Question
H : 0 0 H The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the
H : 0 0 H The breaking strengths of cables produced by a certain company are approximately normally distributed. The company announced that the mean breaking strength is 2150 pounds, with a standard deviation of 188. 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 H they would use for this test. > O > O = O S
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Probability And Statistics For Engineers And Scientists
Authors: Anthony Hayter
3rd Edition
495107573, 978-0495107576
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