A study of the number of business lunches that exec-utives in the insurance and banking industries claim as deductible expenses per month was based on randomsamples and yielded the following results:n1 = 40 x1 = 9.1 s1 = 1.9n2 = 50 x2 = 8.0 s2 = 2.1 Use the four steps in the initial part of Section 1 and the0.05 level of significance to test the null hypothesis μ1 −μ2 = 0 against the alternative hypothesis μ1 − μ2 Z 0.

A significance test is conducted for which the alternative hypothesis states that more than 83 percent of all adult sea turtles on a certain beach are female. A random sample of adult sea turtles from the beach found that 85 percent of the sea turtles were female. The pp-value for the test is 0.4058. If the null hypothesis is true, which of the following statements is a correct interpretation of the pp-value?     Of all possible samples of the same size, 40.58 percent will result in 85 percent of adult sea turtles on the beach being female. Of all possible samples of the same size, 40.58 percent will result in 85 percent of adult sea turtles on the beach being female., A Of all possible samples of the same size, 40.58 percent will result in 85 percent or more of adult sea turtles on the beach being female. Of all possible samples of the same size, 40.58 percent will result in 85 percent or more of adult sea turtles on the beach being female., B Of all possible…

Test the claim that the proportion of men who own cats is smaller than 40% at the .005 significance level. The null and alternative hypothesis would be:

A professor wanted to determine if the GPAS of students at Saddleback College are less consistent than the GPAS of students at Irvine Valley College. To test this, he obtains random samples of students from both colleges and records their GPAS, which are given below. Test the professor's claim at the a=0.05 level of significance. Saddleback College Irvine Valley College 3.7 3.2 3.0 2.5 2.7 3.6 4.0 3.4 3.8 3.2 3.0 2.5 3.6 2.8 2.6 2.5 2.1 2.7 3.9 3.4 2.0 2.2 2.7 3.1 2.0 2.0 2.1 3.8 3.1 2.9 3.2 2.8 Calculator Function [ Select] [ Select] 2-PropZTest ANOVA X^2-Test T-Test 2-SampTTest 2-SampFTest [ Select] v sufficient evidence that the standard deviation of grades for Saddleback College students is [ Select] than the standard deviation for Irvine Valley College students.