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In a hypothesis test with hypotheses H0:p≤0.58 and H1:p>0.58, a random sample of size 1186 produced a sample proportion of 0.5985. The test is to be made at the 2.5% significance level.
What is the critical value of z?
What is the value of the test statistic, z, rounded to three decimal places?
What is the p-value for this hypothesis test, rounded to four decimal places?
consumer reports is doing an article comparing refrigerators in their next issue. some of the characteristics to be
What is the probability that at least one of the 40 shuttle missions scheduled over the next 5 years results in a critical-item failure?
(a) Find the probability that the taken ball is white. (b) It turned out that the taken ball is white. Find the conditional probability that the added ball was
Determine the probability that among 6 companies surveyed at random, number that provide employees 4 weeks of vacation after 15 years of employment.
Suppose we want to estimate the effects of a community's air quality on the community's median housing price (price), using data from a large set of communities in New York.
Now suppose 3 of his customers want the same ring, and they will go to another store if its already been sold. Would it be appropriate to use the binomial distribution under these conditions? Why or why not?
Check the assumptions and conditions.- Perform the test and find the P-value.- State your conclusion.- Do you think this difference is meaningful? Explain.
To compare the difference in the BMI before and after the diet program, which statistical method should be used?
A sample from each population was selected at random and using the Kruskal-Wallis test, H was computed to be 2.11. What is your decision at the 0.05 level of risk?
one article reports that in a sample of 355 calves less than 4 days old 106 had lesions on their bronchial lymph nodes
The old operation to restore hearing is known to be 30%sucessful. A new operation that restores hearing is being researched. It is known that 88 out of 225 operations using this new method have been successful. Can we justify the claim that the new m..
Beginning inventory, purchases, and sales for Item Foxtrot are as follows:
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