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Amiraneli [1.4K]
4 years ago
8

Sue and Javier are working on a statistics project to estimate the proportion of students at their school who have a pet dog. Su

e selects a random sample of 81 students from the 2,400 students at their school, and Javier selects a separate random sample of 64 students. They will both construct a 90 percent confidence interval from their estimates. Consider the situation in which the sample proportion from Sue’s sample is equal to the sample proportion from Javier’s sample. Which of the following statements correctly describes their intervals?
Mathematics
1 answer:
JulsSmile [24]4 years ago
5 0

Answer:

E) The width of Sue's interval will be narrower than Javiers

Step-by-step explanation:

In confidence intervals, as sample size increases, the width of the confidence interval decreases.

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<em>Factors and multiples are related by multiplication.</em>

<h2>Explanation:</h2>

When you multiply numbers together to find a number, say, n, then those numbers are called factors of n. For instance:

a\times b \times c=n \\ \\ \\ Where: \\ \\ a,b,c \ are\ factors \ of \ n

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<em>As you can see, both factors and multiples implies a multiplication. So factors and multiples are related by multiplication.</em>

<h2>Learn more:</h2>

Product of linear factors: brainly.com/question/13882113

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3 years ago
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Answer:

1. 21

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3 years ago
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Answer:

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Step-by-step explanation:

Leema's test scores in chemistry are 80, 95, 88, 92, and 100.

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The standard deviation is given by:

SD=\sqrt{\frac{\sum(x-\bar X)^2}{n} }

SD=\sqrt{\frac{(80-91)^2+(95-91)^2+(88-91)^2+(92-91)^2+(100-91)^2}{5} }

SD=\sqrt{\frac{1140}{25} }

SD=6.8 to the nearest tenth.

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Each packet gives you 18 sticks of gum. If you asked how many in 5 packets it would be 90 sticks.

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