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NNADVOKAT [17]
2 years ago
13

This isn’t urgent, but it’s appreciated if u reply quickly

Mathematics
1 answer:
rjkz [21]2 years ago
7 0
The answer is opposite
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A medical website states that 40% of U.S. adults are registered organ donors. A researcher believes that the proportion is too h
Marat540 [252]

Answer:

P value is 0.1932

conclusion is that find value P greater than hypothesis test at the 0.05 level

Step-by-step explanation:

Given data

registered organ donors P  = 40%

sample n = 200

registered organ donors x = 74

hypothesis test α = 0.05

to find out

P-value and state a conclusion

solution

we take a trail p less than 40 % i.e 0.40

so p = x/n

p = 74 / 200 = 0.37

so we find here Z value  i.e

Z = p - P / √(PQ/n)

here Q = 1-p = 1-0.40 = 0.60

so Z = 0.37 - 0.40 / √(0.40×0.60/200)

Z = - 0.866

so p value for Z (-0.866) from z table

P value is 0.1932

and conclusion is that find value P greater than hypothesis test at the 0.05 level

6 0
3 years ago
Read 2 more answers
What is the area of the shaded sector
Whitepunk [10]

Answer:

Area = 634.21 square metre

Step-by-step explanation:

Area of shaded region = Area of the circle - Area of the sector

Area \ of \ the \ circle = \pi r^2 = 225 \pi\\\\Area \ of \ the \ sector = \pi r^2 \frac{ \theta}{360} = \pi \times 225 \times \frac{37}{360}

Area \ of \ shaded \ region = 225 \pi - (225 \pi \times  \frac{37}{360})

                                   = 225 \pi (1 - \frac{37}{360})\\\\= 225 \pi \times 0.89722\\\\=634.21 m^2

7 0
2 years ago
Read 2 more answers
Look at the following function <br> X -12 -8
Julli [10]
X-12 -8
calculate the difference
X-20
6 0
2 years ago
Find the y-intercept of the equation. y=-3•7^x​
Lorico [155]

Answer:

The y intercept is (0,-3)

7 0
2 years ago
Read 2 more answers
Write the equation of the line that passes through the points (3, 7) and (-1, 2)
nasty-shy [4]

Answer:

y =  \frac{5}{4} x + 3 \frac{1}{4}

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

Let's find the gradient of the line, m, first.

Gradient=\frac{y1 - y2}{x1 - x2}

m =  \frac{7 - 2}{3 - ( - 1)}  \\ m =  \frac{5}{3 + 1}  \\ m = \frac{5}{4}

y =  \frac{5}{4} x + c

To find the value of c, substitute a coordinate.

when x= -1, y= 2,

2 =  \frac{5}{4} ( - 1) + c \\ c = 2 +  \frac{5}{4}  \\ c = 3 \frac{1}{4}

Thus, the equation of the line is

y =  \frac{5}{4} x + 3 \frac{1}{4}

7 0
3 years ago
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