Question

# Suppose we would like to estimate the mean amount of money (μ) spent on clothing by...

Suppose we would like to estimate the mean amount of money (μ) spent on clothing by female McGill students in the last month. A random sample of 14 university women spending is: {200,200,100,100,200,200, 250,150,80,80,20,50,100,350}. Assume that the amount spent on cloths is normally distributed. Compute 95% and 99% confidence interval for μ.

4- Following exercise 3 we asked a random sample of 19 university men to estimate how much they spent on clothing in the last month. The data is {175,150,100,100,200,200,200,100,0,200,80,100,120,80, 25,50,100,30,60}. Test the hypothesis that the population mean-amounts spent on clothes are different for men and women. Use a significant level of 0.05 and 0.01. Assume that the distributions of amount spending are approximately Normal.

at a significance level of 0.05 the test the hypothesis that the population mean amount spent on cloths are different for men and women (-3442.26,3362.998) and at 0.01 (-4959.9658,4880.7038) by assuming of amount spending are approximately normal.

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