Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .005 significance level.
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Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .005 significance level.
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- Based on a sample of 80 men, 35% owned catsBased on a sample of 20 women, 50% owned cats The test statistic is: (to 2 decimals)The critical value is: (to 2 decimals)Based on the sample of 45 people, 86% owned cars The test statistic is: ________ (to 2 decimals) The positive critical value is:_______(to 2 decimals)If you have a two-tailed test with an alpha of .05, what is the critical value when n = 22? If you have a one-tailed test with an alpha of .05, what is the critical value when n = 158?
- x1 is 164.52 s1 is 26.637 n1 is 100 x2 is 124.466 s2 is 23.778 n2 is 15 What is the value of the test statistic? What is the critical value from the t-table? What is the p-value?You are performing a right-tailed test.If α=.001α=.001, find the critical value, to four decimal places.zα=? You are performing a two-tailed test.If α=.005α=.005, find the positive critical value, to four decimal places.zα/2= ?if alpha is 1%, find the critical value (z-score)
- 8- Degrees of freedom of 12, and significance level of 0.01, thus the critical value of X2 from the table is : 26.271. Select one: True FalseFor the population, 57% of people are searched if stopped. For a sample of 26441 stops, what Z-critical value is required for significance at the 5 % level? In a test to determine if Black men are searched more frequently than the rest of the population? (answer to 2 d.p.s)The test statistic of z = -3.32 is obtained when testing the claim that p < 0.19. Using the significance level a= 0.10 find the critical value’s
- What is the appropriate critical value for the following?a. Determine the positive critical value Z* corresponding to:i. 87.64% confidence.ii.95.34% confidence.iii. 57.04% confidence.b. Which of these three z* values is largest? Which is smallest?The largest Z* value is the one associated with_____ %.The smallest Z* value is the one associated with____ %.A researcher would like to know if a vegan diet will lower cholesterol. A sample of n = 9 adults is obtained, and each has their cholesterol levels measured. Each participant then goes on a strict vegan diet for the next 45 days and cholesterol levels are measured again after that. Average total cholesterol dropped by MD = 14 points after the vegan diet with SS = 1152 for the difference scores. Which of the following is the best statement of HO? What is the critical value of t for two tailed, alpha 0.05? What is the sample variance? Report a number to one decimal. What is the sample standard deviation? Report to one decimal What is the value for the estimated standard error? Report to one decimal. What if the observed t value from the example above? Answer to two decimals. How many degrees of freedom are in the current study? Report a whole number no decimals. True or false. Based on your calculations, the correct decision would be fail to Reject H0.