Question: Suppose, for a sample selected from a population, = 25.5 and s = 4.9. a. Construct a 95% confidence interval for assuming n

Suppose, for a sample selected from a population, = 25.5 and s = 4.9.
a. Construct a 95% confidence interval for µ assuming n = 47.
b. Construct a 99% confidence interval for µ assuming n = 47. Is the width of the 99% confidence interval larger than the width of the 95% confidence interval calculated in part a? If yes, explain why.
c. Find a 95% confidence interval for µ assuming n = 32. Is the width of the 95% confidence interval for µ with n = 32 larger than the width of the 95% confidence interval for µ with n = 47 calculated in part a? If so, why? Explain.

Step by Step Solution

★★★★★

3.48 Rating (181 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

n 47 255 s 49 s s n 49 47 71473846 and df n 1 47 1 46 a 2 5 952 025 and t 2013 The 95 co... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

492-M-S-P-E (580).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A sample selected from a population gave a sample proportion equal to .73. a. Make a 99% confidence interval for p assuming n = 100. b. Construct a 99% confidence interval for p assuming n = 600. c....

A sample selected from a population gave a sample proportion equal to .31. a. Make a 95% confidence interval for p assuming n = 1200. b. Construct a 95% confidence interval for p assuming n = 500. c....

Suppose, for a sample selected from a normally distributed population, 68.50 and s = 8.9. a. Construct a 95% confidence interval for assuming n = 16. b. Construct a 90% confidence interval for ...

8.49 Suppose, for a sample selected from a population, 25.5 and s 4.9. a. Construct a 95% confidence interval for assuming n 47. b. Construct a 99% confidence interval for assuming n 47. Is the...

STATISTICS FOR DECISION MAKING Dr. Azar Abizada HOMEWORK 4 Due Date: Wednesday, March 11th class time Problem 1 (26 points): Be careful, each part of this question is independent of one another. a)...

Home - Netflix X Logout - Time X S Shop Trendy V X Hurry! Iter x Disney+ IN elearning.kctcs.edu/ultra/courses/_493658170_1/outline/assessment/_43252623_1/overview/attempt/_97920047_1?courseld=_ 109...

Hello, please just answer the questions that you are sure about!!! 1) Cameron Sinclair, Information Services Manager with Global Financial Service (GFS), is studying employee use of GFS email for...

Regression Analysis Assignment As in the past, your homework solutions should consist of a single Word document that you submit via Learn You will be penalized if your submission is not...

Need step by step answer:- Eye shadow, mascara, and nickel allergies. Pigmented makeup products like mascara and eye shadow may contain metal (e.g., nickel) allergens. Is a nickel allergy more likely...

test scores 69 57 55 63 48 56 59 58.1428571 13.8868/6=2.3145 (10 points) A firm that installs large computers has introduced a new training course for installers. The first class of seven has just...

a. What is the probability distribution of a discrete random variable? b. How do you find the mean of a discrete random variable? How do you interpret the result? c. How do you find the standard...

Explain the difference between value at risk and expected shortfall.

0 : 3 6 : 0 6 elapsed iz 2 1 7 1 8 Question 2 7 ( 1 point ) Export / import financing in which a bank acts as an intermediary without accepting 2 0 2 1 financial risk is called A ) documentary...

Altered Version of Logarithmic Preferences Alter Example 8.1 as follows, Assume that u[ch(t), c(t + 1)] In[c (t) + a] + In[c(t + 1) + 2],

The enrollments in an elementary algebra course at the College of San Mateo are shown in Table 13 for various Tuesdays leading up to the first day of class on Tuesday, January 17. Let E be the...

The percentages of births outside marriage in the United States are shown in Table 14 for various years. Let p be the percentage of births outside marriage in the United States at t years since 1900....

Repeat Exercise 11, but let p be the percentage of births outside marriage in the United States at t years since 1970. Compare the slope of your model with the slope of the model you found in...

You expect to receive $ 1 5 , 0 0 0 at graduation in two years. You plan on investing it at 7 percent until you have $ 9 5 , 0 0 0 . How long will you wait from now? Multiple Choice 2 7 . 2 8 years 3...

Let S - $45,8% (continuously compounded), 6-5%, 0-40%, T - 2. In this situation, the appropriate values of u and d are 1.53726 and 0.69073, respectively. Using a 2-step binomial tree, calculate the...

suppose that you borrow 1 , 0 0 0 . 0 0 for my friend and you promised to pay back $ 1 , 4 0 0 . 0 0 2 years what's simple interest rate will you pay