Answer:
No, it is not.
Step-by-step explanation:
comparing the two given values, 1.75 and 6, estimating 1.75 for 6 is not reasonable. This is due to the fact that converting 1.75 to the nearest whole number gives 2 which is far away from 6. Since,
6 - 2 = 4
So, estimating 1.75 for 6 would involve a large value of error. Which make it unreasonable. It would have been more reasonable to estimate 1.75 for 2.
The value of x (if it’s a side length) should be 6 inches
That means one whole is cut into 8 parts, and one of those eight parts is considered to be one-eighth of a whole
{think about it like a pizza with 8 slices]
Answer: The 95% confidence interval for the mean of x is (94.08, 101.92) .
Step-by-step explanation:
We are given that ,
A random variable x has a Normal distribution with an unknown mean and a standard deviation of 12.
i.e. 
Also, it is given that , Sample mean
having sample size : n= 36
For 95% confidence ,
Significance level : 
By using the z-value table , the two-tailed critical value for 95% Confidence interval :

We know that the confidence interval for unknown population mean
is given by :-

, where
= Sample mean
= Population standard deviation
= Critical z-value.
Substitute all the given values, then the required confidence interval will be :




Therefore, the 95% confidence interval for the mean of x is (94.08, 101.92) .
Answer:
A.
Step-by-step explanation: