Concept explainers
(a)
Conduct Z test for a two-tailed test using the five steps of hypothesis testing with population mean 10, population standard deviation 2,
Obtain the 99% confidence interval.
(b)
Conduct Z test for a two-tailed test using the five steps of hypothesis testing population mean 10, population standard deviation 2, sample size 100, and sample mean 12.
Obtain the 99% confidence interval.
(c)
Conduct Z test for a two-tailed test using the five steps of hypothesis testing population mean 12, population standard deviation 4, sample size 50, and sample mean 12.
Obtain the 99% confidence interval.
(d)
Conduct Z test for a two-tailed test using the five steps of hypothesis testing population mean 14, population standard deviation 4, sample size 100, and sample mean 12.
Obtain the 99% confidence interval.
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Statistics for Psychology
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