Is it normal? Is it reasonable to treat the following sample as though it comes from an approximately normal population? Explain.
Answer to relevant QuestionsIs it normal? Is it reasonable to treat the following sample as though it comes from an approximately normal population? Explain. More light bulbs: Someone claims to have developed a new lightbulb whose mean lifetime is 1800 hours with a standard deviation of 100 hours. A sample of 100 of these bulbs is tested. The sample mean lifetime is 1770 ...Describe the effect, if any. that the size of a sample has in assessing the normality of a population. A simple random sample of 140 residents in a certain town was polled the week after the Super Bowl, and 75 of them said they had watched the game on television. a. Construct a 95% confidence interval for the proportion of ...Defective electronics: A simple random sample of 200 electronic components was tested, and 17 of them were found to be defective. a. Construct a 99% confidence interval for the proportion of components that are defective. b. ...
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