Portage LearningMATH 110Module 5 Exam LATEST UPDATE GRADED A+

Portage LearningMATH 110Module 5 Exam LATEST
UPDATE GRADED A+




Module 5 Exam
Exam Page 1
Suppose that you take a sample of size 18 from a population that is not normally
distributed. Can the sampling distribution of xx be approximated by a normal
probability distribution?


No, the sampling distribution of xbar cannot be approximated by a normal probability
distribution because the population is "not normally" distributed and the sample size is
less than 30.


Suppose that you take a sample of size 18 from a population that is not normally
distributed. Can the sampling distribution of xx be approximated by a normal
probability distribution?


No. The population is not normally distributed, therefore, we need a sample size of at


Exam Page 2
Suppose that you are attempting to estimate the annual income of 1100 families. In
order to use the infinite standard deviation formula, what sample size, n, should you
use?


(n / N )
≤0.05 N =
1100


n ≤ (0.05 x 1100 ) = 55


n ≤ 55

Portage LearningMATH 110Module 5 Exam LATEST
The sample size (n) has to be less than or equal to 55

UPDATE GRADED A+
Suppose that you are attempting to estimate the annual income of 1100 families. In
order to use the infinite standard deviation formula, what sample size, n, should you

, Portage LearningMATH 110Module 5 Exam LATEST
UPDATE GRADED A+




Portage LearningMATH 110Module 5 Exam LATEST
UPDATE GRADED A+