Mathematics, 05.12.2019 18:31, jpdvolleybal8260
An srs of 450 450 high school seniors gained an average of ¯ x = 20 x¯=20 points in their second attempt at the sat mathematics exam. assume that the change in score has a normal distribution with standard deviation σ = 49 σ=49 . (a) find a 95 % 95% confidence interval for the mean change in score μ μ in the population of all high school seniors. (enter your answers rounded to two decimal places.)
Answers: 1
Mathematics, 21.06.2019 15:40, Prettygirlbuggy
Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130
Answers: 2
An srs of 450 450 high school seniors gained an average of ¯ x = 20 x¯=20 points in their second att...
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