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1.) A survey showed that 850 of the 1600 adult respondents who live in a household without landline phones.
(a) Construct a 95% confidence interval estimate of the proportion of adults living in a household without landline phones. Show all work. Include description of how confidence interval was constructed.
(b) Describe the confidence interval in everyday language.
2.) A random sample of 900 SAT scores has a sample mean of 1100. Assume that SAT scores have a population standard deviation of 300.
(a) Construct a 95% confidence interval estimate of the mean SAT scores. Show all work. Include description of how confidence interval was constructed.
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
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Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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