Aweb music store offers two versions of a popular song. the size of the standard version is 2.5 megabytes (mb). the size of the high-quality version is 4.4 mb. yesterday, the high-quality version was downloaded four times as often as the standard version. the total size downloaded for the two versions was 5427 mb. how many downloads of the standard version were there?

Amanufacturing firm has been averaging 16.8 orders per week for several years. however, during a recession, orders appeared to slow. suppose the firm’s production manager randomly samples 31 weeks and finds an average of 15.6 orders with a standard deviation of 2.3 orders. using a 0.025 significance level, test whether the mean number of orders has decreased. type the full 5 step procedure into the answer box, then for multiple choice practice, answer the following: 1. what is the name and symbol of the parameter that you are testing? 2. what is the symbol and value of the point estimate of that parameter? 3. what distribution are you using to test this parameter? 4. what is the critical value? 5. what is the test statistic value? 6. what is the p-value?