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Question: Assume that the population is 0.55. Compute the standard error of the sample proportion for the following sample sizes:
a. 100
b. 200
c. 500
d. 1000
Statistics and Probability, Statistics
There are 2 white balls and 8 red balls in an urn. Consider selecting one ball at a time from the urn. What is the probability that the first ball is red and the second ball is also red? Express the probability in fracti ...
Borel wants to be a millionaire when he retires in 40 years. How much does he have to save each month if he can earn a 10% annual return? (round off all answers to 2 decimal places)
(a) Suppose you purchase a 3-year zero-coupon bond with face value of $1000 and a price of $850. What is the bond's yield? If you hold the bond to maturity, what will be your effective annual return? (b) Now suppose you ...
Let's pretend that in a hospital, 7% of patients are "high-risk" while the others are "lower-risk". For patients that are high-risk, 75% will be re-admitted within 30 days. For "lower-risk" patients, the 30day re-admitta ...
A national report indicates that the mean and standard deviation of the ACT scores of incoming freshman at American public universities are 24.6 and 6.2, respectively. A sample of 30 incoming freshmen at a small, suburba ...
Parents who did not finish high school have SAT math scores X with mean 451 and standard deviation 103. Scores Y of children of parents with graduate degrees have mean 567 and standard deviation 104. Perhaps we should st ...
Use the information below to answer the questions that follow : While the Mars candy company no longer reports the percentages of each color M&M that are produced, they had previously reported the following: 13% brown 1 ...
Describe the steps you took. There are 652 males, 396 say they have been to dentist in past year. Give a confidence interval for 90% of the population proportion .
You randomly sample 50 theaters in the United States. You ask those theaters how much they charge for a large popcorn, and you get a sample mean of $6. Then, you make confidence interval using this data with the lower li ...
A researcher wants to determine if there is a relationship between media outlet (social media, newspapers, and radio) and interest in media by population group (youth, young adults, and older adults). What type of statis ...
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