Question Translate the excerpt below into a confidence interval for p and approximate the value of the level of confidence, c.In a survey of 8487 adults, 30.6% said they were taking vitamin E as a supplement. The survey’s margin of error is plus or minus 1%. Looking for a Similar Assignment? Order now and Get 10% Discount! […]
Question A researcher wishes to estimate, with 95% confidence, the population proportion of adults who think the president of their country can control the price of gasoline. Her estimate must be accurate within 3% of the true proportion.a) No preliminary estimate is available. Find the minimum sample size needed.b) Find the minimum sample size needed, using a prior […]
Question In a survey of 9000 women, 6431 say they change their nail polish once a week. Construct a 99% confidence interval for the population proportion of women who change their nail polish once a week. Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”
Question In a survey of 2945 adults, 1473 say they have started paying bills online in the last year.Construct a 99% confidence interval for the population proportion. Interpret the results Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”
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