The average price of an item is $42 with a standard deviation of $3 Find a 90% confidence interval about the mean (one decimal place). Is the value of X=44 unusually high or is it normal?Choose correct explanation! a. (36.1,47.9) so 44 is normal b/c it is inside the interval b. (37.1, 46.9) so 44 is unusual b/c it is outside the interval. O c. (37.1, 46.9) so 44 is normal b/c it is inside the interval. O d. (37.1, 46.9) so 44 is unusual b/c it is inside the interval