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An auditor revlewed 25 oral surgery Insurance clalms from a particular surgical office, determining that the mean out-of-pocket patlent billing above the relmbursed amount was $28011 with a standard devlation of $77.78. At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? (a-1 H us $250 versus H: p> $250. Choose the right option. a. Reject He if ts <1.71 b. Reject He if tais >1.71 Oa Ob

An auditor revlewed 25 oral surgery Insurance clalms from a particular surgical office, determining that the mean out-of-pocket patlent billing above the relmbursed amount was $28011 with a standard devlation of $77.78. At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? (a-1 H us $250 versus H: p> $250. Choose the right option. a. Reject He if ts <1.71 b. Reject He if tais >1.71 Oa Ob

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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An audltor revlewed 25 oral surgery Insurance clalms from a particular surgical office, determining that the mean out-of-pocket patlent billing above the relmbursed amount was $280.11 with a standard devlation of $77.78. At the 5 percent level of significance, does this sample prove a vlolation of the guldellne that the average patlent should pay no more than $250 out-of-pocket? (a-1) Hi u s $250 versus H,: u> $250. Choose the right option. a. Reject Hg if tals <1.711 b. Reject Hg If tale > 1.711 a (a-2) Calculate the test statistic. (Round your answer to 2 decimal places.) Test statistic (a-3) The null hypothesis should be rejected. True O False (a-4) The evidence does show that the average out-of-pocket expense is greater than $250. O True O False (b) Is this a close decislon? O Yes O No
Transcribed Image Text:An audltor revlewed 25 oral surgery Insurance clalms from a particular surgical office, determining that the mean out-of-pocket patlent billing above the relmbursed amount was $280.11 with a standard devlation of $77.78. At the 5 percent level of significance, does this sample prove a vlolation of the guldellne that the average patlent should pay no more than $250 out-of-pocket? (a-1) Hi u s $250 versus H,: u> $250. Choose the right option. a. Reject Hg if tals <1.711 b. Reject Hg If tale > 1.711 a (a-2) Calculate the test statistic. (Round your answer to 2 decimal places.) Test statistic (a-3) The null hypothesis should be rejected. True O False (a-4) The evidence does show that the average out-of-pocket expense is greater than $250. O True O False (b) Is this a close decislon? O Yes O No
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