Make sure to answer all 5 steps to the question

QUESTION 10 The average cost for teeth straightening with metal braces is approximately $5400. 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 $5250 with standard deviation of $629. At a = 0.025, can it be concluded that the mean is less than $5400? Step 1: State hypotheses by filling in the symbol (=, , or not equal) and the population mean: Ho: P H1: H Step 2: Find the critical value (from the table) (example: 2.345 or -2.345 or +/- 2.345) Critical t value is: Step 3: Compute the test value using the formula (round to two decimal places, example 6.45): T test value is: Step 4: Reject the null or do not reject the null (type in either Reject the null or do not reject the null only): Step 5: Conclusion sentence (type in either is or is not only, to reflect what you found): There enough evidence to support the claim that the mean cost of braces is less than $5400. QUESTION 11