In a survey of 150 NAU students, the following information was obtained: 45 students had taken an Accounting class 40 students had taken an Economics class 29 students had taken a Marketing class 15 students had taken both Accounting and Economics 14 students had taken both Economics and Marketing 22 students had taken both Accounting and Marketing 12 students had taken all three classes a. How many students took an Accounting course and a Marketing course, but not an Economics course

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.