3 18 Calculate The 95 Confidence Interval Using The Found Margin Of Error Use The Given Information To Answer Questio 1 (38.42 KiB) Viewed 29 times
3 18 Calculate The 95 Confidence Interval Using The Found Margin Of Error Use The Given Information To Answer Questio 2 (41.48 KiB) Viewed 29 times
3 18. Calculate the 95% confidence interval using the found margin of error. Use the given information to answer questions 19-20. Jana would like to conduct a hypothesis test to determine if she is caming on average more than $18 per commission from her membership sales at a local spa with a population standard deviation of 16. She conducted a study using a sample of 20 members and determined that the sample mean commission is $19.10. Using a significance level of 10% answer the following given that 20,=18 -6:0 > 18 19. Calculate the test statistic, rounded to two decimal places. a) 3.12 b) 3.94 c) 3.56 d) 3.68 20. Decide on the null hypothesis based on the found test statistic and critical value
20. Decide on the null hypothesis based on the found test statistic and critical value. 0 Os a) Reject, the test statistic falls in the rejection region created by the critical value. b) Do not reject the test statistic does not fall in the rejection region created by the critical value. c) Reject the critical value falls in the rejection region created by the test statistic. d) Do not reject the critical value does not fall in the rejection region created by the test statistic Os Os
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