1 True or False As the variability in your population increa

1) True or False: As the variability in your population increases, the confidence interval will also increase.

2) True or False: A confidence interval is a statement about your level of confidence in capturing some population parameter

3) True or False: the symbol alpha represents the probability that we rejected the null hypothesis when it was really true in the population.

4) True or False: If I reject the null hypothesis, I could have made a Type II error

5) True or False: For a study, the Ha was that Mu was not equal to 5. Assume the z* value is +1.9

A one tailed test would have a critical value of +1.65, a 2 tailed test would have critical values of +1.96 and -1.96. You SHOULD reject the null hypothesi

Solution

1) True because margin of error increases as population standard deviation increases.

2) True

3) True because alpha is the probability of Type I error.

4) False, Type II error is accepting null hypothesis when it is false.

5) False because this is two tailed test and z statistic falls within critical values. we should accept the null hypothesis.