Question
Consider the following hypotheses: H 0 : 219 H A : < 219 A sample of 75 observations results in a sample mean of 206.
Consider the following hypotheses: H0: 219 HA:< 219 A sample of 75 observations results in a sample mean of 206. The population standard deviation is known to be 26.(You may find it useful to reference the appropriate table:ztableorttable) a-1.Calculate the value of the test statistic.(Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.)
a-2.Find thep-value. multiple choice 1
- 0.05 p-value < 0.10
- p-value 0.10
- p-value < 0.01
- 0.01 p-value < 0.025
- 0.025 p-value < 0.05
b.Does the above sample evidence enable us to reject the null hypothesis at= 0.10? multiple choice 2
- Yes since thep-value is less than the significance level.
- No since thep-value is greater than the significance level.
- No since thep-value is less than the significance level.
- Yes since thep-value is greater than the significance level.
c.Does the above sample evidence enable us to reject the null hypothesis at= 0.01? multiple choice 3
- Yes since thep-value is less than the significance level.
- Yes since thep-value is greater than the significance level.
- No since thep-value is less than the significance level.
- No since thep-value is greater than the significance level.
d.Interpret the results at= 0.01. multiple choice 4
- We conclude that the population mean is less than 219.
- We cannot conclude that the population mean is less than 219.
- We conclude that the population proportion differs from 219.
- We conclude that the population proportion equals 219.
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