A decision-makor wishes to test the null andemative hypotheses shown to the right using an alpha level equal to 0.05. The population standard deviations are assumed to be known uter the sample data are collected, the test statistic is computed to be z=2.43. Complete parts a through c below Họ: H -2 =0 a. Using the test statistic approach, what conclus ion should be reached about the null hypothesis? Determine the critical value(s) for a= 0.05. Select the corroct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. OB. 22/2=

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Họ: H -2 =0
A decision-makor wishes to test the null and emative hypotheses shown to the right using an alpha level equal to 0.05. The population
standard deviations are assumed to be known uter the sample data are collected, the test statistic is computed to be z=2.43. Complete
parts a through c below.
a. Using the test statistic approach, what conclus ion should be reached about the null hypothesis?
Determine the critical value(s) for a = 0.05. Select the corroct choice below and fill in the answer box to complete your choice.
(Round to two decimal places as needed.)
O A. Z=
OB. 22/2=
Oc. -1
Transcribed Image Text:Họ: H -2 =0 A decision-makor wishes to test the null and emative hypotheses shown to the right using an alpha level equal to 0.05. The population standard deviations are assumed to be known uter the sample data are collected, the test statistic is computed to be z=2.43. Complete parts a through c below. a. Using the test statistic approach, what conclus ion should be reached about the null hypothesis? Determine the critical value(s) for a = 0.05. Select the corroct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. Z= OB. 22/2= Oc. -1
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