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GaryK [48]
3 years ago
5

A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage

was recorded (see below). 40,060 24,960 14,310 17,370 44,740 44,550 20,250 33,380 24,270 41,740 58,630 35,830 25,750 28,910 25,090 43,380 23,940 43,510 53,680 31,810 36,780 picture Click here for the Excel Data File (a) Is the dealer's mean significantly greater than the national average for 2-year leases, which is 30,000 miles? Using the 10 percent level of significance, choose the appropriate hypothesis. H0: μ ≤ 30,000, reject H0 if tcalc > 1.325 H1: μ ≤ 30,000, reject H0 if tcalc > 1.325 H0: μ > 30,000, reject H1 if tcalc > 1.325 H1: μ > 30,000, reject H1 if tcalc > 1.325 a b c d (b-1) Calculate the test statistic. (Round your answer to 2 decimal places.) Test statistic (c) The dealer's cars show a significantly greater mean number of miles than the national average at the 10 percent level.
Mathematics
1 answer:
Liula [17]3 years ago
4 0

Answer:

yes 30 is the answer

Step-by-step explanation:

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Please solve for me it's urgent. A rectangle has 10 and 6cm each. find the area of a square with the same perimeter as that of t
elena55 [62]

Answer:

64 cm²

Step-by-step explanation:

Firstly,let us lay down the clues;

So, we have been given the Length and Width of the rectangle.

Rectangle;

<em>Length</em><em>=</em><em> </em><em>10</em><em> </em><em>cm</em>

<em>Width</em><em>=</em><em>6</em><em> </em><em>cm</em>

We know that

Perimeter= 2L + 2W

Perimeter= 10+10+6+6

Perimeter =32 cm

In the questionnaire, it is mentioned that a square has the same perimeter as the rectangle. That means, the perimeter of the square is similar to the one of the rectangle which is 32 cm.

So,

Perimeter of square =32 cm

Length of one side of the square =32÷4

=8 cm

Area= L × W

Area= 8 cm× 8 cm

Area= 64 cm²

Hope it helps.

5 0
3 years ago
If BC=2x-3 and AC=2x+10, find the length of AB
Anettt [7]

Answer:

ac

Step-by-step explanation:

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5 0
2 years ago
It takes 15 hours for 4 men to paint a room.
kolezko [41]

Answer:

6

Step-by-step explanation:

If there was one man, he would have taken 15×4= 60 hours

To complete the job in 10 hours, 60÷10 = 6 men will be needed

6 0
3 years ago
Bella works at the grocery store and has 453 oranges to fit into 17 boxes. She fills all of the boxes with exactly the same numb
LUCKY_DIMON [66]

Answer:

It would be 7701

Step-by-step explanation: hope this helps!

6 0
3 years ago
Read 2 more answers
When using the given diagram to determine the area of the pentagon by decomposition, which statements are correct?:
pogonyaev

Answer:

Options (B) and (E)

Step-by-step explanation:

Area of ΔABC = \frac{1}{2}(\text{Base})(\text{Height})

                        = \frac{1}{2}(14)(6)

                        = 42 in²

Area of trapezoid ADEC = \frac{1}{2}(b_1+b_2)h

[Here, b_1 and b_2 are the parallel sides and 'h' is the height of the isosceles trapezoid given]

= \frac{1}{2}(10+14)(8)

= 96 in²

Area of the pentagon = Area of triangle ABC + Area of trapezoid ADEC

                                    = 42 + 96

                                    = 138 in²

Therefore, Options (B) and (E) are the correct options.

6 0
3 years ago
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