A manufacturer uses a new production method to produce steel rods. A random sample of 3 st rods resulted in lengths with a standard deviation of 3.42 cm. At the 0.01 significance level, usi critical value method, test the claim that the new production method has lengths with a standa deviation different from 3.13 cm, which was the standard deviation for the old method. Enter the smallest critical value. (Round your answer to nearest thousandth.)
A manufacturer uses a new production method to produce steel rods. A random sample of 3 st rods resulted in lengths with a standard deviation of 3.42 cm. At the 0.01 significance level, usi critical value method, test the claim that the new production method has lengths with a standa deviation different from 3.13 cm, which was the standard deviation for the old method. Enter the smallest critical value. (Round your answer to nearest thousandth.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:A manufacturer uses a new production method to produce steel rods. A random sample of 3 steel
rods resulted in lengths with a standard deviation of 3.42 cm. At the 0.01 significance level, using the
critical value method, test the claim that the new production method has lengths with a standard
deviation different from 3.13 cm, which was the standard deviation for the old method.
Enter the smallest critical value. (Round your answer to nearest thousandth.)
1. Extract Information:
2. Original Claim:
3. Hа
H;:
| 4. Distribution (Graphically):
6. Test Statistic:
7. Statistical Conclusion:
8. Final Words:
5. Critical Value(s):

Transcribed Image Text:A simple random sample of men who regularly work out at Mitch's Gym is obtained and their resting
pulse rates (in beats per minute) are listed below. Use a 0.01 significance level to test the claim that
these sample pulse rates come from a population with a mean less than 72 beats per minute (the
mean resting pulse rate for men). Use the p-value method of testing hypotheses.
6175 65 55 66 73 65 53 77 49 57 67
Enter the p-value. (Round your answer to nearest thousandth.) When using tables to find a tight
range for the p-value, enter one of the boundaries of the interval (not 0 or 1) found using the tables.
1. Extract Information:
2. Original Claim:
3. На
| 4. Test Statistic:
6. p-Value:
5. Distribution (Graphically):
| 7. Statistical Conclusion:
8. Final Words:
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