3 years ago

I need help with this

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

The answers are in the picture. Good luck

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A major car dealership has several stores in a big city. The owner wants to determine if there is a difference in the proportion

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Answer:

confidence interval = ( -0.38 , 0.08 )

Step-by-step explanation:

Given data :

n1 = 55 , n2 = 60 ,

Let P1 ( proportion of SUV sales at store A ) = 30 / 55 = 0.55

P2 ( sample proportion of SUV sales at store B ) = 42/60 = 0.70

The Z-value at 99% confidence Interval = 2.58

Determine the 99% confidence interval for difference in proportion

applying the formula below

( P1 - P2 ) ± Z ( $\sqrt{p1( 1-p1)/n1 + p2(1-p2)/n2}$

Input values above into equation

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3 years ago

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Answer:

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Step-by-step explanation:

just plug it into a calculator

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2 years ago

Jessica is planting a garden. It has the shape of a right triangle. She wants 4 plants for each square foot of area. How many p

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Answer:

21 plants are in the garden

Step-by-step explanation:

here , base = 7 m

height = 24 m

Thus , The area of the triangle (garden ) is 84 m ²

he wants 4 plants for each square meter of area.

therefore , for 84 m ² number of plants are

i.e 21 plants

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Is this a right triangle? 25 cm, 23 cm, and 14 cm. O YES O NO

madam [21]

Answer:

Step-by-step explanation:

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3 years ago

− 3 − {3 − [ − 3(2 +4) − ( − 2)]}

Readme [11.4K]

-22 is the answer i got

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