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submission is used for your score You may need to use the appropriate appendix table or...


submission is used for your score You may need to use the appropriate appendix table or technology to answer this question Consider the following hypothesis test A sample of 50 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use -0.05.(Round your answers to two decimal places.) (a)-52.6 Find the value of the tbest statistic State the critical values for the rejection rule. (f the test is one-tailed, enter NONE for the unused tail.) best stalistxs Stane your conclusion O Do not reject H There is insufficient evidence to cendlude that O Do not reject He There is suicent evidence to conclude that a > so O Reject M There is insulicient evidence to conclude that a> so Reject H There is sufficient eviderce to condlude that 50. Find the value of State the itical values for the nejection nule the test is one-tailed, enter NONE for the unused tail.j test statiatic s test statistic a O Do not neject Ho There is nouficient evidence to condude that >s Reject H Thare is insuficient evidence to conclude thet test is one-taled,N
submission is used for your score You may need to use the appropriate appendix table or technology to answer this question Consider the following hypothesis test A sample of 50 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use -0.05.(Round your answers to two decimal places.) (a)-52.6 Find the value of the tbest statistic State the critical values for the rejection rule. (f the test is one-tailed, enter NONE for the unused tail.) best stalistxs Stane your conclusion O Do not reject H There is insufficient evidence to cendlude that O Do not reject He There is suicent evidence to conclude that a > so O Reject M There is insulicient evidence to conclude that a> so Reject H There is sufficient eviderce to condlude that 50. Find the value of State the itical values for the nejection nule the test is one-tailed, enter NONE for the unused tail.j test statiatic s test statistic a O Do not neject Ho There is nouficient evidence to condude that >s Reject H Thare is insuficient evidence to conclude thet test is one-taled,N
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a)

(1) Null and Alternative Hypotheses The following null and alternative hypotheses need to be tested: Ho: μ < 50 Ha: μ > 50 This corresponds to a right-tailed test, for which a z-test for one mean, with known population standard deviation will be used. (2) Rejection Region Based on the information provided, the significance level is α-0.05, and the critical value for a right-tailed test is ze-1.64 The rejection region for this right-tailed test is R-fz: z> 1.64) The z-statistic is computed as follows: -Ho 52.6-50 2.517 (4) Decision about the null hypothesis Since it is observed that z 2.517 zc 1.64, it is then concluded that the null hypothesis is rejected Using the P-value approach: The p-value is p-0.0059, and since p 0.0059 < 0.05, it is concluded that the null hypothesis is rejected. (5) Conclusion It is concluded that the null hypothesis Ho is rejected. Therefore, there is enough evidence to claim that the population mean μ is greater than 50, at the 0.05 significance level.

Reject D option

b)

Do not reject.. A option

c)

Reject..C option

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