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A recent survey determined the IQ score of a random selection of residents of Alaska. The accompanying relative frequency
4 answers
asked by
Anonymous
2,921 views
14 wrestlers compete in a competition .if each wrestler wrestles one match each with each other wrestler ,what are the total
4 answers
asked by
Kimberely
3,214 views
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally
7 answers
asked by
Tamia
5,997 views
As a class teacher, your class students took test in both statistics and mathematics. The results are as follows:- mean
3 answers
asked by
RILIWAN Olatunji
446 views
You are interested in the number of chocolate chips on a cookie. To estimate this number, you consider two different
3 answers
asked by
Joseph
996 views
To be considered for pilot school, 12 students took a spatial reasoning test that resulted in this list of scores. Find the
4 answers
asked by
Ember Lovet
2,278 views
3) A company that manufactures oil seals found the population mean to be 49.15 mm (1.935 in.), the population standard deviation
3 answers
asked by
Cr
1,057 views
The correlation coefficient between X and Y is the same as the correlation coefficient between Y and X.
True - If you were to
4 answers
asked by
Nick
1,694 views
A lottery ticket has a grand prize of $21.5 million. The probability of winning the grand prize is .000000023. Determine the
4 answers
asked by
Naomi
1,004 views
The meaning of a is
4 answers
asked by
Anonymous
158 views
Assume that a researcher randomly selects 14 newborn babies and count the number of girls, X. The probabilities corresponding to
4 answers
asked by
Emily
2,172 views
I am having a really rough time figuring out how this expected value was found in this Chi Square problem.
272 flies had long
1 answer
asked by
Ellie
455 views
The probability that a randomly selected two-year-old male stinkbug will live to be three years old is .59963 what is the
2 answers
asked by
Audrey
911 views
Researchers recruited 20 volunteers- 8 men and 12 men omen- to take part in an experiment
2 answers
asked by
Anonymous
529 views
by what factor should the sample size in a poll be increased in order to cut the margin of error in half
1 answer
asked by
Andrzej
368 views
Suppose that on average 10% of the people with an airline-ticket doesn't show up at the flight.For a certain flight, the plane
2 answers
asked by
Rechal
531 views
The amount of time the university professors devote to their jobs per week is normally dis- tributed with a mean of 52 hours and
3 answers
asked by
Melvin
2,553 views
Consider the population (1,3). Suppose you take all possible samples of size n=3 with replacement. What is the sampling
1 answer
asked by
Nina
372 views
A study is conducted regarding shatterproof glass used in automobiles. Twenty-six glass panes are coated with an anti-shattering
2 answers
asked by
Kaley
795 views
Suppose that 4 cards are drawn from a well-shuffled deck of 52 cards. What is the probability that all 4 are hearts?
Would the
4 answers
asked by
Kelly
2,122 views
Can 2 X 2 between-subject ANOVA be used if participants were from the same class and all completed the same survey?
For example,
1 answer
asked by
2-way ANOVA
396 views
A scratch-card costs 5¤ and has two possible prizes. There is a 10% chance you get 5¤ back and a 1% chance you get 100¤. In
1 answer
asked by
Emilia
337 views
Can someone please explain this to be, so that I can understand this problem?
Select three different five-card combinations or
2 answers
asked by
Hayley
1,121 views
Jar A contains 8 red balls and 2 green balls. Jar B contains 6 red balls and 3 green balls. You randomly select one ball from
4 answers
asked by
Laiali
1,351 views
The heights of American women ages 18 to 29 are normally distributed with a mean of 64.3 inches and a standard deviation of 3.8
4 answers
asked by
Casey
1,315 views
Local food distributor claims that 18% of all food sold are vegetables. If 112 food items are sold are randomly selected, what
1 answer
asked by
Nicole
476 views
The average U.S. yearly capita consumption of citrus fruit is 26.8 pounds. Suppose that the distribution of fruit amounts
3 answers
asked by
Marnee
1,813 views
describe the distribution of the data with regard to the shape, outliers, center, and spread.
Time Number of People 10 am - 11 am
9 answers
asked by
Amethyst
716 views
Which of the following is not true about histograms?
A) The bars must touch each other. B) A histogram may be symmetric or skewed
4 answers
asked by
Amethyst
2,681 views
Someone help me understand this please??
The following is a frequency data set for test scores in a small class. Construct a
2 answers
asked by
Amethyst
840 views
in a study of a weight loss program 30 subjects lost a mean of 2.6lbs after 12 months. methods of statistics can be used to show
2 answers
asked by
Linda
920 views
A die is rolled 16 times and the number that appeared for each roll was recorded.
Number on die for each roll 5 2 2 6 1 4 6 1 1 3
6 answers
asked by
Amethyst
670 views
Consider the following data set: 3, 4, 6, 7, 9, 9, 11.
