Question

Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 79 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 6.5 and a standard deviation of 2.8. What is the 99% confidence interval for the number of chocolate chips per cookie for Big Chip cookies? Enter your answers accurate to 4 decimal places. [ , ] (Report and round to 4 decimal places)

Use the data values in the table below to calculate the correlation, r, between the variables x and y. Hint: Use technology to do this...you do not need to compute this by hand. x y 3 15.94 4 19.52 5 17.1 6 20.08 7 22.66 8 21.24 9 22.62 10 26.3 Give your answer to rounded three decimal places. r =

Answer 1