Answer Happy

d- t- (2 points) (4 points) Write the formula for Error and show your calculations Label the curve (2 points) (4 points) Construct the Confidence interval for the Population Mean (2 points) Interpret: Minimum Sample Size: A researcher wanted to determine the mean number of hours per week (Sunday through Saturday) the typical person watches television. Results from the Statistics Survey indicate that s = 7.5 hours. (a) (5 points) How many people are needed to estimate the number of hours per week people watch television within margin of error of 2 hours with 95% confidence? (b) (5 points) How many people are needed to estimate the number of hours per week people watch televisio within margin of error of 1 hour with 95% confidence?

2. Robert wishes to estimate the mean number of miles that his Buick Lacrosse can be driven on a fallunk of gas. He fills up his car with regular unleaded gasoline from the same gas station 10 times and records the number of miles that he drives until his low-tank indicator light comes on. He obtains the data shown below. 323.9 326.8 370.6 450.7 368.8 343.1 423.8 398.8 417.5 3827 Miles driven Construct a 98% confidence interval for the mean number of miles driven on a full tank of gas. (2 points) Use the calculator function to find Mean and SD