A Teacher Uses Two Different CAI Programs to Remediate Students$$\begin{array} { rrrr | rrrr }
&&\text { Program I } &&& \text { Program II } \
\hline 60&75&61&63 & 66&89&68&77 \
86&69&64&70 & 84&80&81&87 \
&72&82&59 & 78&73&91&93 \
&&&&&& 94&95
\end{array}$$

Question

A Teacher Uses Two Different CAI Programs to Remediate Students$$\begin{array} { rrrr | rrrr } 
&&\text { Program I } &&& \text { Program II } \
\hline 60&75&61&63 & 66&89&68&77 \
86&69&64&70 & 84&80&81&87 \
&72&82&59 & 78&73&91&93 \
&&&&&& 94&95
\end{array}$$

Examlex · Accepted Answer

The Answer is

\mu _ { R } = 143 , \sigma _ { R } = 18.2665 , R = 90 , z = - 2.90 .

Test statistic:

z = - 2.90

. Critical values

z = \pm 1.96

.
Reject the null hypothesis. There is sufficient evidence to support the hypothesis that the two programs pr different results.

A Teacher Uses Two Different CAI Programs to Remediate Students

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A Teacher Uses Two Different CAI Programs to Remediate Students

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Correct Answer:VerifiedShow Answer

Correct Answer:
Verified