Make confidence interval for population proportion of women
In the survey of 8000 women, 5431 say they change the nail polish once a week. Create the 95% confidence interval for population proportion of women who change the nail polish once a week.
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Find minimum sample size required to create 90% confidence interval for population mean. Suppose poplulation standard deviation is .25 inch.
Determine mean and median of coffee content again. Which measure of central tendency, mean or themedian was affected more by data entry error?
Determine minimum sample size needed, using prior study which found that 32% of respondents said they have high-speed Internet access. ii) No preliminary estimate is available.
Create 95% confidence interval for population mean time using the standard deviation of 0.05 minutes. Which confidence interval is wider? Describe.
Find heuristics that decision makers might utilize in making estimates in situations given below. Describe how biases might emanate from use of the heuristics.
Sketch the game matrix of one-person (vs. Nature). What must probability of rain (P) be for Alice to take an umbrella with her?
If 1 retailer has two more stores than other one it will have 65% of total sales. Develop game matrix of two-person game illustrating possible actions and payoffs.
If price for the ticket was $200 TT per ticket, promoter was eager and able to offer 4000 Mother's Day Ball tickets for sale and 8000 ticket if price was $600 TT. Deduce supply curve, for tickets to Mother's Day Ball.
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