The following table shows the hot dogs bought from a street vendor over the course of eight days​ ("Demand"). Also shown is the temperature for each day in degrees Celsius.    Temperature (°C)  22 12 22 18 7 14 18 21   Demand 47 28 36 41 16 25 41 33     SST=709.88 SSE=199.48 SSR=510.40 R2=0.719 F=15.37   Determine the​ p-value.   The​ p-value is ​(Round to three decimal places as​ needed.)

is 20. Determine d so that the average value of the function y = 3 x + 2 40 35 30 25 20 15 10 2 4 6 10 12

Listed below are amounts (in millions of dollars) collected from parking meters by Brinks. Find coefficient of variation The data were provided by the attorney for New York City, and they are listed on the DASL Web site. Use s= 2.137 Collection contractor was Brinks:  71 66 72  69  68  69 Group of answer choices 3.1% 11.5% 1.5% 4.1%

The table shows the number of hours 9 students spent studying for a test and their scores on that test. What would be the predictable score when a student studied for 4.5 hours? Hours spent studying, x 0 2 4 5 5 5 6 7 8 Test scores, y 40 51 64 69 73 75 93 90 95 A. 67 B. 68 C. 69 D. 71

The table below shows the relationship between the altitude of the atmosphere and corresponding temperature. Altitude (in feet) 25,000 20,000 15,580 12,902 Temperature (in degree Celsius) 10 16 25 30 What inference can be made from the above data?   A.The temperature of the atmosphere decreases with the increase in the altitude. B.The temperature of the atmosphere decreases with the decrease in the altitude. C.The temperature of the atmosphere increases with the increase in the altitude. D.ANo inference can be made from the given data.

Solve.

It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:  x 5.75 6.75 7.75 8.50 9.25 y 27 16 46 62 95 ​ What percentage of the variation in y cannot be explained by the corresponding variation in x and the least-squares line? Round your answer to the nearest tenth of a percent.    3.4%        18.4%        81.6%        9.7%