QMS 102 Study Guide - Standard Deviation, Null Hypothesis, Test Statistic

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Ron Babin

Document Summary

There is enough evidence to reject the claim. There is enough evidence to support the claim. Fail to reject h0 there is not enough evidence to reject the claim. There is not enough evidence to support the claim. 11. 2 z test of hypothesis for the mean (s known) Example 1: in an advertisement, a pizza shop claims that its mean delivery time is less than 30 minutes. A random selection of 36 delivery times has a sample mean of 28. 5 minutes. Use f3 (test) to get the following menu. Step 3: use the f1 key to get the following menu. Step 4: use the f1 key to get the following display. 0m : 30 s : 3. 5 x : 28. 5 (f2) n : 36. Since the p-value=0. 005064< 0. 01, we should reject the null hypothesis h0. Example 2: a college admissions director claims that the mean age of all students currently enrolled is 23 years.