Question

A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 5% significance level.\ $ar{x}$ = 31, $n$ = 29, $sigma$ = 9, $H_0$: $mu$ = 30, $H_a$: $mu eq$ 30\ The test statistic is z = \ (Round to two decimal places as needed.)\ Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice.\ (Round to two decimal places as needed.)\ A. The critical value is $z_{alpha}$ = \ B. The critical value is $-z_{alpha}$ = \ C. The critical values are $pm z_{alpha/2} = pm$\ \ the null hypothesis. The data sufficient evidence to conclude that the mean is

          A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 5% significance level.\
$ar{x}$ = 31, $n$ = 29, $sigma$ = 9, $H_0$: $mu$ = 30, $H_a$: $mu 
eq$ 30\
The test statistic is z = \
(Round to two decimal places as needed.)\
Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice.\
(Round to two decimal places as needed.)\
A. The critical value is $z_{alpha}$ = \
B. The critical value is $-z_{alpha}$ = \
C. The critical values are $pm z_{alpha/2} = pm$\
\
the null hypothesis. The data sufficient evidence to conclude that the mean is

$A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 5% significance level.\ arx = 31, n = 29, sigma = 9, H0: mu = 30, Ha: mu eq 30The test statistic is z = (Round to two decimal places as needed.)Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice.(Round to two decimal places as needed.)A. The critical value is zalpha = B. The critical value is -zalpha = C. The critical values are pm zalpha/2 = pmthe null hypothesis. The data sufficient evidence to conclude that the mean is$

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