Challenge activities CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 2* z = 1.645 0.95 ** z = 1.960 0.99 z* = 2.576 570234.4239304.qx3zqy7 Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 460 voters were against fire department bond measures. What is the sample proportion ? Ex: 0.123 What is the margin of error m for the 95% confidence level?

Q: 1x-3=23

A: Given 1x - 3 = 23

Q: Answer the picture

A: In the first row 0.6+0.4=1  But in the second row = 0.3+0.2=0.5 ≠ 1 So this is not a transition…

Q: 4x-45=4

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Q: X-y= 3 x+y = 5

A: Given equations x-y=3 x+y=5

Q: y + 8 = 12 y =

A: when left side digit shift to right side then it becomes negative if digit is positive and vice…

Q: do g please

A: From part e:For model 1; 95% CI and PI are: (168.5648, 175.9918) and (163.7609, 180.7957)For model…

Q: 3b-12 = 30

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Q: ズ+3 1 +3 寸

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Q: -8=-4+v

A: The given equation is,

Q: 4x-3=8

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Q: Just read the image and answer

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Q: Hello Please double check the answer

A: Solution ) according to question  Suppose numbers are x and y  x - y = 110 x = y + 110 Product  P =…

Q: - 6 = r-6. 3C

A: The given expression is: x-6=x-6