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# A publisher claims that students who receive instruction in mathematics based on a new version of a textbook will score higher on end - of - semester...

Please use the attached picture to answer

A. Null hypothesis

B. Alternative hypothesis

C. Statistical Test

D. Critical Region/Value

E. Decision

A publisher claims that students who receive instruction in mathematics based on a new version of atextbook will score higher on end - of - semester grades than those who use the old version . Twentystudents are randomly assigned to one of two classes : either the experimental group ( who use thenew version ) or the control group ( who use the old version ) . Below are the end - of - semester grades( out of 100% ) for the two classesExperimental group : 88 67 94 56 76 82 84 99 75 85Control group86 , 92 . 52 , 69 . 71 , 81 , 79 90 . 82 . 80Significance level = 01