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3 years ago

11

PLZ PLZ HELP ASAP ABOUT TO FAIL

1 answer:

andre [41]3 years ago

4 0

First we need to figures it how much centimeters is in the cylinder . The bottom is 20 centimeter meters and the side is 110 centimeters. Take out the zeros and do 11 x 2, that equals 22, then put the 2 zeros back in. So the cylinder has a mass of 2200 centimeters. We want to fill half of the cylinder, so divided 2200 by 2 and that is 1100 centimeters. And 1100 is the answer to this equation.

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A random sample of 121 students from the University of Oklahoma had a sample mean ACT score of 23.4 with a sample standard devia

Grace [21]

Answer:

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 121

Sample mean = 23.4

Sample standard deviation = 3.65

Level of significance = 0.05

Degree of freedom

$= n - 1 = 120$

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Calculation of critical value:

$t_{critical}\text{ at degree of freedom 120 and}~\alpha_{0.05} = \pm 1.9799$

Putting the values, we get,

$23.4\pm 1.9799(\dfrac{3.65}{\sqrt{121}} )\\\\ = 23.4 \pm 0.6569\\\\ = (22.7431 ,24.0569)\approx (22.74,24.06)$

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

5 0

3 years ago

PLS HELP ME IM ON TIME4LEARNING

alukav5142 [94]

Answer:

13

Step-by-step explanation:

12*12=144

5*5=25

$\sqrt{169} = 13$

7 0

2 years ago

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A fire department spend $900 to purchase a new helmets and gloves the amount included a 6% sales tax what was the price of the e

Kisachek [45]

Answer:

$954

Step-by-step explanation:

900 x 0.06=

54+ 900=

954

7 0

3 years ago

Read 2 more answers

Convert 0.00049 to scientific Notation

BartSMP [9]

I think its 4.9 x 10-4

7 0

2 years ago

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What is { 1 + 7 - 6 + 99 }

Igoryamba

1 + 7 - 6 + 99 = 101

Step-by-step explanation:

7 + 1 = 8

8 - 6 = 2

99 + 2 = 101

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4 0

2 years ago

Read 2 more answers