Mathematics, 17.02.2021 22:20 Shavaila18
Abbie pinta el doble de rapido que Beth y el triple de rapido que Cathie si se tardan 60 minutos en pintar una sala las tres trabajando juntas ¿Que tanto se tardaria Abbie trabajando sola?
Answers: 2
Mathematics, 22.06.2019 03:50, jescanarias22
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
Mathematics, 22.06.2019 07:00, kkartes753
There were 32 volunteers to donate blood. unfortunately, nn of the volunteers did not meet the health requirements, so they couldn't donate. the rest of the volunteers donated 470 milliliters each.
Answers: 1
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