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state the hypothesis and identify the claim
a. There is less than 7 beds per house in Compton; Decision in to reject the null hypothesis
b. 30 % of Americans go to church on Sundays. Decision is not to reject the null hypothesis
Statistics and Probability, Statistics
The average number of pages in a novel is 326 with a standard deviation of 24 pages. If a sample of 50 novels is randomly chosen, what is the probability the average number of pages in these books is between 319 and 331?
A car salesmen claims that a particular make of a car would give a mean mileage of greater than 20mpg. If I ran 10 cars on one gallon of gas each and came up with 10 different results, what statistical formula would I us ...
Twenty years ago 40 children were born in the same hospital in Denmark. Researchers classified the children by whether or not they were breast-fed for at least 3 months. They were interested in whether breast-feeding ten ...
Name and explain the contributions of three Abolitionists that supported and helped African Americans before the Civil War fight slavery?
In your own words! Question 1: Critique and expand upon the statement: Every college graduate should understand the basic principles of the Operations function of a business. Question 2: Identify three current trends in ...
Peggy wants to know if her pack of cookies was statistically different from those of the rest of the class. She found out the average number of chips per cookie this year was 13.82 and the standard deviation for the clas ...
1. What is validity? 2. Distinguish between face validity, construct validity, and criterion-related validity. In general, which kind of validity is least important to researchers? 3. Can a measurement procedure be valid ...
According to a recent poll, 29% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major conce ...
The bad debt ratio for a financial institution is defined to be the dollar value of loans defaulted divided by the total dollar value of all loans made. A random sample of six Ontario banks is selected and the bad debt r ...
1. Why must researchers ensure that their experimental groups are roughly equivalent before manipulating the independent variable? 2. Discuss the relative advantages and disadvantages between within-subjects designs and ...
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