QUESTION

# Consider the information given in question 24 and the hypotheses stated in question 25.

Consider the information given in question 24 and the hypotheses stated in question 25. A simple random sample of 41 attempted bank robberies in which the suspect acted alone was selected, the mean amount of money stolen was $3654.60 with a standard deviation of$875.42. In an independent simple random sample of 74 attempted bank robberies in which 2 or more suspects were working together, the mean amount of money stolen was $4134.99 with a standard deviation of$1144.66. If appropriate, use this data to test the hypotheses stated in question 25 at significance level a = .05.

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24.   Suppose the list of all attempted bank robberies is divided into two groups: those where the suspect acted alone, and those where there were 2 or more suspects working together. It is conjectured that the mean amount of money stolen from the bank for bank robberies in which the suspect acted alone is less than the mean amount of money stolen from the bank for bank robberies where there were 2 or more suspects working together. Based on this, using both the appropriate symbol and in words, what is the parameter of interest?

25.   Consider the information given in question 24. Based on this conjecture, state the appropriate null and alternative hypotheses that should be tested.