Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Help please! The answers listed under d were cut off in the picture but the options for D are: a. The sample data must come

Help please! The answers listed under d were cut off in the picture but the options for D are: a. The sample data must come from a population that is normally distributed with no outliers b. The sample must come from a population that is normally distributed and the sample size must be largec. The sample size must be large and the sample should not have any outliers

image text in transcribed
A simple random sample of size n is drawn. The sample mean, x, is found to be 18 2, and the sample standard deviation, s, is found to be 4. 1. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about u if the sample size, n, is 34 Lower bound Upper bound (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about u if the sample size, n, is 51. Lower bound Upper bound (Use ascending order Round to two decimal places as needed.) How does increasing the sample size affect the margin of error, E? O A. The margin of error increases. O B. The margin of error does not change O C. The margin of error decreases. (c) Construct a 99% confidence interval about u if the sample size, n, is 34. Lower bound: Upper bound (Use ascending order Round to two decimal places as needed.) Compare the results to those obtained in part (a). How does increasing the level of confidence affect the size of the margin of error, E? O A. The margin of error does not change O B. The margin of error decreases. O C. The margin of error increases (d) If the sample size is 13, what conditions must be satisfied to compute the confidence interval? ()A The sample riata must come from a nonuilation that is normally distributed with no outliers Click to select your answer(s)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Trigonometry, Enhanced

Authors: Cynthia Y Young

4th Edition

1119321131, 9781119321132

More Books

Students also viewed these Mathematics questions