3. Automobiles manufactured by the Efficiency Company have been averaging 42 miles per gallon of gasoline in highway driving. It is believed that its new automobiles average more than 42
miles per gallon. An independent testing service road-tested 36 of the automobiles. The sample
showed an average of 42.8 miles per gallon with a standard deviation of 1.2 miles per gallon.
With a 0.05 level of significance using the p-value approach, test to determine whether or not
the new automobiles actually do average more than 42 miles per gallon.
a.
State the null and alternative hypotheses. (10 points)
b.
Compute the test statistic. (10 points)
c.
What is the p-value associated with the sample results? What is your conclusion
based on the p-value? (10 points)

step-by-step explanation:

2

step-by-step explanation:

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6