Do women tend to spend more time on housework than men? If so, how much more? A study reported the results shown in the table to the right for the number of hours spent on housework per week. Complete parts a through d below. Housework Hours Gender Sample Size Mean Standard Deviation Women 474 32.1 18.8 Men 491 18.1 13.6 > (this is what i need help with) > The 95% confidence interval for (μW−μM) is from __ to __
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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Do women tend to spend more time on housework than men? If so, how much more? A study reported the results shown in the table to the right for the number of hours spent on housework per week. Complete parts a through d below.
|
|
|
Housework Hours
|
|---|---|---|---|
|
Gender
|
Sample Size
|
Mean
|
Standard
Deviation
|
|
Women
|
474
|
32.1
|
18.8
|
|
Men
|
491
|
18.1
|
13.6
|
> (this is what i need help with)
> The 95% confidence interval for (μW−μM) is from __ to __
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