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The state test scores for 12 randomly selected high school seniors are shown on the right Complete parts (a) through (e) below. 1424 1220 980 694 729 836 723 621 Assume the population is normally distributed. 744 540 1442 942 .... (a) Find the sample mean. x= (Round to one decimal place as needed.)

The state test scores for 12 randomly selected high school seniors are shown on the right Complete parts (a) through (e) below. 1424 1220 980 694 729 836 723 621 Assume the population is normally distributed. 744 540 1442 942 .... (a) Find the sample mean. x= (Round to one decimal place as needed.)

MATLAB: An Introduction with Applications
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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Please find stanard deviation and 99% confidence interval for the population 

**State Test Scores Data Analysis** The state test scores for 12 randomly selected high school seniors are presented below. Assume the population is normally distributed. Your task is to complete parts (a) through (c). **Scores:** - 1424 - 1220 - 980 - 694 - 729 - 836 - 723 - 744 - 540 - 621 - 1442 - 942 **Tasks:** (a) **Find the sample mean.** - Compute the average of the test scores. The formula for the sample mean (\(\bar{x}\)) is the sum of the scores divided by the total number of scores. - Round your answer to one decimal place as needed. Use the data provided to calculate the mean and ensure your calculations are accurate. This task involves skills in basic statistical analysis and understanding of normally distributed data.
Transcribed Image Text:**State Test Scores Data Analysis** The state test scores for 12 randomly selected high school seniors are presented below. Assume the population is normally distributed. Your task is to complete parts (a) through (c). **Scores:** - 1424 - 1220 - 980 - 694 - 729 - 836 - 723 - 744 - 540 - 621 - 1442 - 942 **Tasks:** (a) **Find the sample mean.** - Compute the average of the test scores. The formula for the sample mean (\(\bar{x}\)) is the sum of the scores divided by the total number of scores. - Round your answer to one decimal place as needed. Use the data provided to calculate the mean and ensure your calculations are accurate. This task involves skills in basic statistical analysis and understanding of normally distributed data.
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