Identify a number you could add to the set to keep the mean smaller than
1 answer
asked by
Amethyst
457 views
Consider the following data set: 3, 4, 6, 7, 9, 9, 11.
Identify a number you could add to the set to keep the mean larger than
2 answers
asked by
Amethyst
468 views
A wide variety of oak trees grow in the United States. In one study, a sample of acorns was collected from different locations,
3 answers
asked by
Amethyst
1,444 views
my z score for a rats liver glycogen percentage is -0.62 and the average population is 3.32. How can I analyze my z score? what
1 answer
asked by
shiva
444 views
Assume the weights of Farmer Carl's potatoes are normally distributed with a mean of 7.0 ounces and a standard deviation of 1.3
4 answers
asked by
Kiki
1,447 views
Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.0 ounces and a standard deviation of 1.2
2 answers
asked by
Melysa
772 views
Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 7.9 ounces and a standard deviation of 1.1
2 answers
asked by
Kyle
1,339 views
I don't understand this at all..
Assume that the weights of Chinook Salmon in the Columbia River are normally distributed. You
2 answers
asked by
Kiki
480 views
The yearly rainfall in Vancouver, B.C. follows a normal distribution with standard deviation 172 mm. In 20% of years, the city
4 answers
asked by
May
3,712 views
A committe of 5 members will be chosen from a group of 10 teachers and 5 students. What is the probability that the committee
wil
2 answers
asked by
Angel
759 views
A committe of 5 members will be chosen from a group of 10 teachers and 5 students. What is the probability that the committee
wil
2 answers
asked by
Angel
680 views
A 2014 Gallup Poll of 1028 adults found that 216 thought abortion should be illegal in all circumstances, a decrease of 2
2 answers
asked by
Anonymous
533 views
A 2014 Gallup Poll of 1028 adults found that 216 thought abortion should be illegal in all circumstances, a decrease of 2
2 answers
asked by
Anonymous
696 views
Volunteers for a human performance study were randomly divided into two groups. The first group had their flexibility measured
3 answers
asked by
Anonymous
1,448 views
consider b1=100 and b0=5, this gives us the estimated regression equation of y=100x+5
Find the estimated standard deviation of b1
1 answer
asked by
Jordon
515 views
Suppose flights at a large metropolitan airport are on-time 68% of the time and late 32% of the time. We want to use a table of
1 answer
asked by
Anonymous
1,190 views
Alec is taking a Statistics class and a Geography class. The probabilities that he passes these two classes are independent. The
2 answers
asked by
Anonymous
614 views
An American roulette wheel has 38 slots, of which 18 are black, 18 are red, and 2 are green. When the wheel is spun, the ball is
3 answers
asked by
Anonymous
2,841 views
There are several advantages of using a paired t-test. Since the same subjects are being tested in each of the varying
1 answer
asked by
Katie
983 views
In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 25
1 answer
asked by
Jasmine
455 views
In Marissa's calculus course, attendance counts for 20% of the grade, quizzes count for 15% of the grade,
2 answers
asked by
Gina
1,182 views
Mansoor Tuesday, December 16, 2014 at 8:44pm
Bender Electronics buys keyboards for its computers from another company. The
2 answers
asked by
Sarna
897 views
The t-distribution has a variance that is greater than one
True or false?
3 answers
asked by
Fanny
1,459 views
The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal. 10 18 24 30 19 22 24 20
2 answers
asked by
Anonymous
657 views
A recent study of 180 females showed that 25 % took vitamins. 9. ... A federal report indicated that 27 % of children ages 2 to
1 answer
asked by
Anonymous
414 views
Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power. Yet Ames took routine lie detector tests and
3 answers
asked by
Rachel Lee
678 views
Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power. Yet Ames took routine lie detector tests and
3 answers
asked by
Rachel Lee
4,112 views
Susan is a sales representative who has a history of making a successful sale from about 67% of her sales contacts. If she makes
2 answers
asked by
Tamia
582 views
The control group score of 47.26 on the pretest put it at the 26th percentile does this percentile score represent nominal
3 answers
asked by
Zarlish khan
538 views
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample
1 answer
asked by
Becky
720 views
A healthcare professional wants to estimate the mean birth weight of infants born to mothers who take a certain vitamin while
2 answers
asked by
Jess
486 views
The following data gives the amount of time (in minutes), it took a sample of 16 patients with hypertension to achieve their
1 answer
asked by
Jen
449 views
A sociologist is interested in the proportion of people that would attend a fund raiser if the had to pay to enter the event.
