Answer:
I did not get this one right, but I will tell you that I know a lot of people, including me who put:
B and D.
Those two together are NOT right. and the other question I got wrong was number 5. That answer is not D. So don't put that. Everything else, I got correct.
Step-by-step explanation:
x=5
14x5= 70
70-21=49
this is how I got the answer
B. Because it’s acute angle facing down towards bottom
The answer is A hope this helps
Answer: (1.64,4.01)
Step-by-step explanation:
The confidence interval for the population variance is given by :-
Given : n= 69 ;
Significance level :
Using Chi-square distribution table ,
[by using chi-square distribution table]
Now, the 95% confidence interval for the standard deviation of the height of students at UH is given by :-
Hence, the 99% confidence interval for the population variance of the weights of all axles in this factory is (1.64,4.01).