I'm guessing the answer is 6in.
because the original width of the photo is 8in-4in
which is 4in.
and 8 to 10 is a difference of 2
so add 2 to 4
its 6
Answer:
77.53
Step-by-step explanation:
Sample size (n) = 15
Sample mean (μ) = 75
Sample variance (V) = 25
Sample standard deviation (σ) = 5
For a 95% confidence interval, z-score = 1.960
The upper limit of the confidence interval is defined as:

Therefore, the upper limit of the 95% confidence interval proposed is 77.53.