Question
Suppose that a recent article stated that the mean time spent in jail by a first time convicted burglar is 3 7 years A study
Suppose that a recent article stated that the mean time spent in jail by a first time convicted burglar is 3 7 years A study was then done to see if the mean time has decreased in recent years A random sample of 38 first time convicted burglars was recently selected The mean length of time in jail from the survey was 2 7 years Suppose that it is somehow known that a the population standard deviation is 2 years Conduct a hypothesis test at the a 0 05 significance level to determine if the mean length of jail time has decreased Assume the distribution of the jail times is approximately normal Ho H Select an answer P value years years Enter the correct symbol and value round your answer to 4 place values
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