Answer: 1.2703
Step-by-step explanation:
Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.
Significance level : 
Then , Critical value : 
Standard deviation: 
The formula to find the margin of error : -

Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703
P/2-5
14/2-5
7-5
2
the answer is 2
N^2 - n = 90
n^2 - n - 90 = 0
(n - 10)(n + 9) = 0
n - 10 = 0
n = 10
n + 9 = 0
n = -9
answer is : n = 10 and n = -9
Answer:
what exactly are you asking?..........