A hypothesis will be used to test that a population mean equals 6 against the al
ID: 3389521 • Letter: A
Question
A hypothesis will be used to test that a population mean equals 6 against the alternative that the population mean does not equal 6 with known variance. what are the critical values for the test statistic Z0 for the significance levels? a)0.01 b)0.05 c)0.10
A hypothesis will be used to test that a population mean equals 8 against the alternative that the population mean isless then 8 with known variance. what are the critical values for the test statistic Z0 for the significance levels? a)0.01 b)0.05 c)0.10
Explanation / Answer
1.
A hypothesis will be used to test that a population mean equals 6 against the alternative that the population mean does not equal 6 with known variance. what are the critical values for the test statistic Z0 for the significance levels? a)0.01 b)0.05 c)0.10
Using table/technology, as this is a two tailed test,
a) zcrit = -2.575829304 and 2.575829304 [ANSWER]
b) zcrit = -1.959963985 and 1.959963985 [ANSWER]
c) zcrit = -1.644853627 and 1.644853627 [ANSWER]
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A hypothesis will be used to test that a population mean equals 8 against the alternative that the population mean isless then 8 with known variance. what are the critical values for the test statistic Z0 for the significance levels? a)0.01 b)0.05 c)0.10
As this is a left tailed test, we have negative critical values. By table/technology,
a) zcrit = -2.326347874 [ANSWER]
b) zcrit = -1.644853627 [ANSWER]
c) zcrit = -1.281551566 [ANSWER]
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