ptA Design E Insert Below Ell Insert Left Merge Cells 200.57 BE A-t Above EB Spl

Question

ptA Design E Insert Below Ell Insert Left Merge Cells 200.57 BE A-t Above EB Split Cells Auto EB El El Insert Right Split Table HHAutofit te Direction Rows & Columns Merge Cell Size Alignment For questions 1-2: Suppose we desire to perform the following one- sided upper hypothesis test on the mean of a population (variance known): H1: Ho For questions 3-4: Suppose we desire to perform the following one sided lower on the mean population (variance known): H1: H For questions 5-6: Suppose we desire to perform the following two- sided hypothesis test on the mean of a population variance known): Ho: Not allowed. This test can only be be saved and resume Multiple Attempts This test can Force Completion Question Completion Status: 1 level of a 0.10 1. Find za for a confidence -5.048

Explanation / Answer

1)

We want to find Z0.10 . This is the point above which the probability is 0.10.

So from the Normal tables, we have Z0.10 = 1.282

Hence the 5th option is the correct option.

2)

We are dealing with a one-sided upper tail test.

We are given that the value of the test statistic is 0.94

So the p-value is P[Z>0.94] = 0.174

Hence the 7th option is the correct option.

3)

We want to find Z0.04 . This is the point above which the probability is 0.04.

So from the Normal tables, we have Z0.04 = 1.751

Hence the 6th option is the correct option.

4)

We are dealing with a one-sided lower tail test.

We are given that the value of the test statistic is -0.56

So the p-value is P[Z<-0.56] = 0.288

Hence the 8th option is the correct option.

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