Answer Happy

Question 25 2.5 pts 22SP A random sample of the number of online purchases that four students made in a month is 9.5.3, 7. Construct a 90% confidence interval for the true mean number of online purchases made. Round to two decimals if necessary. Canvas ik O (3.89 purchases, 8.11 purchases) O (2.96 purchases, 9.04 purchases) O (-1.84 purchases, 13.84 purchases) 0 (0.55 purchases, 11.45 purchases) cements Question 26 2.5 pts The units of the coefficient of variation when the units are gallons are O gallons squared O gallons O no units. O the absolute value of gallons. Question 27 2.5 pts Standard deviation of lemonade sales = 24 dollars Standard deviation of fudge bar sales = 20 dollars Correlation = 0.70 If we are predicting fudge bar sales from lemonade sales, the regression coefficient is 0.84. O True False