Answer:
a) 98% confidence interval for the mean amount of money spent by all visitors to this theme park
($130.77, $153.23)
Step-by-step explanation:
<u>Explanation</u>:-
Given sample size 'n' = 100
Given the average of $142 on the trip with a standard deviation of $47.50
mean of the sample (x⁻) = $142
standard deviation σ = $47.50.
<u>Confidence intervals</u>:-
The 98% of confidence intervals
on calculation, we get
($130.95 , 153.04)
The confidence intervals are ($130.95 , 153.04)
<u>Final answer:</u>-
Its nearly the given option its (a)
($130.77, $153.23)