Answer: (24.02,25.98)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given : Sample size : n= 100
Sample mean : 
Standard deviation : 
Significance level : 
Critical value : 
The confidence interval for population mean is given by :-

Hence, the 95% confidence interval for the population mean of training times is (24.02, 25.98).
Answer:
5
Step-by-step explanation:
If we consider half the first purchase, it is
2 used + 1 new = $42
And the second purchase is
6 used + 1 new = $78
Subtracting the first of these equations from the second, we get ...
4 used = $(78 -42) = $36
used = $9 . . . . . . . . . . . . . . divide by 4
Then we can find the price of a new game from ...
new = $42 - 2 used = $42 -2·9 = $24
___
The number of used games Janet can purchase on her budget is ...
($120 -3·$24)/$9 = $48/$9 = 5 1/3 ≈ 5
Janet can purchase 5 used and 3 new video games for $120. (and have $3 left)
180 degrees in a triangle. so 180-90-31=59
The answer is -43, you have to substitute in this question, the question would look like 4(-4)-3^3. Hopes this helps
Answer:
8*1+12+24*1
Step-by-step explanation: