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Question: The following data set shows the heights in inches for the boys in a class of 40 students.
66; 66; 67; 67; 68; 68; 68; 68; 68; 69; 69; 69; 70; 71; 72; 72; 72; 73; 73; 74
The following data set shows the heights in inches for the girls in a class of 40 students.
61; 61; 62; 62; 63; 63; 63; 65; 65; 65; 66; 66; 66; 67; 68; 68; 68; 69; 69; 69
Construct a box plot using a graphing calculator for each data set, and state which box plot has the wider spread for the middle 50% of the data.
calculate the standard deviation for the following sample and show your work. use the formula of your choice. use the
assume that the helium porosity of coal samples taken from any particular seam is normally distributed with true
Suppose the least squares regression equation is Y' = 1,202 + 1,133X. When X = 3, what does Y' equal?
A study is conducted to compare mean cholesterol levels for individuals following a low carbohydrate diet for at least 6 months to individuals following a conventional (low fat, low calorie )diet for at least 6 months.
How might an age difference confound these research findings about the relationship between depression and ability to survive a heart attack?
Give an example representing a discrete probability distribution and another example representing a continuous probability distribution. Explain why your choices are discrete and continuous.
sampling plan for a movie promotion. advertising companies often try to characterize the average user of a clients
suppose that in the baltimore metropolitan area 25 of the crimes occur during the day and 80 occur in the city. if
consider the type of balance digital or not purchased by each of five pharmacists.a suppose the probability that at
As an aid for improving students' study habit, nine students were randomly selected to attend a seminar on the importance of education in life. The table shows the number of hours each student studied per week before and after the seminar.
Suppose a new production method will be implemented if a hypothesis test supports the conclusion that the new method reduces the mean operating cost per hour. a. State the appropriate null and alternative hypotheses if the mean cost for the current..
a) T- shirts at a store: price each, number sold. b) Real estate: house price, house size (square footage). c) Economics: Interest rates, number of mortgage applications. d) Employees: Salary, years of experience.
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