Solve the equation.
5(5x + 1) = 3x - 9x
x=
(Type an integer or a simplified fracti...
Mathematics, 10.02.2020 20:54 keundrecrowe3552
Solve the equation.
5(5x + 1) = 3x - 9x
x=
(Type an integer or a simplified fraction.)
Answers: 2
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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
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