Answer Happy

potato chip company wants to evaluate the accuracy of its potato chip bag-filling machine. Bags are labeled as containing 8 ounces of potato chips. A simple aandom sample of 12 bags had mean weight 8.16 ounces with a sample standard deviation of 0.2 ounce. Assume the weights are approximately normally istributed. Construct a 90% confidence interval for the population mean weight of bags of potato chips. Round the answers to at least two decimal places. A 90% confidence interval for the mean welght of bags of potato chips is <<

A sample of size - 31 has sample mean x = 58 and sample standard deviation s=5.3. Part: 0/2 Part 1 of 2 (a) Construct a 99% confidence interval for the population mean . Enter the values for the lower and upper limits and the mean to graph. Round the answers to one decimal place. 99% confidence interval 450 LO 545 64.0 45.0

A test was made of H:=59 versus H:> 59. The P-value was 0.01 What does the P-value indicate? 1-59, then the probability of observing a test statistic as extreme or more extreme than the one actually observed is

High Cholesterol: A group of five individuals with high cholesterol fevels were given a new drug that was designed to lower cholesterol levels. Cholesterol levels, in milligrams per deciliter (mg/dL), were measured before and after treatment for each individual, with the following results: Subject Before After 1 163 125 2 169 139 3 183 135 155 126 5 168 136 4 Send data to Excel Part: 0/2 Part 1 of 2 (a) Construct a 99% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before the new drug minus the cholesterol level after the new drug. Use the T1-84 Plus calculator and round the answers to one decimal place A 99% confidence interval for the mean reduction in cholesterol level is