Pond’s Age-Defying Complex, a cream with alpha hydroxy acid,

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Pond’s Age-Defying Complex, a cream with alpha hydroxy acid, advertises that it can reduce wrinkles and improve the skin. In a study published in Archives of Dermatology (recent year), 33 middle-aged women used a cream with alpha hydroxy acid for 22 weeks. At the end of the study period, a dermatologist judged whether each woman exhibited skin improvement. The results for the 33 women are listed below.

Improved	Improved	No improvement	Improved
No improvement	No improvement	Improved	Improved
Improved	Improved	Improved	Improved
No improvement	Improved	Improved	Improved
No improvement	Improved	Improved	Improved
No improvement	Improved	No improvement	Improved
Improved	Improved	Improved	Improved
Improved	No improvement	Improved	Improved
No improvement

a) MINITAB Output. Enter these data into a MINITAB worksheet all in one column. Use Skin Cream as your header. Select Stat > Basic Statistics > 1- Proportion… Complete the dialog in order to obtain a 97 percent confidence interval. b) Based on the 97% confidence interval for women exhibiting no improvement, do you have sufficient evidence to conclude that the cream will improve the skin of more than 60% of middle-aged women? Explain