You are interested in finding a 95% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 12 randomly selected college students. Round answers to 3 decimal places where possible. 101261211764128127 a. To compute the confidence interval use a distribution.b. With 95% confidence the population mean number of days of class that college students miss is between and days.c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of missed class days and about percent will not contain the true population mean number of missed class days. You are interested in finding a 95% confidence interval for the average number of daysof class that college students miss each year. The data below show the number ofmissed days for 12 randomly selected college students. Round answers to 3 decimalplaces where possible.10 12 6 12 11 7 6 4 12 8 12 7a. To compute the confidence interval use a ? ✓ distribution.b. With 95% confidence the population mean number of days of class that collegestudents miss is betweenanddays.c. If many groups of 12 randomly selected non-residential college students aresurveyed, then a different confidence interval would be produced from each group.Aboutpercent of these confidence intervals will contain the true populationpercent will not contain themean number of missed class days and abouttrue population mean number of missed class days.

(a) The type of study used is determined below as follows: To compute the 95% confidence interval…

Answered: You are interested in finding a 95%…

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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You are interested in finding a 95% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 12 randomly selected college students. Round answers to 3 decimal places where possible.

a. To compute the confidence interval use a distribution.

b. With 95% confidence the population mean number of days of class that college students miss is between and days.

c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of missed class days and about percent will not contain the true population mean number of missed class days.

You are interested in finding a 95% confidence interval for the average number of days
of class that college students miss each year. The data below show the number of
missed days for 12 randomly selected college students. Round answers to 3 decimal
places where possible.
10 12 6 12 11 7 6 4 12 8 12 7
a. To compute the confidence interval use a ? ✓ distribution.
b. With 95% confidence the population mean number of days of class that college
students miss is between
and
days.
c. If many groups of 12 randomly selected non-residential college students are
surveyed, then a different confidence interval would be produced from each group.
About
percent of these confidence intervals will contain the true population
percent will not contain the
mean number of missed class days and about
true population mean number of missed class days.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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