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Mathematics, 18.02.2021 01:00 314180

PLS HELP ITS URGENT!! ANSWER FOR POINTS A random sample of 95 halogen light bulbs had a mean life of 531 hours with a standard
deviation of 33 hours. Construct a 90% confidence interval for the mean life of all light bulbs
of this type.
A) 525.4 < u <536.6
B) 515.3< u < 526.9
C) 527.2 < u <531.8
D) 523.8 < u < 529.5

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PLS HELP ITS URGENT!! ANSWER FOR POINTS A random sample of 95 halogen light bulbs had a mean life o...

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