- Cost Of Braces The Average Cost For Teeth Straightening With Metal Braces Is Approximately 5416 A Nationwide Franchise 1 (188.08 KiB) Viewed 23 times
Part D: Make the decision.
Part E: Summarize the results.
Cost of Braces The average cost for teeth straightening with metal braces is approximately $5416. A nationwide franchise thinks that its cost is below that figure. A random sample of 28 patients across the country had an average cost of $5228 with a standard deviation of $623. At a= 0.025, can it be concluded that the mean is less than $5416? Assume that the population is approximately normally distributed. Part 1 of 5 (a) State the hypotheses and identify the claim. HOME $ 5416 not claim HMS $5416 claim This hypothesis test is a one-tailed test. Part: 1/5 Part 2 of 5 (b) Find the critical value(s). Round the answer(s) to at least three decimal places. If there is more than one critical value, separate them with commas. Critical value(s):