Question

Please help
WILL MEDAL
Suppose that a company claims that its air fresheners last 19 days, on average. You take many large samples, and find, each time, that the mean number of days of the sample is outside the 95% confidence interval. Based on this information alone, which of the following is probably not the mean number of days that the company's air fresheners last?
a. 17
b. 15
c. 19
d. 13

Answer 1

@satellite73

Answer 2

c. 19

one thing for sure is that if it's outside the confidence level theres no way it can be the number they first predicted

Answer 3

Thank you @dtan5457