Mathematics, 08.08.2021 17:50 frankcaroccio0203
1. Select the correct statement. a.) The critical z-score for a left-tailed test at a 25% significance level is -0.40. b.) The critical z-score for a right-tailed test at a 17% significance level is 0.57. c.) The critical z-score for a two-sided test at a 3% significance level is 2.17. d.) The critical z-score for a two-sided test at a 5% significance level is 1.65.
2. What value of z* should be used to construct a 95% confidence interval of a population mean? Answer choices are rounded to the hundredths place.
a.)
1.96
b.)
1.65
c.)
3.29
d.)
2.58
Answers: 3
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