ajalove7965 ajalove7965

21-10-2022
Mathematics

Answered

according to the national retail federation, 34% of taxpayers used computer software to do their taxes. a sample of 125 taxpayers was selected. 4. what is the distribution of the sample proportion of the 125 taxpayers that used the computer software to do their taxes? a. n(0.34, 0.0424) b. n(0.34, 82.5) 5. what is the probability that between 28% and 40% of the taxpayers from the sample of 125 used computer software to do their taxes? a. pnorm(0.4,0.34,0.0424)-pnorm(0.28,0.34,0.0424) b. pnorm(0.4,0.34,125)- pnorm(0.28,0.34,125)

Answer :

Other Questions

historically, a part's length has been normally distributed with a mean of 4.5 inches and a standard deviation of 0.12 inches. suppose that we take samples of s

for the given scenario, determine the type of error that was made, if any. (hint: begin by determining the null and alternative hypotheses.) a software company

g researchers are concerned about the rising prevalence of caesarian section undergone by pregnant women across the country. suppose that national statistics as

The United States Department of Agriculture (USDA) found that the proportion of young adults ages 20–39 who regularly skip eating breakfast is 0.238 . Suppose t

mnm corporation gives each of its employees an aptitude test. the scores on the test are normally distributed with a mean of 75 and a standard deviation of 15.

is housework hazardous to your health? a study in public health report compares the life expectancies of 25-year-old white women in the labor force with those w

answer the following concept questions in 1-3 sentences each. (a) is a sample mean likely to be exactly equal to the population mean? explain why or why not. (b