Answer:
54.80 MPa to 55.92 MPa
Step-by-step explanation:
Sample mean fracture strength (x) = 55.36 MPa
Sample standard deviation (s) = 3.99 MPa
Sample size (n) = 196.
The upper and lower bounds for a 95% confidence interval are given by:

The upper and lower bounds of the confidence interval are;

The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa
Answer:
15
Step-by-step explanation:
(3/5)*25=15
Choose the one on the very top.
Answer:
0
Step-by-step explanation:
no number of tanks will hold the same amount of fish. 83 is a prime number, no numbers can be equally divided into it
<span>P(Z≥z)=p<span>% may help out... (:
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