Researchers wanted to know whether there was a difference in comprehension among

Question

Researchers wanted to know whether there was a difference in comprehension among students learning a computer program based on the style of the te They randomly divided 36 students of similar educational level, age, and so on, into two groups of 18 each. Group 1 individuals leamed the sotware using visual manual (multimodal instruction) while group 2 Individuals learned the software using a testual manual (unimodal instruction) The accompanying dat represent scores that the students received on an exam glven to them after they studied from the manuals. Complete parts (a) through (e) E Click the icon to view the data table. aj wwnat is the explanatory vanable ini thes study what is the response var The explanatory variable is the type of manual and the response variable is the esam scores (b) In words, explain what the null typothesis would be for this s?udy, In words, explain what the atemale null and altemative hypotheses symbolically would be for this study Express the Express the null and alternative hypotheses in words. Choose the correct answer below A. The nul hypothesis is that there is no difference in the exam scores based on the type of manual The ahernative hypothesis is that there is a diference in the exam scores based on the type of manual B. The null hypothesis is that there is a difference in the exam scores based on the type of manual The aternative hypothesis is that here is no difference in the exam scores based on the type of manual The null hypothesis is that there is no difference in the exam scores based on the type of manual The dlernative hypothesis is that the students with he textual manual score higher ? C D. The null hypothesis is that that the students with the textual manual scored hi er The alternative hypothesis is that there is no diference in the exam scores based on the type of manual Express the null and alternative hypotheses symbolically, where Textual Manual is the mean one variable Visual Manual andR2 is the mean of the variable Type integers or decimals. Do not round) (c) What would be an appropriate test statistic? O A. An appropriate test statistic would be the product of the sample means O B. An appeopriate test statistic would be the difference between te sample means O C. An appropriate test statistic would be he overal mean ir to contned data O D. An appropriate test staistic would be the sum of the sample means Click to select your answer and then click Check Answer ClearAl ateway

Explanation / Answer

Solution: (c) What would be an appropriate test statistic?

Answer: B. An appropriate test statistic would be the difference between the sample means.

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