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Question: Consider the two following scenarios:
a. The number of new workers hired per week in your county has a high positive correlation with the average weekly temperature. Can you conclude that an increase in temperature causes an increase in the number of new hires? Discuss.
b. Suppose the stock price and the common dividends declared for a certain company have a high positive correlation. Are you safe in concluding on the basis of the correlation coefficient that an increase in the common dividends declared causes an increase in the stock price? Present other reasons than the correlation coefficient that might lead you to conclude that an increase in common dividends declared causes an increase in the stock price.
For the most recent year available, the mean annual cost to attend a private university in the United States was $20,182. Assume the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,400.
calculate the Pearson product-moment correlation coefficient and test for significance at the .01 level and calculate a t-test and test for significance at the .05 level, 2-tailed level of significance.
Research by the Illinois Banking Company revealed that only 10 percent of their customers wait more than five minutes to do their banking. Management considers this reasonable and will not add more tellers unless the proportion becomes larger than..
you conducted a chi-square goodness of fit test in your asci 691 capstone project. unfortunately you did not get the
Determine whether the following definitions are stipulative, lexical, precising, theoretical, or persuasive.- "Gene" means the hereditary unit that occupies a fixed chromosomal locus, which through transcription has a specific effect on phenotype an..
suppose that the proportions of blood phenotypes in a particular population are as followsa nbspnbspb nbspnbspab
a. How many of the employees would you expect to have voted for President Bush? b. All of the employees indicated that they voted in the 2004 presidential election. Determine the probability of this assuming they followed the national trend. c. Ei..
suppose y is the daily revenue for some company where ey 10000 and vary 540000 and 734.85a if y is normally
the offices of president vice president secretary and treasurer for an environmental club will be filled from a pool of
A 95% confidence interval for the average difference between the two reaction times (traditional - LED) was (-171.37, 174.44). Which of the following is the appropriate conclusion?
How many test runs of the new Volvo S40 model are required for determining its average miles-per-gallon rating on the highway to within 2 miles per gallon with 95% confidence, if a guess is that the variance of the population of miles per gallon i..
if z is a standard normal random variable the area between z 0.0 and z 1.20 is 0.3849 while the area between z 0.0
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