# Help solve this statistic business problem?

**Question 2
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 Seattle WA 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.
StateNo. of InterMiles
WA57298
ID1573
MT83558
WY23207
SD61412
MN52275
WI40188
IL19103
IN21157
OH40244
PA1447
NY48391
MA18159
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 Î²1.
e.Explain the meaning of the interval found in part d.
**

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