Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure.Use ? = .05H0: μd=0H1: μd≠0T statistic: t = 1.053, P value = 0.327Degrees of Freedomn-1 = 8-1= 7critical value2.3646If t is less than 2.3646, or greater than 2.3646, reject the null hypothesisLevel of significance:α=0.05question:what a type 1 error and type 2 error would mean. Is it possible that we could have committed a type 2 error in conducting the test One-Sample StatisticsN❘ Mean Std. Deviation Std. Error Mean84.000010.743773.79850One-Sample TestSignificancedf One-Sided p Two-Sided p164327One-Sample Effect SizesCorneal thicknessdifference (normal-glaucoma) microrisCorneal thicknessdifference (normal-glaucoma) micronsStandardizer Point Estimate10.74377Corneal thicknessdifference.(perreal-Cohen's d372diaucoma) micronsHedges correction12.09607.331a. The denominator used in estimating the effect sizes.Coh n's d uses the sample standard deviation.Hedges' correction uses the sample standard deviation, plus a correction factor.t1.053Test Value = 0MeanDifference95% Confidence Interval of theDifferenceLowerUpper4.0000095% Confidence IntervalLowerUpper-.359-.3191.079.958-4.982012.9820

Introduction: The output of a paired t-test is given.

Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Use ? = .05 H0: μd=0 H1: μd≠0 T statistic: t = 1.053, P value = 0.327 Degrees of Freedom n-1 = 8-1= 7 critical value 2.3646 If t is less than 2.3646, or greater than 2.3646, reject the null hypothesis Level of significance: α=0.05 question: what a type 1 error and type 2 error would mean. Is it possible that we could have committed a type 2 error in conducting the test

Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Use ? = .05 H0: μd=0 H1: μd≠0 T statistic: t = 1.053, P value = 0.327 Degrees of Freedom n-1 = 8-1= 7 critical value 2.3646 If t is less than 2.3646, or greater than 2.3646, reject the null hypothesis Level of significance: α=0.05 question: what a type 1 error and type 2 error would mean. Is it possible that we could have committed a type 2 error in conducting the test

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 25SGR

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