Mathematics, 19.11.2019 02:31 katherinelondon4002
The lb company has long manufactured a light bulb with an average life of 5400 hours. company researchers have recently developed a new filament which they believe will extend bulb life. to test this claim, the company hires a statistician, who takes a random sample of 95 bulbs and measures the amount of time until each bulb burned out. the mean lifetime of the sample of bulbs is 5483 hours. (we may assume as known that the population is normally distributed with a standard deviation of 500 hours.) can we conclude at a 6% level of significance that the new filament yields a longer bulb life?
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Mathematics, 21.06.2019 16:20
Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function
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Mathematics, 21.06.2019 16:30
You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer
Answers: 3
The lb company has long manufactured a light bulb with an average life of 5400 hours. company resear...
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