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Hypothesis Testing
Page 3
Questions (2,043)
The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a
4 answers
asked by
Katy
3,326 views
A research center claims that 50% of people believe that drivers should be allowed to use cellular phones with hands free
2 answers
asked by
Amber
530 views
α=0.05 for a two-tailed test. Assume that the data has a normal distribution and the number of observations is greater than
3 answers
asked by
Anonymous
1,681 views
Chicken Delight claims that 90 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample
3 answers
asked by
Ariel
1,408 views
A marketing consultant was hired to visit a random sample of five sporting goods stores across the state of California. Each
2 answers
asked anonymously
124 views
A state school administrator says that the standard deviation of test scores for 8th grade students who took a U.S. history
2 answers
asked anonymously
83 views
1) A null Hypothesis assumes that a process is producing no more than a maximum allowable rate of defective items. The Type II
2 answers
asked by
alley cat
82 views
Henri conducts an experiment to determine who likes peanut butter more: boys or girls. He has 25 girls and 25 boys taste some
1 answer
asked by
coronaa
80 views
Recall from the setup that X_1,\ldots ,X_ n\sim X are i.i.d. random variables with density f_\theta, for some unknown \theta \in
2 answers
asked anonymously
83 views
Recall from the setup that X_1,\ldots ,X_ n\sim X are i.i.d. random variables with density f_\theta, for some unknown \theta \in
2 answers
asked anonymously
73 views
X_1,\ldots ,X_ n\sim X are i.i.d. random variables with density f_\theta, for some unknown \theta \in (0,1):
f_\theta (x)=\left\{
2 answers
asked anonymously
73 views
The senior class president of a large university claimed that 55% of the senior class was interested in going on the senior
28 answers
asked by
Grammar Girl
157 views
a) The mean lifetime of a sample of 100 light tubes produced by a company is found to be 1570 hours with standard deviation of
3 answers
asked by
john
1,433 views
A video streaming service announced that 40% of its subscribers in the United States watched its latest
documentary. Robert
1 answer
asked by
Jeon
136 views
How can we use simulations to decide whether differences between parameters are significant?
2 answers
asked anonymously
56 views
. A Home Owners' Association has determined that the average number of days a house was in the market for sale was 90 days,
2 answers
asked anonymously
156 views
13. You read that the average age of people living in the United States is 38.5. You believe that age is not
accurate for
1 answer
asked by
Jeon
79 views
12. Makayla owns a gardening store. She has a machine that automatically fills bags of mulch. The bags of
mulch should weigh 10
1 answer
asked by
Jeon
157 views
8. A brand of penne pasta contains an average of 354 individual penne per box. Subash thinks there are
more penne per box than
3 answers
asked by
Jeon
108 views
In past years, the proportion of engineering students at the local college who did not own a calculator was 0.15. Angelina
2 answers
asked by
kay ( PLS HELP!!)
191 views
Each bag of different colored jelly beans is supposed to have 30% blue jelly beansRamon believes there are actually a greater
4 answers
asked by
kay ( PLS HELP!!)
203 views
What are the test for heteroscedasticity?
1 answer
asked by
Evaristi Paulo
59 views
1.Given the following samples of three groups; group1; 85,86,88,75,78,94,98,79,71,80, group2; 91,92,93,85,87,84,82,88,95,96 and
2 answers
asked anonymously
45 views
Jeremy hypothesized that adults with blue eyes are shorter than adults with brown eyes. He collected data by visiting all of the
1 answer
asked by
Jsmzjsmj
92 views
The null hypothesis declares that there is no relationship between the variables to be tested. True or false
2 answers
asked anonymously
39 views
A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of
4 answers
asked by
David
2,357 views
. A company is considering installing new machines to assemble its products. The company is considering two types of machines,
4 answers
asked by
jessika
1,380 views
The mean arrival rate of flights at O’Hare Airport in marginal weather is 195 flights per hour with a historical standard
2 answers
asked by
Marilyn
981 views
TABLE 12-6
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation
3 answers
asked by
NDW
1,649 views
a perfume company claims that the best selling perfume contains at most 25% alcohol. twenty bottles were selected and found to
5 answers
asked by
Arvee
2,049 views
A sample of 400 items is taken from a population whose standard deviation is
10. The mean of the sample is 40. Compute whether
2 answers
asked by
Shubham rajput
1,121 views
Joan moves into her apartment and wants to purchase a new couch. She wants to determine if there is any difference between the
3 answers
asked by
Hani
1,348 views
A professor believes that all Thursday sections are cursed and will always score lower on tests compared to Monday sections. To
2 answers
asked by
Luis
552 views
The accompanying data table lists measured voltage amounts supplied directly to a family’s home. The power supply company
3 answers
asked by
Lynn
1,471 views
A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon. You believe the claim is
2 answers
asked by
sue
1,178 views
State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test the following statements.
(a) The
3 answers
asked by
Sue 12
1,190 views
In a goodness-of-fit test, the null hypothesis states that the data came from a normally distributed population. The researcher
3 answers
asked by
Stuart
765 views
Making a Scientific Hypothesis Quick Check
3 of 33 of 3 Items Question A researcher wants to investigate the impact of salt water
2 answers
asked anonymously
274 views
Making a Scientific Hypothesis Quick Check
1 of 31 of 3 Items Question Which of the following would be a testable hypothesis?(1
3 answers
asked anonymously
149 views
Discuss the assumptions for using a chi-square test. Research articles from the Ashford Library and provide practical examples
2 answers
asked by
wallic
1,138 views
TABLE 12-3
A computer used by a 24-hour banking service is supposed to randomly assign each transaction to one of 5 memory
2 answers
asked by
WMD
1,101 views
The mean weight of all 20-year old women is 130 pounds. A random sample of 30 women athletes who are 20 years old showed a
2 answers
asked by
Serena P.
812 views
Which of the following would be a testable hypothesis?(1 point)
2 answers
asked anonymously
89 views
Which of the following is a testable hypothesis?
A. Altered temperature may affect gas production, which measures fermentation
3 answers
asked by
Anonymous
2,200 views
Research at the University of Toledo indicates that 50 percent of the students change their major area of study after their
1 answer
asked by
Monique
886 views
Men spend an average of 29 minutes per day on weekends and holidays exercising and playing sports. They spend an average of 23
3 answers
asked by
angie
1,348 views
A Kansas University research station wishes to investigate if a new variety of wheat is more resistant to a disease than an old
3 answers
asked by
Meep
1,560 views
I want to test H0: p = .12 vs. Ha: p ≠ .12 using a test of hypothesis. This test would be called a(n) ____________ test.
A)
2 answers
asked by
Michael
1,022 views
The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 55 gm. The process
3 answers
asked by
alex
1,752 views
Which of the following would be a testable hypothesis?(1 point)
Responses Dropping a ball from a height of 10 m will cause it to
7 answers
asked anonymously
81 views
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