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Interstate 90 is the longest of the ease-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 nu8mber of intersections in each of those states is listed below. State WA ID MT WY SD MN WI IL IN OH PA NY MAIntersections 57 15 83 23 61 52 40 19 21 40 14 48 18Miles 298 73 558 207 412 275 188 103 157 244 47 391 159A. Construct a scatter diagram of the dateB. Find the equation for the line of best fit using x=miles and y= intersectionsC. Using the equation found in part b, estimate the average number if intersections per mile along i-90D. Find a 95% confidence interval for β1E. Explain the meaning of the interval found in part d
How would you go about studying a nonlinear or curvilinear relationship between two variables using contingency tables and chi-square tests? Provide examples from you own professional experience.
Using 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?
Smoking on campus. suppose 20% of the students on campus smoke. you select two students at random. In what percentage of samples will both students be smokers?
Create a 90% confidence interval for proportion of all kernels that would not pop.
The time needed to drive from town A to town B is normally distributed with a mean of 180 minutes and standard deviation of 20 minutes. What is the probability that a person will drive from town A to town B
Heather Carielli is a former student who earned a master degree at the Univeristy of Arkansas. When she randomly selected 16 new text books in the college book store she found that they had prices with a mean of $70.41 and a standard deviation of ..
Five homes are selected at random: What is the probability none of the six selected homes have a security system? (Round your answer to 3 decimal places.)
A real estate agent in the coastal area of Georgia wants to compare the variation in the selling price of homes on the oceanfront with those one to three blocks from the ocean sample of 21 oceanfront homes sold within the last year revealed the st..
In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made 153,348 runs and had 20 accidents, while the fleet of yellow fire trucks made 135,035 runs and had ..
Make an Excel line graph of the data on computer viruses. Discuss the underlying causes that might explain the trend or pattern.
A new restaurant with 123 seats is being planned. Studies show that 57% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?
Computing the probability values using normal distribution - Evaluate the percentage of homes that generate between 27 and 31 pounds of recycling per month.
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