A Garment Manufacturing Company Recorded the Amount of Time That

Short Answer

A garment manufacturing company recorded the amount of time that it took to make a pair of jeans on 8 different occasions. The times in minutes are as follows:
12.5, 13.0, 11.9, 10.2, 13.1, 13.6, 13.8, and 14.0.
Assume these measurements were taken from a population with a normal distribution. It is of interest to know if the sample data suggest that the average time it takes this company to make a pair of jeans is less than 13.5 minutes. Does the sample data support the alternative hypothesis at the = 0.05 level?
Test statistic = ______________
Critical Value(s) = ______________
Conclusion: ______________
Interpretation: The average time it takes this company to make a pair of jeans ______________ less than 13.5 minutes.
Construct a 95% confidence interval for the mean amount of time it takes this company to make a pair of jeans.
______________