arianawelsh123l

25.04.2020 • 

Mathematics

For the general population males 6 feet tall weigh an average of 184 pounds. A researcher’s claim is that men in an anti-smoking program will gain weight. To test this claim a sample of 6 feet tall men who are in the program are to be selected. Assume the mean weight of 6 feet tall men in this program is actually 194 pounds, σ = 18 pounds, and that the data are normally distributed. The study will test significance at the 0.01 level. How large a sample would be required so that the associated test had 86% power?

Ответ:

Bgreene2377

25.01.2022

Mathematics

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As given in the problem statement

Height=6 ft

average=184 pounds

sigma=18 pounds

significance level=0.01

Confidence level=99.99

percentage=86%

To give all the data we need a sample size of n=100

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Ответ:

catherineguyen3216

04.01.2021

Mathematics

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In the problem, “if a square field has an area of 479ft squared, what is the approximate length of the side of the field”.
The given is:
Area = 479 ft
Formula: Since to get the area you have to have length and width hence the formula of area which is:
Area = length x width
We can derive the equation. As length x area = area2
Solution:
Length = area2
Length = square root of 479 ft squared
Length = 21.9 ft ”

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