Perform the Required Hypothesis Test by Using a Mann-Whitney Test

question 20

Essay

Perform the required hypothesis test by using a Mann-Whitney test. Use a normal approximation for M. Find the meanand standard deviation of M, the value of M and of the test statistic, the critical value(s), and state your conclusion.
-A teacher uses two different CAI programs to remediate students. Independent simple random samples of 11 students from program I and 14 students from program II are selected. Results for each group on a standardized test are listed in the table below. At the 0.05 level of significance, do the data provide sufficient evidence to conclude that the mean score for students going through program I differs from the mean score for students going through program II? $$\begin{array} { r | r } \text { Program I } & \text { Program II } \\ \hline 60756163 & 66896877 \\ 86696470 & 84808187 \\ 728259 & 78739193 \\ & 9495 \end{array}$$

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Definitions:

Principal Debtor

The main individual or entity responsible for repaying a debt or obligation.

Creditor

An individual, organization, or entity that lends money or extends credit to another party, expecting repayment.

Verbal Agreement

An agreement made through spoken words and not formally recorded in writing, yet is legally binding.

Specific Performance

A legal remedy where a court requires a party to fulfill their obligations under a contract, rather than providing a financial compensation.