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The Department of Finance provided the following information regarding the new retail jobs created in a sample of 5 cities in 2009. The average number of new jobs created per city estimated to be 3320. We want to determine whether there has been a significant decrease in the average number of jobs created. State the null and the alternative hypotheses.
The time required to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions. a) What is the probability of completing the..
For each sex separately, calculate the percentage who were opposed to the legalization of marijuana. Explain why these percentages are evidence.
If the manufacturer wanted the mean profit per coat (i.e., the expected profit) to be more than $30, what is the maximum reduction that can be offered per defect in the sample.
a basketball team at a university is composed of ten players. the team is made up of players who playthe position of
With the correct frequencies, the mode and the median were given as Ksh. 139000 and Ksh. 135000 respectively. Determine the correct frequencies.
The T84 calculator? Shaquille O'Neal is a professional basketball star who had a reputation for being a poor free throw shooter. As of this writing, he made 5155 of the 9762 free throw that he attempted,
Compute the average earning per trade. Assume also that the sample standard deviation was $0.5 million and compute a 95% confidence interval for the average earning per trade for all trades made by this banker.
The life of cell batteries is normally distributed with a mean of 82.5 hours and a standard deviation of 21.5 hours.
Given that the landowner pays for the soundings test and the test indicates that gas is present, what is the landowner's revised estimate of the probability.
the local county is considering a budget proposal that would reallocate funding to renovate the city pools. a survey is
a box has ten coins. six of the coins have a probability of heads 310. the other four coins have probability of heads
Draw a scatterplot of y = August temperature versus x = latitude.- Is the pattern linear or curvilinear? What is the direction of the association?
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