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d1i1m1o1n [39]
3 years ago
13

In a representative sample of 1000 adult Americans, only 460 could name at least one justice who is currently serving on the U.S

. Supreme Court. Using a significance level of 0.01, carry out a hypothesis test to determine if there is convincing evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court. (For z give the answer to two decimal places. For P give the answer to three decimal places.)z=p=
Mathematics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

P=2.326

Step-by-step explanation:

Raw Score (X):=1000

Population Mean (μ):=460

Standard Deviation (σ): =Sqrt(npq)

Where n=1000, p=460/1000=0.46 and q=1-0.46=0.54

Sqrt(npq)=sqrt(460X0.54)=15.7607

Z = (X - μ) / σ

Z = (1000 - 460) / 15.7607

Z = 34.26244

For p-value 0.01

P(x=0.01) = 2.32635

Hence, P=2.326 t 3 decimal places.

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Musya8 [376]
Because the last equation already has the y eliminated so just need to get the other two to eliminate the y too

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now take equation #3 and #4 together to solve for one of the variables, i’ll solve for z first so i’ll get rid of x by multiply the equation #4 all by 4, you get

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now you have z so take it and ply it into equation #3
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-3-y-(-1)=-8
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done so the answer is (x,y,z) = (3,6,-1)


5 0
3 years ago
Read 2 more answers
Leo bought a used car for x dollars. one year later the value of the car was 0.88x. which expression is another way to describe
Lesechka [4]

Initial price of car = $x

After one year the price of car = $0.88x

to find the change in price we subtract the price after one year from initial price.

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7 0
4 years ago
During the Indy 500, the winning car traveled at an average constant speed of 232 miles per hour. The equation d = 232t represen
Mars2501 [29]

Answer:

The car traveled 232 miles in one hour.

Step-by-step explanation:

<em>232 miles per hour.</em>

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7 0
4 years ago
An elephant can run 4 of a mile in 36 seconds. At this rate, which expression can be
statuscvo [17]

Answer:

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Step-by-step explanation:

We have been given that an elephant can run one over four of a mile in 36 seconds.

To find elephant's rate in miles per hour, we will convert our given time in hours as shown below:

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7 0
3 years ago
Plz help, <br> Graph f(x)=|x−6|−4
sattari [20]

MrBillDoesMath!


Answer: I don't know how to draw graphs  on this website but here's the "picture".  Imagine the function y = absolute value(x). It looks like the English letter "V". The bottom of our V (i.e f(x) touches the x-axis when x = 6, so the "V" graph has been translated 6 units to the right of the origin. But  when x = 6 the value of f(x) is 0-4 = -4 so the tip of the V is located 4 units below the x axis. Summary:  g(x) looks like the absolute value function but  is translated 6 units to the right of the origin and 4 units down

MrB

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