Consider the following results for two samples randomly taken from two populations.
Sample A
Sample B
Sample Size28
30
Sample Mean24
22
Sample Standard Deviation8
6
?
a.Determine the degrees of freedom for the t distribution.b.Develop a 95% confidence interval for the difference between the two population means.c.Is there conclusive evidence that one population has a larger mean? Explain.
What will be an ideal response?
?
| a. | 49 |
| b. | -1.753 to 5.753 |
| c. | No, because the interval ranges from negative to positive. |
You might also like to view...
Drilling equipment with a ten-year useful life is used solely in conjunction with an oil well that has an eight-year life. The equipment should be depreciated over eight years using the production method
Indicate whether the statement is true or false
Adaptive leadership conceptualizes the leader as one who ______.
A. solves problems for people B. adapts to various situations C. makes the hard decisions for others D. encourages others to do the problem solving
Which of the following is true with regard to securities regulation in foreign markets?
a. Anti-fraud provisions apply where there is conduct in the U.S. relating to a violation of the federal securities laws. b. Foreign issuers who issue securities must register them in the U.S. unless an exemption is available. c. No specific regulations are allowed because of the act of state of doctrine. d. None of these are true.
To gain authorization for hiring a foreign worker, an employer must show that no U.S. Worker is qualified, willing, and able to take the job
Indicate whether the statement is true or false