QUESTION 1

1. "If T-Obtained=1.2, T-Critical = +/- 1.325, what is our decision?"
2. Retain NullReject NullRetain AlternativeReject Alternative

2 points

QUESTION 2

1. "In a Z-test we have decided to use a tow-tailed test with alpha = 0.05 as our level of significance. If, in fact, the null hypothesis is treu, what is the probability of making a Type I Error?"
2. 0.05.0.250.020.1

2 points

QUESTION 3

1. Assume a distirbution in which s=6. What is the standard error of the mean basd on a sample N=10?
2. 1671.51.892

2 points

QUESTION 4

1. The Critical Value for a two-tailed z-test with alpha = 0.01 would be
2. +/-1.96+/-1.64+/-2.33+/-2.58

2 points

QUESTION 5

1. Given this:
3. What should be the decision at Alpha=0.052-tail?
4. Reject Null
5. Retain Alternative
6. Retain Null
7. Reject Alternative
8. What?