Question: The percentages of adults 25 years of age and older
The percentages of adults 25 years of age and older who have completed 4 or more years of college are 23.6% for females and 27.8% for males. A random sample of women and men who were 25 years old or older was surveyed with these results. Estimate the true difference in proportions with 95% confidence, and compare your interval with the Almanac statistics.
Relevant QuestionsFind the proportions and for each. a. n = 48, X = 34 b. n = 75, X = 28 c. n = 100, X = 50 d. n = 24, X = 6 e. n = 144, X = 12 The overall U.S. public high school graduation rate is 73.4%. For Pennsylvania it is 83.5% and for Idaho 80.5%—a difference of 3%. Random samples of 1200 students from each state indicated that 980 graduated in ...A random sample of daily high temperatures in January and February is listed below. At α = 0.05 can it be concluded that there is a difference in variances in high temperature between the two months? a. State the hypotheses ...Two portfolios were randomly assembled from the New York Stock Exchange, and the daily stock prices are shown below. At the 0.05 level of significance, can it be concluded that a difference in variance in price exists ...In the hospital study cited previously, the standard deviation of the noise levels of the 11 intensive care units was 4.1 dBA, and the standard deviation of the noise levels of 24 nonmedical care areas, such as kitchens and ...
Post your question