A manufacturer claims that their calculators are 6.800 inches long.February 27, 2020
In a sample of 17 small candles, the weight is found to be 3.72 ouncesFebruary 27, 2020
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 720 hours. A
random sample of 51 light bulbs as a mean of 701.6 hours with a standard deviation of 62 hours. At an α=0.05, can you support the company’s claim using the test statistic?
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