Question: . LED light bulbs are renowned for their longevity, outlasting incandescent, halogen, and fluorescent bulbs. Typically, an LED bulb can last over 5 years. These

. LED light bulbs are renowned for their longevity, outlasting incandescent, halogen,
and fluorescent bulbs. Typically, an LED bulb can last over 5 years. These bulbs are
not only energy-efficient but also come in various styles, shades, and shapes.
Powergen Italia, an Italian company that manufactures LED light bulbs asserts that
their long-life bulb can last, on average, more than 50,000 hours. A statistician
decided to test this claim. He selected a random sample of 100 bulbs from the
manufacturer and recorded the time until each bulb stopped working. Based on this
sample, can we confidently assert, with a 5% level of significance, that the manufacturers
claim about the average lifespan of their bulbs is accurate? The data for this test is located in the
Bulbs tab of the Excel file Week 13 ASMT Data.xlsx Excel file.

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