# Question

The table summarizes results of a crossover study to compare results of low-dose and high-dose analgesics for relief of menstrual bleeding (B. Jones and M. Kenward, Statistics in Medicine, vol. 6, 1987, pp. 555–564).

a. Find the sample proportion of successes for each dose of the analgesic.

b. Find the P-value for testing that the probability of success is the same with each dose, for a two-sided alternative. Interpret. What assumptions does this inference make?

a. Find the sample proportion of successes for each dose of the analgesic.

b. Find the P-value for testing that the probability of success is the same with each dose, for a two-sided alternative. Interpret. What assumptions does this inference make?

## Answer to relevant Questions

A poll by Louis Harris and Associates of 1249 Americans indicated that 36% believe in ghosts and 37% believe in astrology. a. Is it valid to compare the proportions using inferential methods for independent samples? ...The crude death rate is the number of deaths in a year, per size of the population, multiplied by 1000. a. According to the U.S. Bureau of the Census, in 1995 Mexico had a crude death rate of 4.6 (i.e., 4.6 deaths per 1000 ...A researcher predicts that the percentage of people who do not watch TV is higher now than before the advent of the Internet. Let p1 denote the population proportion of American adults in 1975 who reported watching no TV. ...Do women tend to spend more time on housework than men? If so, how much more? Based on data from the National Survey of Families and Households, one study reported the results in the table for the number of hours spent in ...Refer to the previous exercise. a. Show that the test statistic for H0: μ1 = μ2 equals t = 11.7. If the population means were equal, explain why it would be nearly impossible by random variation to observe this large a ...Post your question

0