Do heavier cars use more gasoline? To answer this question, a researcher randomly selected 15 cars. He collected data about ihhe wnlt (in hundreds of pounds) and the mileage (mpg) for each car. From a scatterplot made with the data, a linear model seems approndate Fill in the blank. The variable the response variable in this study. O Mileage O Cars O Scatterplot O Weight

Q: question 19

A: a)The two methods to test the difference in mean are: z-test t-test

Q: what is measured by a confidence interval and describe the factors that affect the width of a…

A: How much ambiguity there is for any given statistic is a confidence interval. Confidence intervals…

Q: Question attached

A: Given information- Sample proportion, p = 0.25 We know that, sample is best estimator of population…

Q: d. 噩田

A:

Q: Which graph correctly solves the equation below? -x²+1=x²-4

A: topic - quadratic equations

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: question 32

A: (32)   (a)   State the hypotheses. That is, the average activating temperature is at least 135 F.…

Q: Add. -3 + (-7) + 6

A:

Q: Given the parent function f(x) = 2, which graph shows f(x) + 1? -5 -4 -3 -2 2 3 4 2 -5 3 4 2.

A: Given :   f(x)=2x

Q: Find ay Sin(x+y)=Cos X t cos y

A:

Q: Question attached

A:

Q: how do I find the test statistics and pvalue using excel or statcrunch? thank u

A: It is given that out of 308 orders, it is found that 37 are inaccurate. The sample proportion is…

Q: Question

A:

Q: Question 9

A:

Q: Question 51

A: SOLUTION-

Q: 2. Evaluate dz.

A: I = ∫x31 - x2 dxLet, x = cosθ ⇒ dx = -sinθ dθSo, I = ∫cos3θ1 - cos2θ- sinθ dθ          = - ∫cos3θ…

Q: 4P3

A:

Q: Kinda lost

A: here the graph passes two times  through the x -axis  so there will be two roots