(a) Perform the appropriate hypothesistest to determine if the use of the passive solar heating device can be attributed to lower monthly heating expenses
Assume a significance level of 2%.
(b)Assume that the solar heating equipment costs $3,000 to buy and install. Using the appropriate98% confidence interval, calculate how many years it will take you to “break even” if you make this investment (ignore the Time Value Of Money)
"Get 15% discount on your first 3 orders with us" Use the following coupon FIRST15