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The breaking strength of hockey

In a sample of 100 steel wires the average breaking strength is 50 kN, with a standard deviation of 2 kN.a. Find a 95%
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2. asked by Don't get it!! :(
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The breaking strength of hockey stick shafts made of two different graphite kevlar composites yields the following results .
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2. 74 views
A manufacturer of sports equipment claims that the new fishing line has a mean breaking strength of at least 8 kilograms. Test
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2. asked by Kori
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The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 166 and a variance of 4.
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2. asked by Anna Swain
3. 506 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 170 and a variance of 4.
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2. asked by Lee Ann
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The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9.
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2. asked by Kristen
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The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 145 and a variance of 25.
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2. asked by buffy
3. 547 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed with a mean of 175 and a variance of 4. The
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2. asked by Andrew
3. 374 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 173 and a variance of 9.
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2. asked by Anonymous
3. 495 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9.
1. 1 answer
2. asked by Anonymous
3. 480 views