Question

Bags of a certain brand of tortilla chips claim to have a net weight of 14 ounces.  Net weights actually vary slightly from bag to bag and are normally distributed.  A representative of a consumer advocate group wishes to see if there is any evidence that the mean net weight is less than advertised. To do this, he selects sixteen bags of this brand at random and determines the net weight of each; the sample mean is 13.82 ounces and the standard deviation is 0.32 ounces.

Based on this data, we would

	A.	reject Ho at significance level 0.10 but not at 0.05.
	B.	reject Ho at significance level 0.025 but not at 0.01.
	C.	reject Ho at significance level 0.01.
	D.	reject Ho at significance level 0.05 but not at 0.025.

Answer 1