3.32 What Percent of the US Population Are Senior Citizens? People 65 years and older are the fastest growing segment of the US population, and constituted 13% of the population in 2010.19 Figure 3.10 shows sample proportions from two sampling distributions of the proportion 65 years and older in the US: One shows samples of size 100, and the other shows samples of size 1000. (a) What is the center of both distributions? (b) What is the approximate minimum and maxi- mum of each distribution? (c) Give a rough estimate of the standard error in each case.

Q: 2x 940 30 120

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Q: 95° 6.

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Q: I would like to ask for the 11.16 answer as well. Thank you.

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Q: 11° x 118 1123 (112)×

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Q: Kailasben

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Q: how did you get 10.02  if you do 2.41*1.8+5.7=10.038

A: As we know z-value formula  z=x-μσ now we have : z=2.4μ=5.7σ=1.8

Q: 1358

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A: It is t=44.346

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A: The mean is 9.9 ppm and the standard deviation is 1.6 ppm.

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Q: 100/20

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Q: Can you help?

A: We know TQ=390 and QU=1404 So, TU= TQ+QU=390+1404=1794   And TR=450

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A: (0.94)2 = (0.9)4x2 = 0.98 = 0.43046721

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A: