A random sample of 15 statistics tutorials was selected from the past 5 years, and the percentage of students absent from each one was recorded. The results are given below. Assume the percentages of students' absences are approximately normally distributed. Use a TI-83, TI-83 plus, or TI-84 calculator to estimate the mean percentage of absences per tutorial over the past 5 years with 90% confidence. Round your answers to two decimal places and use increasing order. Number of Absences 10.8 12.5 9.0 17.2 16.5 12.2 10.9 12.0 13.4 11.7 7.9 10.1 13.2 10.4 15.8

A random sample of 15 statistics tutorials was selected from the past 5 years, and the percentage of students absent from each one was recorded. The results are given below. Assume the percentages of students' absences are approximately normally distributed. Use a TI-83, TI-83 plus, or TI-84 calculator to estimate the mean percentage of absences per tutorial over the past 5 years with 90% confidence. Round your answers to two decimal places and use increasing order. Number of Absences 10.8 12.5 9.0 17.2 16.5 12.2 10.9 12.0 13.4 11.7 7.9 10.1 13.2 10.4 15.8

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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Concept explainers

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.

Question

A random sample of 15 statistics tutorials was selected from the past 5 years, and the percentage of students absent from
each one was recorded. The results are given below. Assume the percentages of students' absences are approximately
normally distributed. Use a TI-83, TI-83 plus, or TI-84 calculator to estimate the mean percentage of absences per tutorial
over the past 5 years with 90% confidence. Round your answers to two decimal places and use increasing order.
Number of Absences
10.8
12.5
9.0
17.2
16.5
12.2
10.9
12.0
13.4
11.7
7.9
10.1
13.2
10.4
15.8

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