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A random sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.09 hours, with a standard deviation of 2.47 hours. A random sample of 40 adults with children under the age of 18 results in a mean daily leisure time of 4.15 hours, with a standard deviation of 1.69 hours. Construct and interpret a 95% confidence interval for the mean difference in leisure time between adults with no children and adults with children left parenthesis mu 1 minus mu 2 right parenthesis(μ1-μ2).
Let μ1 represent the mean leisure hours of adults with no children under the age of 18 and μ2 represent the mean leisure hours of adults with children under the age of 18.The 95%confidence interval for left parenthesis mu 1 minus mu 2 right parenthesis(μ1-μ2)is the range from () hours to () hours.
Analyze (T Test), Analyze (Chi Square), Improve (DOE), Improve (Scatter Diagram), Scatter, Control (XmR Chart), and Control (Pp Ppk) from the manufacturing project?
What is the probability both stocks appreciate during the period? What is the probability the bank stock appreciates but the utility does not? What is the probability at least one of the stocks appreciates?
At the .05 significance level, can we conclude that the guideline is still reasonable?
In an article in the Journal of Management, Morris, Avila and Allen studied innovation by surveying firms to find the number of new products introduced by the firms.
If 1.5 million X-Games were sold over the holidays, determine an interval for the number of defectives in sales. 12,184 to 32,816.
the alphacor company experiences some type of failure on its computer network on average once every 4 hours. assume
There used to be an ad on TV that claimed one toothpaste was proven to be more effective in fighting tooth decay than another. One of statistics professors was interested in the study, and after 6 ads finally got the address to write away for it f..
Find all payments and the outstanding balances at the end of each year, until the loan is fully discharged. Balances should be calculated after the payment due at the particular time is made.
A researcher uses hypothesis test to estimate H0 µ= 80. Which combination of factors is most probable to result in rejecting null hypothesis?
A study of the effects of 3 components A, B, and C on the etched grid line width in a photolithography process was carried out using a 23 factorial design with the following levels of each factor:
an experiment consists of drawing one marble from a box that contains a mixture of red white and blue marbles.1.
Assume if the students toss the coin 200 times each about 68% should have proportions among what two numbers.
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