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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200 people were randomly sampled and asked what they regularly eat for breakfast or lunch. Each person was identified as either a consumer or a non consumer of high-fiber cereals, and the number of calories consumed at lunch was measured and recorded. These data are summarized below; Consumer of high fiber cereals Non consumer of high fiber cereals η1 =41 η2 = 159 Mean 1 =603 Mean 2 =639 Stanadard deviation 1 = 110 Standard deviation 2 = 141 If the scientist claims that people who eat high fiber cereals for breakfast do consume on average fewer calories for lunch than people who don’t eat high fiber cereals for breakfast, and if it is true, high fiber cereal manufacturer will be able to claim another advantage of eating their products-potential weight reduction for dieter. REQUIRED Are there sufficient evidence at 5% significance level to support the above claim?
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