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Calculate the standard error. May normality be assumed? (Round your answers to 4 decimal places.)
Standard Error
(a) n = 26, π = .50
(b) n = 59, π = .42
(c) n = 93, π = .41
(d) n = 486, π = .004
Of 55 bank customers depositing a check, 20 received some cash back.
(a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)
The 90% confidence interval is from__ to_?
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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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