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Parental pressure and gender. The Pew Research Center Poll in given Exercise also reported that 65% of the men and 62% of the women thought parents are placing too little pressure on their children to succeed in school. Assuming that the respondents were 52% women, compare the proportions with a significance test and give a 95% confidence interval for the difference. Write a summary of your results.
Exercise Parental pressure to succeed in school. A Pew Research Center Poll used telephone interviews to ask American adults if parents are pushing their kids too hard to succeed in school.
Of those responding, 64% said parents are placing too little pressure on their children. Assuming that this is an SRS of 1200 U.S. residents over the age of 18, give the 95% margin of error for this estimate.
A study of voting chose 663 registered voters at random shortly after an election. Of these 72% said they had voted in the election. Election records show that only 56% of all registered voters voted in the election. The boldface number (that i..
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
An accounting professor at a state university in Vermont recently gave a three-question multiple-choice quiz. What is the probability of getting a perfect score if you were forced to guess at each question?
Find ten consecutive composite numbers. Find the prime factors of 1147 and of 1716. Are there any common factors?
The mean is 75 and the standard deviation is 6. If 1200 students took the test, approx how many students would be expected to score between 69 and 81?
Testing equality of variances - evidence of a difference in the variability of monthly talking time on cell phones for men and women?
Let X be the difference and let Y be the sum of the number of heads obtained when Car- los and Michael each flip a fair coin twice. Describe the underlying space S of this random experiment and show the mapping from S to SXY , the range of the pair ..
Identify a business research topic and define the research questions for the identified problem or opportunity
A jeweler at Tiffany & Company computes the value of the linear correlation coefficient for pairs of sample data consisting of Tiffany prices for gold wedding rings and the corresponding prices at a discount store.
the annual assets for first michigan corporation is aproximately normally distributed with standard deviation 50. the
calculate the mean deviation form 1 arithmetic mean 2 median 3 mode in respect of the marks obtained by nine students
At the .05 significance level, can we conclude that the guideline is still reasonable?
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