A power company located in southern Alabama wants to predict the peak power load (i. e., the maximum amount of power that must be generated each day to meet demand) as a function of the daily high temperature (X). A random sample of summer days is chosen, and the peak power load and the high temperature are recorded each day. The file P10_40.xlsx contains these observations. a. Create a scatterplot for these data. Comment on the observed relationship between Y and X.
b. Estimate an appropriate regression equation to predict the peak power load for this power company. Interpret the estimated regression coefficients.
c. Analyze the estimated equation’s residuals. Do they suggest that the regression equation is adequate? If not, return to part b and revise your equation. Continue to revise the equation until the results are satisfactory.
d. Use your final equation to predict the peak power load on a summer day with a high temperature of 100 degrees.

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.  

5050 i think

step-by-step explanation:

my answer got deleted but it's a

step-by-step explanation: