# At α = 0.025, can it be concluded that the mean is less than \$5400?

Nov 6th, 2015
FratBro23
Category:
Statistics
Price: \$5 USD

Question description

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 α = 0.025, can it be concluded that the mean is less than \$5400?

(Top Tutor) Daniel C.
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FratBro23
Nov 6th, 2015
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