RADIATION IN BABY TEETH Listed below are amount of radioactive isotope strontium-90 (in millibequerels, or mBq per gram of Calcium) in a simple random sample of baby teeth obtained from Pennsylvania residents and New York residents after 1979. Pennsylvania 155 142 130 149 151 163 151 142 156 133 New York 133 140 142 131 134 129 128 140 140 140 Assume that amounts of radioactive isotope strontium-90 are normally distributed. Use a 0.01 significance level to test the claim that the amounts of strontium-90 from Pennsylvania residents are different than the amounts from New York residents. Use the following steps: Step 1. Write the Claim, Null Hypothesis and Alternative Hypothesis in symbols. Step 2. Identify a Step 3. Check and identify the requirements for this test. Step 4. State the test statistic and P-value (use Excel but do not round the results) Step 5. State your decision to either reject or fail to reject the null hypothesis and why.

RADIATION IN BABY TEETH Listed below are amount of radioactive isotope strontium-90 (in millibequerels, or mBq per gram of Calcium) in a simple random sample of baby teeth obtained from Pennsylvania residents and New York residents after 1979. Pennsylvania 155 142 130 149 151 163 151 142 156 133 New York 133 140 142 131 134 129 128 140 140 140 Assume that amounts of radioactive isotope strontium-90 are normally distributed. Use a 0.01 significance level to test the claim that the amounts of strontium-90 from Pennsylvania residents are different than the amounts from New York residents. Use the following steps: Step 1. Write the Claim, Null Hypothesis and Alternative Hypothesis in symbols. Step 2. Identify a Step 3. Check and identify the requirements for this test. Step 4. State the test statistic and P-value (use Excel but do not round the results) Step 5. State your decision to either reject or fail to reject the null hypothesis and why.

Name: POSITIVE z ScoresNEGATIVE z ScoresTABLE A-2 (continued) Cumulative Ar
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Description: POSITIVE z ScoresNEGATIVE z ScoresTABLE A-2 (continued) Cumulative Area from the LEFTTABLE A-2 Standard Normal (2) Distribution: Cumulative Area from the LEFT10 and2.575|る國器N西三 勇 RADIATION IN BABY TEETHListed below are amount of radioactive isotope

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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A company produces scooters used by small businesses that find them convenient for making short deliveries. The company is notified whenever a scooter breaks down, and the problem is classified as being either mechanical or electrical. The company then matches the scooter to the plant where it was assembled. The data table to the right contains a random sample of 200 breakdowns. Use the data file and the relative frequency assessment method to complete parts a through c. Electrical Mechanical Total Plant 1 21 52 73 Plant 2 74 53 127 Total 95 105 200 a. What is the probability a scooter was assembled at Plant 2? P(Plant 2) = (Type an integer or a decimal.) b. What is the probability that a scooter breakdown was due to a mechanical problem? P(mechanical) =D(Type an integer or a decimal.) c. What is the probability that a scooter breakdown was due to an electrical problem and the scooter was assembled at Plant 2? P(electrical and Plant 2) = (Type an integer or a decimal.)
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