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From the data bank, select a random sample of 30 individuals.
a. Use the z test to test the hypothesis for IQ that u= 100. Use a = .05.
b. Repeat problem a using the t-test.
c. Do you get the same results?
d. Which test is appropriate?
The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds.
a binomial probability experiment is conducted with the given parameters. compute the probability of x successes in the
What is the probability that both defective lights will be found within three trials?
as an epidemiologist you are going to investigate the effect of a drug suspected of causing malformations in newborn
Suppose that you are purchasing cases of wine and that periodically you select a test case to determine the adequacy of the bottles' seals. To do this you randomly select and test 3 bottles int he case.
a chemist who has prepared a product designed to kill a particular type of insect wants to evaluate the kill rate of
the pulse rates for 13 adult women were as follows. construct a 0.90 confidence interval for the mean pulse rate. give
In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is your decision if α = 0.01?
What is one of the two differences between the way ZST or ZLT are calculated?
explain the basic idea for performing a hypothesis test based on independent samples to compare two population
A group of department store buyers viewed a new line of dresses and gave their opinions of them. The results are below: Because the largest number (47) indicated the new line is outstanding, the head designer thinks that this is a mandate to go in..
If the mean is 24 inches and the SD is 4.5 inches, What is the height of a plant with a z score of 0? My question is what is the formula used to solve this?
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