3) A research conducted at Arizona State University reported drinking water arsenicconcentrations in parts per billion (ppb) for 12 metropolitan Phoenix communities and 13communities in rural Arizona. The data follows:Sample Size Sample Mean Sample SDAreaMetro PhoenixRural Arizona1211.36.3139.33.2We wish to determine if the mean arsenic concentrations in metropolitan Phoenix communities ishigher than that of communities in rural Arizona. Use (a) critical value and (b) p-value toevaluate the claim. Write (c) statistical conclusion based on p-value. Assume a = 0.05.

Name: 3) A research conducted at Arizona State University reported drinking
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Description: 3) A research conducted at Arizona State University reported drinking water arsenicconcentrations in parts per billion (ppb) for 12 metropolitan Phoenix communities and 13communities in rural Arizona. The data follows:Sample Size Sample Mean Sample

The following information is provided: X: Metro phoenix Y: Rural Arizona Sample size n1=12…

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3) A research conducted at Arizona State University reported drinking water arsenic concentrations in parts per billion (ppb) for 12 metropolitan Phoenix communities and 13 communities in rural Arizona. The data follows: Sample Size Sample Mean 11.3 | 9.3 Sample SD 6.3 3.2 Area Metro Phoenix Rural Arizona 12 13 We wish to determine if the mean arsenic concentrations in metropolitan Phoenix communities is higher than that of communities in rural Arizona. Use (a) critical value and (b) p-value to evaluate the claim. Write (c) statistical conclusion based on p-value. Assume a = 0.05.

3) A research conducted at Arizona State University reported drinking water arsenic concentrations in parts per billion (ppb) for 12 metropolitan Phoenix communities and 13 communities in rural Arizona. The data follows: Sample Size Sample Mean 11.3 | 9.3 Sample SD 6.3 3.2 Area Metro Phoenix Rural Arizona 12 13 We wish to determine if the mean arsenic concentrations in metropolitan Phoenix communities is higher than that of communities in rural Arizona. Use (a) critical value and (b) p-value to evaluate the claim. Write (c) statistical conclusion based on p-value. Assume a = 0.05.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

3) A research conducted at Arizona State University reported drinking water arsenic
concentrations in parts per billion (ppb) for 12 metropolitan Phoenix communities and 13
communities in rural Arizona. The data follows:
Sample Size Sample Mean Sample SD
Area
Metro Phoenix
Rural Arizona
12
11.3
6.3
13
9.3
3.2
We wish to determine if the mean arsenic concentrations in metropolitan Phoenix communities is
higher than that of communities in rural Arizona. Use (a) critical value and (b) p-value to
evaluate the claim. Write (c) statistical conclusion based on p-value. Assume a = 0.05.

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