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  3. #1) consider the following table summarizing the s

#1) Consider the following table summarizing the speed limit of a certain road and the number...

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Statistics

#1) Consider the following table summarizing the speed limit ofa certain road and the number of accidents occurring on that roadin January

Posted Speed Limit

51

48

43

35

22

20

Reported Number of Accidents

25

29

25

17

19

14

a) Find the slope of the regression line predicting the numberof accidents from the posted speed limit. Round to 3 decimalplaces.

b) Find the intercept of the regression line predicting thenumber of accidents from the posted speed limit. Round to 3decimal places.

c) Predict the number of reported accidents for a posted speedlimit of 43mph. Round to the nearest whole number.

#2) Consider the following:

X

37

60

73

104

124

Y

205

228

170

121

105

a) What is slope of the regression line predicting Y from X,rounded to 2 decimal places?

b) What is the intercept of the regression line predicting Yfrom X, rounded to 2 decimal places?

c) What is the correlation between X and Y, rounded to 2decimal places?

Answer & Explanation Solved by verified expert
4.3 Ratings (634 Votes)
1aslope 0376bintercept    See Answer
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