Question
T-Distribution Hypothesis Test You wish to test the following claim (HaHa) at a significance level of=0.050.05. Ho:=54.9Ho54.9 Ha:54.9Ha54.9 You believe the population is normally distributed,
T-Distribution Hypothesis Test
You wish to test the following claim (HaHa) at a significance level of=0.050.05.
Ho:=54.9Ho54.9
Ha:54.9Ha54.9
You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data:
78.5 |
23.1 |
7.9 |
36.8 |
47.9 |
15.4 |
49.6 |
90.5 |
28.1 |
37.4 |
39.5 |
66.5 |
29.4 |
39.5 |
What is the critical value for this test? (Report answer accurate to three decimal places.)
critical value =
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
The test statistic is...
- in the critical region
- not in the critical region
This test statistic leads to a decision to...
- reject the null
- accept the null
- fail to reject the null
As such, the final conclusion is that...
- There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 54.9.
- There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 54.9.
- The sample data support the claim that the population mean is not equal to 54.9.
- There is not sufficient sample evidence to support the claim that the population mean is not equal to 54.9.
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