A car salesperson had $79,327 in total monthly sales in June and $88,798 in July. The salesperson earned $3,890 in commission from those combined sales. What is the salesperson's commission as a percent of total sales for the two months? Enter your answer, rounded to the nearest tenth of a percent, in the box. %

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

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?