Hypothesis testing and confidence interval procedures

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Reference no: EM132630126

CASE STUDY

Suppose that you work in a shoe company want to compare two materials, A and B, for use on the soles of boys' shoes. In this problem, each of ten boys in a study wore a special pair of shoes with the sole of one shoe made from Material A in column (Mat-A) and the sole on the other shoe made from Material B in column (Mat-B). The sole types were randomly assigned to account for systematic differences in wear between the left and right foot. After three months, the shoes are measured for wear. See attached excel file on tab (shoe)

• Weight measurements were made on nine boys in column (weight lb). You know that the distribution of measurements has historically been close to normal with = 0.2. Test if the population mean is 50 and obtain a 90% confidence interval for the mean. - (Solve manually and Minitab)

• You want to see if these is difference between the two materials. Justify your answers by using hypothesis testing and confidence interval procedures. - (Solve manually and Minitab)

• Compare the results from the paired procedure with those from an unpaired- (Solve manually and Minitab)

Reference no: EM132630126

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