Chapter 5, Section 1, Exercise 012 the absolute tolerance is +/-0.01 LINK TO TEX

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Chapter 5, Section 1, Exercise 012

the absolute tolerance is +/-0.01

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Chapter 5, Section 1, Exercise 012

The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution.

Test H0 : 1=2 vs Ha : 1>2 when the samples have n1=n2=30, x¯1=35.2, x¯2=33.6, s1=1.29, and s2=1.18. The standard error of x¯1-x¯2 from the randomization distribution is 0.32.

Find the value of the standardized z-test statistic.

Round your answer to two decimal places.

z=

the absolute tolerance is +/-0.01

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Explanation / Answer

Z = [(x¯1-x¯2)-0]/se, 0 is the difference testing for from the hypothesis.

Z = (35.2-33.6)/0.32 = 5

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