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Adults were randomly select for a poll and asked if they favored or opposed federal tax dollars being used for foreign aid. Of the 882 polled, 415 were opposed. A politician claims that more than 50% of adults are opposed to federal dollars being used for foreign aid. Use a 0.01 significance level to test the claim. State the final conclusion.
Your friends are big fans of Wizards of Waverly Place, a Disney Channel show about a family with three children who are training to be wizards.
Determine whether there is suffcient evidence to support the clain that the new balls have bounce heights with a mean different from 92.84 in. Does it appear that the new baseballs are different?
a study of 24 graduates of four-year colleges revealed the mean amount owed by a student in student loans was 14381.
What role does the binomial distribution play in the sign test, and when is it permissible to use the normal approximation in carrying out the test?
Clearly identify the independent and dependent variables you would study, including the number of levels of the independent variable.
Based upon the output, what is your educated guess as to the relationship between one's gender and his/her performance on the MCAS test?
A standard deviation of $12. Three solar homes reported monthly utility bills of $55, $53, and $51. Which of the following statements is true?
Construct a 95% confidence interval estimate of their mean weight.
Suppose she responded within two hours to the message he left this morning. What is the probability that Zach was communicating with her via e-mail?
Characterize the relationship between annual salary and age. What is the pattern of the relationship? How strong is the association?
Make a plot of the total number of tornadoes by year. Does a linear trend over years appear reasonable? Are there any outliers or unusual patterns? Explain your answer.
List the sample space. Using the sample space list, determine the probability that the customer will select a sample with exactly one defect.
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