Questions from Statistics Principles

Q: _______ is a procedure, based on sample evidence and probability,

_______ is a procedure, based on sample evidence and probability, used to test statements regarding a characteristic of one or more populations.

Q: If we reject the null hypothesis when the statement in the null

If we reject the null hypothesis when the statement in the null hypothesis is true, we have made a Type_____ error.

Q: Put the following P-values in order from weakest to strongest

Put the following P-values in order from weakest to strongest in terms of evidence against the statement in the null hypothesis. (a) 0.139 (b) 0.083 (c) 0.091 (d) 0.005 (e) 0.019

Q: Determine the critical value for a right-tailed test regarding a

Determine the critical value for a right-tailed test regarding a population proportion at the  = 0.01 level of significance

Q: Determine the critical value for a left-tailed test regarding a

Determine the critical value for a left-tailed test regarding a population proportion at the = 0.1 level of significance.

Q: Determine the critical value for a two-tailed test regarding a

Determine the critical value for a two-tailed test regarding a population proportion at the  = 0.05 level of significance.

Q: H0: p = 0.3 versus H1: p >

H0: p = 0.3 versus H1: p > 0.3 n = 200; x = 75; a = 0.05

Q: H0: p = 0.6 versus H1: p <

H0: p = 0.6 versus H1: p < 0.6 n = 250; x = 124; a = 0.01

Q: The village of Oak Lawn wishes to conduct a study regarding the

The village of Oak Lawn wishes to conduct a study regarding the income level of households within the village. The village manager selects 10 homes in the southwest corner of the village and sends an...

Q: H0: p = 0.55 versus H1: p <

H0: p = 0.55 versus H1: p < 0.55 n = 150; x = 78; a = 0.1