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Dennis_Churaev [7]
3 years ago
11

Brett earns $19.20/h and he gets overtime for hours exceeding 40 per week.

Mathematics
2 answers:
OleMash [197]3 years ago
7 0

For this case we have to:

  • <em>The payment per hour is $ 19.20 </em>
  • <em>The total payment was $ 1056 </em>

We can make the following rule of three to calculate the number of hours:

1 h --------------------> 19.20 $

x -----------------------> 1056 $

From here, we clear the value of x:

x = \frac {1056} {19.2}\\x = 55

Answer:

I have to work 55 hours to earn a gross weekly pay of exactly $ 1056

Lubov Fominskaja [6]3 years ago
3 0
Brett has to work 55 hours to make exactly $1056
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Answer:

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And on this case since the value for the slope is positive the best interpretation is:

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For this reason is not meaningful since we are not interested on 0 or negative city mpg.

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d) See the figure attached.

Step-by-step explanation:

For this case we have the following linear model:

highway mpg = 6.785 + (1.033 × city mpg)

(a) What is the slope of this line? Say in words what the numerical value of the slope tells us.

As we can see on the equation given the slope os 1.033 since is the value next to the city mpg (independent variable)

And on this case since the value for the slope is positive the best interpretation is:

E. On the average, highway mileage increases by 1.033 mpg for each additional mpg in city mileage

Because we see the if we increase on 1 unit the city mpg then the highway mpg would increase 1.033

(b) What is the intercept? (Enter your answer to three decimal places.)mpgExplain why the value of the intercept is not statistically meaningful.

For this case as we can see in the model the free term correspond to 6.785 and that correspond to the intercept for this case.

And the best interpretation is given by:

B. Because this is the highway mileage for zero city mpg.

For this reason is not meaningful since we are not interested on 0 or negative city mpg.

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