A simple random sample of size n = 300 is obtained from a population whose size is and whose population size is n=20,000 ans whose proportion with a specified characteristic is p=0.8. Describe the sampling distribution of P^.
A) Approximately normal; ìp = 0.8, óp = 0.023
B) Exactly normal; ìp = 0.8, óp = 0.023
C) Binomial; ìp = 240, óp = 6.93
D) Approximately normal; ìp = 0.8, óp = 0.0894
Answer this Question
The size of the coyote population at a national park increases at the rate of 4.6% per year. If the size of the current population is 130, find how many coyotes there should be in 6 years. Use the function f(x)=130e^0.046t
suppose the alternative hypothesis in a hypothesis test is "the population mean is less than 60" if the sample size is 50 and alpha =.05, the critical value of the z is?
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: 0.06; confidence level 90% ^p and ^q unknown n= (round up to the nearest integer)
Suppose x has a mound-shaped distribution with sigma = 9 . A random sample of size 36 has sample mean 20. Is it appropriate to use a normal distribution to compute a confidence interval for the population mean m? Explain. Find a 95% confidence interval for
A juice company sells its product in either a 48-ounce size or a 32-ounce size. It charges $3.90 for the 48-ounce size. How much should it charge for the smaller size if it wants the price per ounce to be 25% more than the price per ounce of the larger
A bacterial population grows at a rate proportional to the population size at time t. Let y(t) be the population size at time t. By experiment it is determined that the population at t=15 min is 16000 and at t=45 min it is 22000. (a) What was the initial
A model of the solar system shows the sun as a loaf of bread. What size is everything else in this model? (1 point) A the size of a nickel B the size of a pile of bread crumbs C the size of a shoe D the size of a basketball
the following data relate to size of shoes sold at a store during the given week find the average size by the short cut method size of shoes. 4,5,6,7,8,9,10 no of shoes 15,30,45,60,55,40,5
The world’s smallest mammal is the bumblebee bat. Such bats are roughly the same size of a large bumblebee. Listed below are the weights (in grams) from a sample of these bats. Assuming that all such bats have a standard deviation of .3 grams, use a
Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite