CH 10 BANA
hypothesis testing with two populations
Chapter 10's primary focus is
1.645
Refer to Question 1. At 0.05 level of significance what is the critical value associated with this hypothesis test? Round your answer to three decimal places.
.023
Refer to Question 1. What is the p-value associated with the test statistic? Round your answer to three decimal places.
4
Refer to Question 1. What is the standard error of the estimate of the difference between the means? Round your answer to three decimal places.
.3
Refer to Question 1. What is the value of the pooled proportion? Round your answer to three decimal places.
1.179
Refer to Question 2. The null hypothesis to be tested is H0: ud = 0. What is the value of the test statistic? Round your answer to three decimal places.
3.92
Refer to Question 4. At a 95% confidence level, what is the margin of error associated with the point estimate? Round your answer to two decimal places.
null hypothesis should not be rejected
Refer to Question 4. Based on the test statistic, the
less than 0.001
Refer to Question 4. The p-value is
The test is inconclusive.
Refer to Question 5. What is your conclusion?
.75
Refer to Question1. If you are testing to determine if Population 1 has a larger mean than Population 2, what is the value of the test statistic? Round your answer to three decimal places.
11.372
Refer to Questions 1 & 2 and use 19.48 as the degrees of freedom. What is the upper limit for the 95% confidence interval for the difference between the two population means? Round your answer to three decimal places.
.0278
Refer to Questions 1 and 2. Determine the value of the standard error of the difference in the proportions. Round your answer to four decimal places.
reject the null hypothesis
Refer to Questions 1 and 5. If alpha is .05, the correct conclusion is
average time of Process B is significantly greater than Process A.
Refer to Questions 1, 2 & 3. The appropriate conclusion is the
3.964
Refer to Questions 1, 2 and 3. What is the value of the test statistic? Round your answer to three decimal places.
.283
Refer to Questions 2 & 3. What is the p-value associated with the test statistic? Round your answer to three decimal places
.231
Refer to Questions 3 & 4, what is the p-value associated with the test statistic? Round your answer to three decimal places
7.92
Refer to Questions 4 & 5. What is the upper limit for a 95% confidence interval of the difference in the means? Round your answer to two decimal places.
new drug testing
The Statistics in Practice example in Chapter 10 identifies an application concerned with
U.S. Food & Drug Administration
The company identified in Chapter 10, Statistics in Practice is
matched samples
When each data value in one sample is matched with a corresponding data value in another sample, the samples are known as