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scoray [572]
2 years ago
9

The number of miles USC employees commute to campus is normally distributed. To estimate the mean of this distribution, four emp

loyees were sampled. They had a mean commute of 10 miles and a standard deviation of 2 miles. What is the margin of error for the 90 percent confidence interval for the population mean? Round your answer to three decimal places.
Mathematics
1 answer:
Aleksandr [31]2 years ago
7 0
Yfiyfidy. It’s soot ioydotdi




It’s Bc. H. Dey h. Yes so I’m hehe what crazy now
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its 3

Step-by-etep explanation:

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3 years ago
1. Ali's health club membership costs $19.95 per
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10 visits tops

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50- 19.95= 30.05

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Is 500/1000 closer to zero 1 1/2 or one
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the length of a screwdriver is 19 centimeters. the handle is 5 centimeters long . what is the length of the top of the screw dri
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6 0
2 years ago
Essential: Solve the proportions<br> step by step ​
vazorg [7]

Answer:

The value of r=\frac{-106}{47}

The value of x=\frac{83}{32}

Step-by-step explanation:

Given that,

A) \frac{2r-2}{7r+10} = \frac{9}{8}

Now,

\frac{2r-2}{7r+10} = \frac{9}{8}

8(2r-2)=9(7r+10)

16r-16=63r+90

-16-90=63r-16r

-(16+90)=47r

-106=47r

r=\frac{-106}{47}

B) \frac{x+4}{9} = \frac{3(x-2)-1}{5}

Now,

\frac{x+4}{9} = \frac{3(x-2)-1}{5}

5(x+5)=9[3(x-2)-1]

5x+25=9[3x-6-1]

5x+25=9[3x-7]

5x+25=27x-63

25+63=27x+5x

83=32x

x=\frac{83}{32}

6 0
3 years ago
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