Use the Sketch Pad to produce any needed graphs. