What is the sample mean in hours per week?__ hours per weekWhat is the test statistic? (Round your answer to three decimal places.)_____What is the p-value? (Round your answer to four decimal places.)p-value = ____ It is reported that the time married men with children spend on child care averages 6.5 hours per week. You belong to a professional group on family practices that would like to do its own study todetermine if the time married men in your area spend on child care per week differs from the reported mean of 6.5 hours per week. A sample of 40 married couples will be used with the data collectedshowing the hours per week the husband spends on child care. The sample data are contained in the file Child Care.7.38.25.89.06.5 7.77.2 9.47.6 68.8.37.9 7.05.8 3.69.7 6.2 8.77.5 5.4 8.0 9.49.8 9.04.56.2 4.7 0.66.3 3.8 8.1 7.0 7.611.47.511.20.67.98.32.3 7.0

The formula of the test statistic is,

Answered: What is the sample mean in hours per…

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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Related questions

Question

What is the sample mean in hours per week?

__ hours per week

What is the test statistic? (Round your answer to three decimal places.)

_____

What is the p-value? (Round your answer to four decimal places.)

p-value = ____

It is reported that the time married men with children spend on child care averages 6.5 hours per week. You belong to a professional group on family practices that would like to do its own study to
determine if the time married men in your area spend on child care per week differs from the reported mean of 6.5 hours per week. A sample of 40 married couples will be used with the data collected
showing the hours per week the husband spends on child care. The sample data are contained in the file Child Care.
7.3
8.2
5.8
9.0
6.5 7.7
7.2 9.4
7.6 68.
8.3
7.9 7.0
5.8 3.6
9.7 6.2 8.7
7.5 5.4 8.0 9.4
9.8 9.0
4.5
6.2 4.7 0.6
6.3 3.8 8.1 7.0 7.6
11.4
7.5
11.2
0.6
7.9
8.3
2.3 7.0

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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