A college professor randomly selected one of her classes and timed, in minutes how long it took each of her 25 students to complete the exam. The confidence interval was used in Statcrunch in the picture A. What is the value of the point estimate for the confidence interval. Refer to the picture B. According to the output, what is the confidence interval? Round to two decimal place C. Identify the following statements true or false 1. 95% confidence interval means that 95% of the sample mean values will be within our interval. 2. Based on our confidence interval, it is believable that the parameter is 47 minutes 3. If we obtain a different sample of the same size our confidence interval will be different
A college professor randomly selected one of her classes and timed, in minutes how long it took each of her 25 students to complete the exam. The confidence interval was used in Statcrunch in the picture A. What is the value of the point estimate for the confidence interval. Refer to the picture B. According to the output, what is the confidence interval? Round to two decimal place C. Identify the following statements true or false 1. 95% confidence interval means that 95% of the sample mean values will be within our interval. 2. Based on our confidence interval, it is believable that the parameter is 47 minutes 3. If we obtain a different sample of the same size our confidence interval will be different
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
A college professor randomly selected one of her classes and timed, in minutes how long it took each of her 25 students to complete the exam. The confidence interval was used in Statcrunch in the picture
A. What is the value of the point estimate for the confidence interval. Refer to the picture
B. According to the output, what is the confidence interval? Round to two decimal place
C. Identify the following statements true or false
1. 95% confidence interval means that 95% of the sample mean values will be within our interval.
2. Based on our confidence interval, it is believable that the parameter is 47 minutes
3. If we obtain a different sample of the same size our confidence interval will be different

Transcribed Image Text:Options
One sample T summary confidence interval:
: Mean of population
95% confidence interval results
Mean Sample Mean Std. Ern. DE L Limit
U. Limit
51 1.807392214 47,123529 54.876471
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