A construct a scatter diagram of the data b find the

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Reference no: EM13389891

Interstate 90 is the longest of the east-west U.S. interstate highways with its 3,112 miles stretching from Boston, MA at I-93 on the eastern end to SeattleWA at the Kingdome on the western end. It travels across 13 northern states; the number of miles and number of intersections in each of those states is listed below.

State	No. of Inter	Miles
WA	57	298
ID	15	73
MT	83	558
WY	23	207
SD	61	412
MN	52	275
WI	40	188
IL	19	103
IN	21	157
OH	40	244
PA	14	47
NY	48	391
MA	18	159

a) Construct a scatter diagram of the data.

b) Find the equation for the line of best fit using x= miles and y=intersections.

c) Using the equation found in part (b), estimate the average number of intersections per mile along I-90.

d) Find a 95% confidence interval for β1.

e) Explain the meaning of the interval found in part d.

Reference no: EM13389891

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