Review(1a):A two tailed test is only(a) for all tests where rejecting the null hypothesis is the desired outcome.(b) to minimize the possibility of type 1 error.(c) when it is theoritically posslble for the mean of the first treatment group to be eitherhigher or lower than the mean of the second group.(d) where there is strong empirical or theoritical reason to predict that mean of one treatmentgroup will be higher than the mean of the second group.(e) both (c) and (d)

We have given the following statement about two tailed test

Answered: Review(1a): A two tailed test is only…

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter5: A Survey Of Other Common Functions

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Review(1a):

A two tailed test is only

(a) for all tests where rejecting the null hypothesis is the desired outcome.

(b) to minimize the possibility of type 1 error.

higher or lower than the mean of the second group.

(d) where there is strong empirical or theoritical reason to predict that mean of one treatment

group will be higher than the mean of the second group.

(e) both (c) and (d)

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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