Test H0: µ=35 and Ha: µ>35 where the sample has n=140, x̄=39.2, s=4.6, and se=1.4. Find the value of the standardized test statistic and report the p-value. What would you conclude using an alpha level of .05?

Consider a normal population with u = 42 and o = 4.7. Calculate the z-score for an x of 48.6 from a sample of size 29. (Give your answer correct to two decimal places.) 1.404

4.27 please. I already had 4.26 answered.  Thank you!

One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At α = .10, is there a significant difference in the mean scores listed below?  Exam Scores for Accounting Students Statistic Distance Classroom Mean scores x⎯⎯1x¯1 = 9.0 x⎯⎯2x¯2 = 10.2 Sample std. dev. s1 = 2.1 s2 = 2.4 Number of students n1 = 19 n2 = 19   Assume μ1 is the mean score of distance learning and μ2 is the mean score of classroom learning. The appropriate hypotheses is H0: μ1 – μ2 = 0 vs. H1: μ1 – μ2 ≠ 0 (b) Specify the decision rule. (Round your answers to 3 decimal places. A negative value should be indicated by a minus sign.) Reject the null hypothesis if tcalc < _______. Or tcalc > ______________. (c) Find the test statistic tcalc. (Round your answer to 4 decimal places. A negative value should be indicated by a minus sign.) tcalc      ______________