2 answers
asked by
Kelly
523 views
A politician is preparing to speak to voters in Connecticut. He DOES NOT favor gun control laws. However, a survey of 1200
2 answers
asked by
Richard
525 views
he state bridge design engineer has devised a plan to repair North Carolina's 4952 bridges that are currently listed as being in
1 answer
asked by
Ismerai
415 views
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between
1 answer
asked by
kiki
586 views
A soft white 3-way bulb has an average life of 1200 hours with a standard deviation of 50
hours. Find the proportion of the life
2 answers
asked by
Haris
484 views
The control group's score of 47.26 on the pretest put it at the 26th percentile. Does this percentile score represent nominal,
2 answers
asked by
Sajjad
511 views
The control group had a standard deviation of 7.78 on the pretest. Does this standard deviation represent nominal, ordinal, or
1 answer
asked by
Sajjad
424 views
x3 = −16.2 + 4.0x1 + 9.4x4 − 1.3x7
Suppose that n = 14 data points were used to construct the given regression
1 answer
asked by
Amy
388 views
Jim Mead is a veterinarian who visits a Vermont farm to examine prize bulls. In order to examine a bull, Jim first gives the
2 answers
asked by
Lola
881 views
a cricketer has scored an average of 25.4 runs in his last 10 innings. he scored 58 and 16 runs in the next 2 innings. what is
3 answers
asked by
Anonymous
370 views
1. Find the indicated probability.
In a survey of 300 college graduates, 63% reported that they entered a profession closely
3 answers
asked by
Snotunicorn
2,138 views
Suppose a 95% confidence interval for the mean salary of college graduates in a town in Mississippi is given by [$36,080,
3 answers
asked by
Help
1,173 views
There are 14 qualified applicants for 3 trainee positions in a fast-food management program. How many different groups of
3 answers
asked by
Bobby
1,278 views
Data are collected on the 35 students in a history course. Which of the following is not a variable of the data set ?
A-student
4 answers
asked by
Stephanie
4,193 views
How many different rearrangements are there using the letters AABBBCCCC
1 answer
asked by
Anna
292 views
Letters A-J are put into a bag, 5 are selected at random (without replacement) to form a 5letter word:
A. How many different
2 answers
asked by
Anna
522 views
Find P( ace on 1st card and jack on 2nd)
3 answers
asked by
Anonymous
1,656 views
3 X + Y equal to 13 and 2x + Y equal to 20 which one of the following also regression equation of Y on X
1 answer
asked by
Anonymous
304 views
The Food Marketing Institute shows that 18% of households spend more than $100 per week on groceries. Assume the population
1 answer
asked by
Alex
786 views
Allegiant Airlines charges a mean base fare of $89. In addition, the airline charges for making a reservation on its website,
2 answers
asked by
Jack
1,152 views
A simple random sample of 60 items resulted in a sample mean of 76. The population standard deviation is 12.
a. Compute the 95%
2 answers
asked by
Jaycee
577 views
The average annual cost of the first year of owning and caring for a large dog is $1,843 (US News and World Report, September 9,
1 answer
asked by
Brinlee
943 views
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
c. To the left of -1.746. (Use 2
1 answer
asked by
Madi
773 views
One of the questions on a survey of 1,000 adults asked if today's children will be better off than their parents (Rasmussen
3 answers
asked by
Ben
2,409 views
A researcher studying salaries of police officers around the nation surveyed 64 officers and found a mean salary of $71,228 with
1 answer
asked by
Aailyah
400 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 10. Use the 68-95-99.7
1 answer
asked by
Mel
399 views
56 employees in an office wear glasses 32 have single vision correction and 24 wear bifocals if 2 employees are selected at
3 answers
asked by
Ashley
519 views
roll 2 standard dice and add the numbers. what is the probability of getting a number larger than 8 for the first time on the
1 answer
asked by
Fatima
427 views
X+4y=-8
1 answer
asked by
Jessica
280 views
Data set
43, 49, 49, 61, 36, 52, 37, 44, 24 36, 64, 20, 21, 30, 36, 61, 59, 20 Find the 14th and 88th percentiles for data.
1 answer
asked by
Missyvivi12
278 views
Find Q3 and IQR
21,13 59, 48, 9, 25, 41, 35, -7, -2, 18, 27, -52, 29, 17, 1
1 answer
asked by
Missyvivi12
288 views
Use the given confidence level and sample data to find a confidence interval for the population standard deviation. Assume that
2 answers
asked by
Flaca
723 views
An employer wishes to hire five people from a group of 24 applicants. 14 men and 10 women
all of whom are equally qualified to
1 answer
asked by
Muhammad
448 views
In Marissa’s calculus course, attendance counts for 15% of the grade, quizzes count for 15% of the grade, exams counts for 50%
3 answers
asked by
AR
779 views
How many more games had 12 to 15 balls than 4 to 7 balls made
5 answers
asked by
Per
975 views
According to a survey 35% of adults are against using animals for research assume that this result holds true for the current
1 answer
asked by
David
284 views
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