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Mathematics, 22.06.2019 03:50, jescanarias22
Arandom sample of n = 25 observations is taken from a n(ยต, ฯ ) population. a 95% confidence interval for ยต 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 โ ฮฑ)% needed.
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Mathematics, 22.06.2019 05:10, Mathcat444
Which graph represents the same relation as the table below? x f(x) โ2 5 0 1 1 โ1 2 โ3
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Mathematics, 22.06.2019 05:30, carsondelane13
X+ 4y โ z = โ14 5x + 6y + 3z = 4 โ2x + 7y + 2z = โ17
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