Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. A

[answerhappygod]

Suppose That A Recent Article Stated That The Mean Time Spent In Jail By A First Time Convicted Burglar Is 2 5 Years A 1 (62.84 KiB) Viewed 8 times

Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. A study was then done to see if the mean time has increased in the new century. A random sample of 26 first-time convicted burglars in a recent year was picked. The mean length of time in jail from the survey was 3 years with a standard deviation of 1.8 years. Suppose that it is somehow known that the population standard deviation is 1.5. If you were conducting a hypothesis test to determine if the mean length of jail time has increased, what would the null and alternative hypotheses be? The distribution of the population is normal. State the null and alternative hypotheses. a. Ho: M b. Ha: 2.5 2.5 The National Institute of Mental Health published an article stating that in any one- year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. If you were conducting a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population, what would the null and alternative hypotheses be? a. Ho: b. Ha: