hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Zinc Zinc Location concentration in concentration in bottom water surface water 1 .430 .415 .266 .238 3 .567 .390 4 .531 .410 .707 .605 6 .716 .609 7 .651 .632 8 .589 .523 9. .469 .411 10 .723 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a =.1 level of significance? a) Express the null and alternative hypotheses in symbolic form for this claim. Assume d = bottom - surface. Enter !- for +. Ho: Pd Ha: Pd b) What is the significance level? a c) What is the test statistic? Round to 3 decimal places. d) What is the p-value? Round to 4 decimal places.
hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Zinc Zinc Location concentration in concentration in bottom water surface water 1 .430 .415 .266 .238 3 .567 .390 4 .531 .410 .707 .605 6 .716 .609 7 .651 .632 8 .589 .523 9. .469 .411 10 .723 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a =.1 level of significance? a) Express the null and alternative hypotheses in symbolic form for this claim. Assume d = bottom - surface. Enter !- for +. Ho: Pd Ha: Pd b) What is the significance level? a c) What is the test statistic? Round to 3 decimal places. d) What is the p-value? Round to 4 decimal places.
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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![Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source.
| Location | Zinc concentration in bottom water | Zinc concentration in surface water |
|----------|-----------------------------------|-----------------------------------|
| 1 | 0.430 | 0.415 |
| 2 | 0.266 | 0.238 |
| 3 | 0.567 | 0.390 |
| 4 | 0.531 | 0.410 |
| 5 | 0.707 | 0.605 |
| 6 | 0.716 | 0.609 |
| 7 | 0.651 | 0.632 |
| 8 | 0.589 | 0.523 |
| 9 | 0.469 | 0.411 |
| 10 | 0.723 | 0.612 |
Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the α = 0.1 level of significance?
a) Express the null and alternative hypotheses in symbolic form for this claim. Assume d = bottom - surface.
\( H_0: \mu_d = 0 \)
\( H_a: \mu_d > 0 \)
b) What is the significance level?
\( \alpha = 0.1 \)
c) What is the test statistic? Round to 3 decimal places.
\([ \? - ]\)
d) What is the p-value? Round to 4 decimal places.
\([ p = \ ] \)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab306750-7c99-4ab7-aa22-5313632298af%2F877beb76-641d-467b-9229-91347d84b7a5%2Ffnbzpak_processed.png&w=3840&q=75)
Transcribed Image Text:Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source.
| Location | Zinc concentration in bottom water | Zinc concentration in surface water |
|----------|-----------------------------------|-----------------------------------|
| 1 | 0.430 | 0.415 |
| 2 | 0.266 | 0.238 |
| 3 | 0.567 | 0.390 |
| 4 | 0.531 | 0.410 |
| 5 | 0.707 | 0.605 |
| 6 | 0.716 | 0.609 |
| 7 | 0.651 | 0.632 |
| 8 | 0.589 | 0.523 |
| 9 | 0.469 | 0.411 |
| 10 | 0.723 | 0.612 |
Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the α = 0.1 level of significance?
a) Express the null and alternative hypotheses in symbolic form for this claim. Assume d = bottom - surface.
\( H_0: \mu_d = 0 \)
\( H_a: \mu_d > 0 \)
b) What is the significance level?
\( \alpha = 0.1 \)
c) What is the test statistic? Round to 3 decimal places.
\([ \? - ]\)
d) What is the p-value? Round to 4 decimal places.
\([ p = \ ] \)
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