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vfiekz [6]
2 years ago
9

13)

Mathematics
1 answer:
motikmotik2 years ago
5 0

See below for the response to each question

<h3>The variable</h3>

This is the item that is being surveyed.

The surveyed item is birth weights

Hence, the variable is birth weights

<h3>The units of the variable</h3>

From the question, we have:

Average birth weight is 6 pounds 8 ounces.

Hence, the units of the variable are pounds and ounces

<h3>The population</h3>

This is the total number of babies in Southeast Asia

Hence, the population of interest is the babies in Southeast Asia

<h3>The individual</h3>

This is the people in the survey

Hence, the individual in the study is the 100 babies that were randomly surveyed

<h3>The parameter of interest</h3>

This is the value that gives the required information.

Hence, the parameter of interest is the average birth weight

<h3>What is the statistic involved</h3>

The statistic is the average

Read more about random surveys at:

brainly.com/question/15105321

#SPJ1

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viktelen [127]

Answer:

4m +2m = D

Step-by-step explanation:

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4 0
4 years ago
Shannon graphed the system of equations.
ehidna [41]
All you need to do is plug -5 into the second equation and you see it is near (-5, -8). When plugged into the top, you get (-5, -27/4) which comes out to ABOUT -6.75 for the Y value. The closest is actually a tie. The first option is .8 from the first and .45 from the second leading in a total distance of 1.25. The second, which is the fellow answer, is 1.2 from the first and .05 from the second, leading to 1.25 away.

The third, which is next closest is 1.8 from the first and .55 from the second leading to a distance of over 2 from the optimal, so only the first two are answers.
3 0
4 years ago
Read 2 more answers
A researcher wishes to be 95% confident that her estimate of the true proportion of individuals who travel overseas is within 3%
andre [41]

Answer:  a) 683   b) 1067

Step-by-step explanation:

The confidence interval for population proportion is given by :-

p\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

a) Given : Significance level :\alpha=1-0.95=0.05

Critical value : z_{\alpha/2}}=\pm1.96

Margin of error : E=0.03

Formula to calculate the sample size needed for interval estimate of population proportion :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.2(0.8)(\dfrac{1.96}{0.03})^2=682.951111111\approx683

Hence, the required sample size would be 683 .

b) If no estimate of the sample proportion is available then the formula to calculate sample size will be :-

n=0.25(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.96}{0.03})^2=1067.11111111\approx1067

Hence, the required sample size would be 1067 .

3 0
3 years ago
3 1/4 hours convert to minutes
3241004551 [841]

Answer:

465 minutes

Step-by-step explanation:

HOPE IT HELPS

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2 years ago
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What does a+b-3 equall
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It is 3ab ;).........

5 0
3 years ago
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