On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the
residential water rates of other U.S. public utilities compare to Tulsa's rate? The file ResidentialWater contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.a.Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa.b.What is the p-value for your hypothesis test in part (a)?c.At a=.05, can your null hypothesis be rejected? What is your conclusion?d.Repeat the preceding hypothesis test using the critical value approach.
For the answer to the question above, I would start with a simple equation 6x+10y is more than or equal to 75 A. If we l<span>et x represent babysitting hours and y represent tutoring hours: x+ y </span>≤ 20 6x + 10y ≥ 75
B. The inequality: x+ y ≤ 20 can be graphed by graphing the line x + y = 20 and shading the area below the line. The inequality 6x + 10y ≥ 75 can be graphed by graphing the line 6x + 10y = 75 and shading the area above the line.
C. The area where the two shaded regions from the two inequalities overlap are the possible number of hours for tutoring and for babysitting. Algebraically: x ≤ 20 - y 6(20 - y) +10y ≥ 75 y ≤ 11.25 x ≤ 8.75