Use a computer or statistical calculator to calculate the correlation coefficient in parts a through c below. a. The table shows the approximate distance between selected cities and the approximate cost of flights between those cities. Calculate the correlation coefficient between cost and miles. r=0.315 (Round to three decimal places as needed.) Cost Miles 184 967 404 3086 275 1998 93 432 434 3002

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A: The appropriate hypothesis test for each of the following research situations: z for Mean Pearson…

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A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

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A: Apologies for the inconvenience. I have rechecked the works and I am solving again them for you. The…

Q: What can you conclude regarding the numbers y and z if x z?

A: Given x<y, x>z

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A: Question b in the thread is  A parabola is the set of all points in a plane which are equidistant…

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A: To find the margin of error (MOE) for a proportion, we can use the…

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A: One factor of the quadratic polynomial 5x2+2x+27 is 5x+9. Let, the other factor be (x+a), then…

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A: From given  mean is 0 and standard deviation is 1

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A: Given that  Level of significance (α)    We know that  Type I error : Rejecting the null hypothesis…

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A: To find a positive value of  such that the average value of  over the interval  is 20.

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A: Given: A polygon whose all sides are equal. So, QR=RS

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A: X-intercepts are found by substituting y=0 in the given function.