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A significance test is used to prevent a machine from under fulling or overfilling quart bottles. on the basis of a sample,the null hypothisis is rejected andthe machine is shut down for inspection. A thorough examination reveals there is nothing wrong with the filling machine.From a statistical standpoint,was there a type error made? If yes, which type? Explain?
During a meeting, one hospital administrator indicated that 70% of the geriatric patients are males. What is the sample proportion of male patients?
Test whether there is a difference in the mean of times men and women and determine the p-value.
Give an example of how you may use multiple regression to answer a question related to the impact of leadership change on employee attitudes scores, teambuilding training and performance outcomes.
A researcher looks at the effect of 3 different drugs on 3 different groups of 10 people. Numbers refer to stress levels, with lower numbers being lower stress.
For a candidate who guesses at all answers, find the mean and variance for the random variable X, the number of correct answers.
Determine the standard error of students that favoured the move.
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
At a = 0.01, can it be concluded that the variance of the areas for counties in Indiana is less than the variance of the areas for counties in Iowa?
Review the Christian year pie chart and write a summary in which you (a) describe the significance of the holy days on the chart.
If one NBA player is selected at random, find the probability that this player is either 7 feet tall or weighs over 200 pounds.
How many men and women are needed to generate a 95% confidence interval estimate for the difference in proportions with a margin of error not exceeding 4%?
10 people taste wine A and wine B, X= denote the number prefer A. Assume that all others prefer B. These people random sample..
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