2. The Roman Senate has become concerned about the loyalty of the army in Gaul commanded by Julius Caesar. They claim that of the 80,000 men in the army, at least 28,000 are foreign barbarians. Caesar believes that there are fewer barbarians than that, so the Senate should not worry. He polls one legion of 1,000 men and finds that 340 of them are barbarians.
Assume the value of the test statistic is -0.70. Calculate the p-value for this test using Excel.

a. 0 =NORMSDIST(-0.7)
b. 0 =TDIST(-0.70,999,1)
c. 0 =2*(NORMSDIST(-0.7))
d. 0 =TDIST(0.7,999,2)

Objective: Perform a hypothesis test of one population mean using the standard normal distribution.

3. A pooled proportion estimate can be used to calculate the test statistic for a test of the equality of proportions when the

a. 0 populations are normally distributed
b. 0 sample sizes are small
c. 0 samples are independently drawn from the populations
d. 0 null hypothesis states that the two population proportions are equal

Objective: Interpret the results of hypothesis tests.

4. Sample sizes of two independent samples must be identical if we plan to test for a difference of means.

a. 0 True
b. 0 False

Solution Preview

1) b. False
Explanation: Since the null hypothesis is not rejected at the 0.10 level, p-value > 0.10. ...

Solution Summary

The solution contains various multiple choice solution from Hypothesis testing.

...Test statistic, F = MSR/MSE = 138.25/9.75 = 14.17948718. ... The sample provides enough evidence to support the ... Use the five-step hypothesis testing procedure to ...

... Florida American $ 30.50 Five-Step Hypothesis Testing Houston American ... Formulate and State the Hypothesis: Milwaukee American ... 58.10 Since the sample sizes are ...

... The solution provides a step by step method for the calculation of testing of the ... Data Null Hypothesis µ= 196 Level of Significance 0.01 Sample Size 25 ...

... a) Formulate appropriate hypotheses to test... Conclusion: Reject the null hypothesis. ... Thus the sample provides enough evidence to support the claim that there is ...

... Since we are testing the association between two subjects, chi-square ... The alternative hypothesis is. ... This is a one sample test for population mean and since the ...

... population to be studied b. State the hypotheses for the ... method for the calculation of Statistical Tests, Hypothesis Testing, p-Values, and Sample Size . ...

... d. Write out the null and alternate hypotheses. ... Data Null Hypothesis µ= 16 Level of Significance 0.05 Population Standard Deviation 0.03 Sample Size 50 ...

... Explain the difference between null and alternate hypotheses using the examples. Hypothesis Testing With Two Samples Respond to the following: Give ...