Question
Consider the following hypotheses: H 0 : 80 H A : < 80 The population is normally distributed. A sample produces the following observations: 65
Consider the following hypotheses:
H0: 80
HA:< 80
The population is normally distributed. A sample produces the following observations:
65 60 83 78 72 65
Conduct the test at the 10% level of significance.(You may find it useful to reference the appropriate table:z tableort table)
a.Calculate the value of the test statistic.(Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
b. Find thep-value.
multiple choice 1
- 0.01p-value < 0.025
- p-value < 0.01
- p-value0.10
- 0.05p-value < 0.10
- 0.025p-value < 0.05
c.What is the conclusion?
multiple choice 2
- Do not rejectH0since thep-value is less than the significance level.
- Do not rejectH0since thep-value is greater than the significance level.
- RejectH0since thep-value is less than the significance level.
- RejectH0since thep-value is greater than the significance level.
d.Interpret the results = 0.10.
- We cannot conclude that the population means is less than 80.
- We conclude that the population mean is less than 80.
- We cannot conclude that the population mean is greater than 80.
- We conclude that the population mean is greater than 80.
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