Here are summary statistics for randomly selected weights of newborn​ girls: n=36​, x=3211.1​g, s=689.4g. Use a confidence level of 95​% to complete parts​ (a) through​ (d) below.   a. Identify the critical value tα/2 used for finding the margin of error.   tα/2=enter your response here ​(Round to two decimal places as​ needed.) Part 2 b. Find the margin of error.   E=enter your response here g ​(Round to one decimal place as​ needed.) Part 3 c. Find the confidence interval estimate of μ.   enter your response here g<μ

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      ______________

BONUS: Explain (with examples if possible) the relationship between the p-value, alpha, your obtained statistic and your critical value.

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