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A social worker has been assigned to assess the effectiveness of the afterschool program in reducing juvenile violence rate (JVR) in her community. On average, the juvenile violence rate in the city is 13.5 (per 100,000) with the standard deviation of 1.5. the juvenile violence rate in community is now 12.7. Is the afterschool program an effective program in reducing JVR? Follow step 2 to 5 of t-test and discuss the result.
Blood. Only 4% of people have Type AB blood. a) On average, how many donors must be checked to find someone with Type AB blood?
Recently, the head of the Federal Deposit Insurance Corporation (FDIC) revealed that the agency maintains secret list of banks suspected of being in financial.
Did the class demonstrate that the percentage was higher in Owensboro, KY? Use a = 0.01 level of significance.
purdue students are able to connect with itap server to use some software remotely on their own computer. assume that
Use the Bonferroni procedure to make the post hoc test. In which week do we first see significant differences compared to baseline?
the average age for licensed drivers in a county is micro 42.6 ? 12 and the distribution is approximately normal. a
Use your fitted line to guess a simple relationship between x and y. (In many applicationsto science and social science, data is transformed before regression is employed. The most commonly used transformations are power transformations and logari..
Batch is acceptable. What sample size is recommended for the hypothesis test? Use 30 hours as an estimate of the population standard deviation.
Hardluck Harry has a batting average of .200 (i.e., a 20 percent chance of a hit each time he's at bat). Scouts for a rival baseball club secretly observe Harry's performance in 12 random times at bat. What is the probability that Harry will get at l..
The data to be analyzed consisted of the number of people who rated Crest highest before reading the ad and the number who rated it highest after reading.
The average labor charge for automobile mechanics is $54 per hour. The standard deviation is $4. Using Chebyshev's theorem, find the percentage of data values that will fall in the range of $48 to $60.
What is the probability that in a sample of 10 pieces: 5 or more will be defective?
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