A mayor running for re-election claims that during his term, average municipal taxes have fallen by $150. A conscientious statistician wants to test this claim. She surveys 37 of her neighbors and finds that their taxes decreased (in dollars) as follows: 166, 77, 128, 188, 156, 121, 158, 218, 159, 91, 76, 177, 164, 43, 145, 200, 183, 161, 145, 149, 135, 101, 87, 151, 265, 90, 152, 108, 141, 201, 170, 141, 138, 121, 82, 168, 179 1/distribution standard deviation ? 2/Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate. P(x)=? P(z)=?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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A mayor running for re-election claims that during his term, average municipal taxes have fallen by $150. A conscientious statistician wants to test this claim. She surveys 37 of her neighbors and finds that their taxes decreased (in dollars) as follows:

166, 77, 128, 188, 156, 121, 158, 218, 159, 91, 76, 177, 164, 43, 145, 200, 183, 161, 145, 149, 135, 101, 87, 151, 265, 90, 152, 108, 141, 201, 170, 141, 138, 121, 82, 168, 179

1/distribution standard deviation ?

2/Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate.

P(x)=?

P(z)=?

 

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