Hypothesis testing-comparison of mean

Reference no: EM13110452

A study to see how well marital dissolution was predicted by the personality scores of husbands and wives was published in the Journal of Personality and Social Psychology. A random selection of 286 newlywed couples was made. After 5 years, 222 couples remained together and 64 had dissolved their marriages. The mean age of the husband in the 222 stable marriages was 30.47, and the standard deviation was 7.65. For the 64 unstable couples, the mean age of the husband was 29.64, and the standard deviation was 6.83. Test the hypothesis at the .01 level that there's no difference in the the population mean age of the husband in the two types of couples.

Reference no: EM13110452

Questions Cloud

How much revenue will it receive : What price should do you charge if it wants to maximize its revenue from this concert? And, how much revenue will it receive?

Hypothesis testing-population mean of student : Mean score on 10 item test for all students enrolled in a Traditional course was 9.64. A random sample of 41 students in Project Course is given same test

What could the healthcare team do to improve : Describe the care that Sue received. Why didn't the nurses who took care of her put themselves in her position and take better care of her?

Determine the time between orders : Hottenstein, Giffith, and Hult, attorneys at law, do a great deal of printing. The firm uses a single type of printer with annual demand for print cartridges of 480 per year.

Hypothesis testing-comparison of mean : A study to see how well marital dissolution was predicted by the personality scores of husbands and wives was published in the Journal of Personality and Social Psychology.

Determine proportion of employees who are managers : 37 percent of managers have MBA degrees. Using probability formulas. Determine the proportion of employees who are managers and have MBA degrees.

Test of hypothesis : The manager of a paint supply store wants to determine whether the mean amount of paint conatined in 1- gallon cans purchased from a nationally known manufacturer is actually 1 gallon.

Calculate annual holding cost plus the annual ordering cost : The current order quantity for Paul's Pasta Pinwheels is 200 boxes. The order cost is $4 per order, the holding cost is $0.40 per box per year, and the annual demand is 500 boxes per year.

Types of dependent samples : There are two types of dependent samples: Those that measure something before and after an "event" and those that matching two samples of the same phenomena being observed. Which of the following is NOT true about such a test:

User Account

All Pages