A selection process to be set in a position in GM company. Candidates are requested to complete an aptitude test. The results from the test are assumed to follow a normal distribution with standard deviation, equal to 1.5. A simple random sample of 16 results from the test has a sample mean of 4.2. You are given a confidence interval computed by a researcher for the preceding data, going from 3.83 to 4.57. Which confidence level was used to compute this interval? 82.3% O 74.58% O 78.14% O 67.78%

A selection process to be set in a position in GM company. Candidates are requested to complete an aptitude test. The results from the test are assumed to follow a normal distribution with standard deviation, equal to 1.5. A simple random sample of 16 results from the test has a sample mean of 4.2. You are given a confidence interval computed by a researcher for the preceding data, going from 3.83 to 4.57. Which confidence level was used to compute this interval? 82.3% O 74.58% O 78.14% O 67.78%

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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A selection process to be set in a position in GM company. Candidates are requested to
complete an aptitude test. The results from the test are assumed to follow a normal
distribution with standard deviation, equal to 1.5. A simple random sample of 16 results
from the test has a sample mean of 4.2.
You are given a confidence interval computed by a researcher for the preceding data,
going from 3.83 to 4.57. Which confidence level was used to compute this interval?
82.3%
O 74.58%
78.14%
67.78%

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