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Use Sheet 6 of the Excel file to answer the following questions. A company that makes LED light bulbs claims that the bulbs have a
Use Sheet 6 of the Excel file to answer the following questions. A company that makes LED light bulbs claims that the bulbs have a lifetime of 11,000 hours. Quality control tests a random sample of 45 light bulbs to determine if the lifetime is less than 11,000 hours at a confidence level of 0.05. Create a histogram, and calculate x, the t-statistic, and the p-value. From the histogram, can normality be assumed? Pick v x = Ex: 1.234 t = p Since the p-value is Pick > than the significance level 0.05, the null hypothesis Pick Pick v evidence exists that the mean lifetime is less than 11,000 hours
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