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3 years ago

7

A baseball team had 80 players show up for tryouts last year and this year had 96 players show up for tryouts. Findthe percent i

ncrease in players from last year to this year

1 answer:

satela [25.4K]3 years ago

7 0

There’s a 20% increase from last year to this year.

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A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

Thus, the value of test statistic is -4.1247

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2 years ago

Reason on why xy=uv,uv=tv

blagie [28]

Can you please add the picture with the problem, then I will answer your question ?

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3 years ago

The set of ordered pairs below represents a relation that is a function.

swat32

Answer:

I'm confused by the points:

Why three points for each (A, B, C, and D)?: A: (0,6)(0,6)(0,6), etc.

Points A and B [(0,6) and (4,2)] are consistant with a straight line of the form y=-x+6.

Points C and D [(-6,8),(-8,10)]are on the line y=-x+2.

A and B aren't related to C and D.

Step-by-step explanation:

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2 years ago

Robert says 12 divide by 3//4 = 9. He used the following steps: 12/1 × 3/4 = 36/4 What error did Robert make? A. Robert used sub

wlad13 [49]

Answer:

C and D are the same answers but one of those.

Step-by-step explanation:

Um, I got what Robert got, so by process of elimination, it must be C or D. I used multiplication, so it wasn't subtraction or addition. Meaning whatever a reciprocal is, I didn't do that.

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2 years ago

Three sides of a quadrilateral are the same length. q. the length of the forth side is 7 inches. the perimeter of the quadrilate

Anna71 [15]

Answer:

$7 \times 7 \times 7 \times 7$

To get the area of the quadrilateral to do see the 4 sides do all four side 7x7x7x7

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2 years ago