A lightbulb manufacturer claims that their bulbs last 8,000 hours on average. Assume lightbulb lifespan is normally dis A sample of 10 bulbs is collected and tested until failure. The sample dataset is as follows given in hours of run time un burnout for each lightbulb: 7520, 8130, 7860, 8290, 8010, 7640, 7100, 8480, 8220, 8260 You are to test the hypothesis Ho:H=8000- Calculate your test statistic. Answer accuracy to 3 decimal places.

A lightbulb manufacturer claims that their bulbs last 8,000 hours on average. Assume lightbulb lifespan is normally dis A sample of 10 bulbs is collected and tested until failure. The sample dataset is as follows given in hours of run time un burnout for each lightbulb: 7520, 8130, 7860, 8290, 8010, 7640, 7100, 8480, 8220, 8260 You are to test the hypothesis Ho:H=8000- Calculate your test statistic. Answer accuracy to 3 decimal places.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Dr. Maddan's eye drops are supposed to cause significant reduction is eye redness. The following table shows the results of a recent study where a random sample of individuals took part in a placebo controlled study. No Reduction in Redness Reduction in Redness Total Eye Drops 120 220 340 No Eye Drops Total 120 140 260 240 360 600 With 5% level of significance, determine if eye redness reduction is dependent upon taking the eye drops. Provide, a. the Chi-square statistic. b. the critical value or the p-value. c. Your decision on whether or not to reject Ho.