Mathematics, 15.04.2020 01:54 colemanjosiah03
The lifetime of certain type of light bulb is normally distributed with a mean of 1000 hours and a standard deviation of 110 hours. A hardware store manager claims that the new light bulb model has a longer average lifetime. A sample of 10 from the new light bulb model is obtained for a test. Consider a rejection region Find the probability of a type I error (round off to third decimal place).
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Mathematics, 21.06.2019 15:00
Which statements regarding the diagram are true? check all that apply.
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Mathematics, 21.06.2019 19:30
Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.
Answers: 1
The lifetime of certain type of light bulb is normally distributed with a mean of 1000 hours and a s...
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