It is believed that gpa (grade point average, based on a four point scale) should have a positive linear relationship with act scores. given below is the technology output for predicting gpa using act scores based a data set of 8 randomly chosen students from a university. what are the decision and conclusion on testing whether there is any linear relationship at 1% level of significance between gpa and act scores?

Accounts receivable arising from sales to customers amounted to $40,000 and $55,000 at the beginning and end of the year, respectively. income reported on the income statement for the year was $180,000. exclusive of the effect of other adjustments, the cash flows from operating activities to be reported on the statement of cash flows is

Using a cps-sample of 7,440 individuals, you estimate the following regression: = 20.91 - 2.61 x female where female is a binary variable that takes on the value of 1 for females and is 0 otherwise. the standard error on the coefficient on female is 0.25. the 95% confidence interval for the gender wage gap, or the amount that females earn less, is: a) [-3.10, -2.12] b) [18.30, 23.52] c) [-3.02, -2.20] d) [-1.96, -1.64]

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.