![subject](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 21:10 melisa18
MATH 100 ELEMENTARY PROBATILITY AND STATISTICS EXAM 2 IA. A sample of 21 first year night-school students' ages is obtained in order to estimate the mean age of night school students. The study yielded the sample mean of x 24.5 years, Assume that the age of the night-school students is normally distributed with the standard deviation of 16.7. (a) Which approximation is more appropriate in this problem, % or t? Be sure to justify your rouponse . (5 points)
(b) Estimate the 95% confidence interval of the mean age. Be sure to justify all steps graphically and analytically. (10 points)
1B. Does the sample study of Problem 1A yield sufficient evidence to declare the mean age of the first year night students exceed 23.0?
(c) Set up the appropriate hypotheses. (5 points)
(d) Test the hypotheses with the significance level of a = 0.05. Be sure to justify all steps graphically and analytically. (10 points)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:00, holaadios222lol
Which expression is equivalent to? assume x > 0 and y > 0.
Answers: 1
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30, bvaughn4152
The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.
Answers: 1
You know the right answer?
MATH 100 ELEMENTARY PROBATILITY AND STATISTICS EXAM 2 IA. A sample of 21 first year night-school stu...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.05.2020 09:58
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.05.2020 09:58
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.05.2020 09:58
![Konu](/tpl/images/cats/istoriya.png)
History, 24.05.2020 09:58
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.05.2020 09:58
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.05.2020 09:58