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The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the mean breaking strength is 2130 pounds. with
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The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the mean breaking strength is 2130 pounds. with
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Question 218174:
The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the mean breaking strength is 2130 pounds. with a standard deviation of 183.5 . A consumer protection agency claims that the actual standard deviation is higher. Suppose that the consumer agency wants to carry out a hypothesis test to see if its claim can be supported. State the null hypothesis Ho and the alternative hypothesis H1 they would use for this test.
You can put this solution on YOUR website! The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the mean breaking strength is 2130 pounds. with a standard deviation of 183.5 . A consumer protection agency claims that the actual standard deviation is higher. Suppose that the consumer agency wants to carry out a hypothesis test to see if its claim can be supported. State the null hypothesis Ho and the alternative hypothesis H1 they would use for this test.
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Ho: u = 2130 (to be tested)
H1: u > 2130 (the claim)
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Cheers,
Stan H.
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