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A local church parish wants to raise money to add to their campus. In a sample from a previous fund raising campaign, the parish found that of the 137 people in the sample they contacted, that 67 actually contributed money. Of those that contributed money, the average contribution was $802 with a standard deviation of $220. In the recent fundraising campaign, a sample of 94 people revealed that 50 have contributed money with an average contribution of $1,165 and a standard deviation of $385. When testing (at the 5% level of significance) whether the average amount contributed has increased in the current campaign compared to the previous campaign, what is the test statistic? (please round your answer to 2 decimal places)
What are the potential problems with this experimental design and the procedures used? Revise the design and procedures to address these problems.
Part A: Using Alpha = 0.05, determine if there is a difference in the variance of the driving distance between these two golf clubs. (7 steps)
to get a c in history nandan must average 74 on four tests. scores on the first three tests were 69 74 and 65. what is
You randomly select one card from a 52-card deck. Find the probability of selecting: P(an ace or a 9)
In making a land-use policy decision, a planner had to consider three objectives: the development of the best economic mixture of industrial and residential uses, the preserva tion of sensitive environmental areas, and satisfying the largest indus..
Find the rectangular coordinates of the point Q(-5, -35°) and Write the rectangular equation x2 + y2 = 9 in polar form
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
What is the lower bound of the 95% CI of the temperature slope for the linear regression predicting average crawling age? Round your answer to three decimal places.
Considering that the relative ages of members of these two groups were not mentioned, critique the internal validity of the experiment.
customers come to a store as a poisson process with rate 12 per hour.a compute the probability of three customers
What is wrong with this design? What confounds could be leading to the results of improved memory and problem-solving skills?
What are primary and secondary data sources of market information? Which should be conducted first? Explain what is data mining?
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