mcourses / 1 2 3 82 3 2 / quizzes/ 1 20 70 30 /take Imported Beauté Pock ade in

Question

mcourses / 1 2 3 82 3 2 / quizzes/ 1 20 70 30 /take Imported Beauté Pock ade in USA Gold Foil P Made in USA Quiz: Final Exam Question 38 0.5 pts The purpose of completed data inspection and analysis is to determine the presence of "bad" respondents and to throw out the ones with severe problems O True O False Question 39 0.5 pts Sigma squared refers to which population parameter Mean O Variance Mode O Median Standard deviation Question 40 0.5 pts Outliers should not be more than--% of your data. Fill in the blank with a number) Question41 0.5 pts

Explanation / Answer

38) False

because the purpose of complete enumeration of the population is to study the whole population and then used it in various study in future.

39) Variance

Sigma is refer as standard deviation and sigma square is denoted for variance.

40) Outliers affect the result of the study so that Generally they are not more than 5% .

So answer is 5.

41) If we want to test "whether there is differences in the means of two groups"

then the null hypothesis in word is

H0: There is no difference between the population means of two groups.

And the alternative hypothesis in word is

H1: There is difference between the population means of two groups.

So if we fail to reject null hypothesis then the conclusion may be:

There does not exist the difference between the means of two groups.

So correct option is "A difference does not exist between the means of the two groups."

42) If we want to test "whether there is differences in the proportion of two groups"

then the null hypothesis in word is

H0: There is no difference between the population proportions of the two groups.

And the alternative hypothesis in word is

H1: There is difference between the population proportions of two groups.

So if we fail to reject null hypothesis then the conclusion may be:

There does not exist the difference between the proportion or percentage of two groups.

So correct option is "A difference does not exist between the percentage of the two groups."

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.