Question

In a random sample of 28​ families, the average weekly food expense was​ $95.60 with a standard deviation of​ $22.50. determine whether a normal distribution or a​ t-distribution should be used or whether neither of these can be used to construct a confidence interval. assume the distribution of weekly food expenses is normally shaped.
a. cannot use normal distribution or​ t-distribution.
b. use the​ t-distribution.
c. use normal distribution.

Answer 1

F. For food stamps for