# Question: Home Mail Corporation sells products by mail The company s management

Home Mail Corporation sells products by mail. The company’s management wants to find out if the number of orders received at the company’s office on each of the 5 days of the week is the same. The company took a sample of 400 orders received during a 4-week period. The following table lists the frequency distribution for these orders by the day of the week.

Test at a 5% significance level whether the null hypothesis that the orders are evenly distributed over all days of the week is true.

Test at a 5% significance level whether the null hypothesis that the orders are evenly distributed over all days of the week is true.

## Answer to relevant Questions

Of all students enrolled at a large undergraduate university, 19% are seniors, 23% are juniors, 27% are sophomores, and 31% are freshmen. A sample of 200 students taken from this university by the student senate to conduct a ...Consider the following contingency table, which is based on a sample survey. a. Write the null and alternative hypotheses for a test of independence for this table. b. Calculate the expected frequencies for all cells, ...A forestry official is comparing the causes of forest fires in two regions, A and B. The following table shows the causes of fire for 76 randomly selected recent fires in these two regions. Test at a 5% significance level ...A sample of certain observations selected from a normally distributed population produced a sample variance of 46. Construct a 95% confidence interval for σ2 for each of the following cases and comment on what happens to ...The manufacturer of a certain brand of light bulbs claims that the variance of the lives of these bulbs is 4200 square hours. A consumer agency took a random sample of 25 such bulbs and tested them. The variance of the lives ...Post your question