Kardal used the trend line to predict that a man 72
inches tall would wear about a size 10.5 shoe. What
can be concluded about this prediction? Check all that
apply.
The prediction is not reasonable.
The prediction is an interpolation.
No data is given in the scatterplot for a height of 72
inches, but a shoe size can still be predicted.
A prediction cannot be made without the linear
regression equation.
A 72-inch tall man will wear a size 11.5 shoe.

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?