A particular weightloss company claims that the average weight a
A particular weightloss company claims that the average weight a
A particular weightloss company claims that the average weight a person lost after two weeks on its program is 5 lbs. The following data represent the weight loss of 36 randomly selected adults who have been on the program for two weeks. Negative values represent weight gains (oops!). These data can also be found in the Excel file normal weight loss.xlsx.
a. Using α = 0.05, perform a chisquare test to determine if the weight loss after two weeks on this program follows a normal probability distribution when μ = 5.0 and s = 4.0.
b. Determine the pvalue using Excel and interpret its meaning.