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For each of the following, identify the independent variable(s), the dependent variable(s), and the level of measurement (nominal, ordinal, scale)
a. The number of loads of laundry washed per month was tracked for women and men living in college dorms.
b. A researcher interested in people's need to maintain their social image collected data on the number of miles on someone's car and his or her rank for "need for approval" out of the 183 people studied.
c. A professor of social science was interested in whether involvement in campus life is significantly impacted by whether a student lives on or off campus and 37 students living off campus were asked whether they were an active menber of a club.
Assign a reasonable numerical probability to the statement "Rain is very likely tonight." How likely is an event that has a 0.65 probability?
Out of a random sample of 33 women, 23 ranked fresh fruit in their top five snack choices. Is there a difference in the proportion of men and women who rank fresh fruit in their top five list of snacks?
Can we conclude from this that most workers there earn between $25 and $35 per hour? Is this the right interpretation for the margin of error?
Compute the mean and median.Compute the variance, standard deviation, range, and co-efficient of variation.Are the data skewed? If so, how?
By successfully completing this assessment, you will demonstrate your proficiency in the following course competencies and assessment criteria:
This statement should state that every that every flip of the coin is independent and for each flip for unbiased coin head and tail are unequal likely.
Which bread type has the highest average demand? Develop a fequency distribution for each bread type. Develop a histogram for each bread type. Which bread type has the highest standard deviation in demand?
1- ounce chocolate chip cookies resulted in following calorie amounts. At α=0.01 level, is there sufficient evidence that average calorie content is greater than 110 calories.
An automobile manufacturer wants to estimate the mean gasoline mileage that its customers will obtain with its new compact model.
A person runs one mile to his house as fast as he can. It is equally likely that he will run at an average speed of 3 miles per hour, 6 miles per hour, and 9 miles per hour.
Estimate the true weight with an error of 0.03 grams with 99 percent confidence? How to construct a 95 percent confidence interval for the population proportion of positive drug tests. How to tell if the normality distribution?
Question 1: At the PISA Web site (www.pisa.oecd.org), there are summary statistics for math scores of 15-year-old males and females for various countries separately. The mean math scores for males, the mean math scores for females, and also the di..
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