Answer:
A
Step-by-step explanation:
Answer:
95% confidence interval: (2.784,3.176)
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 25
Sample mean = $2.98
Standard error = $0.10
Alpha = 0.05
95% confidence interval:
Putting the values, we get,
If it gives you your total, and another number, divide the 2
example:
25 • x = 75
75/25= 3
x=3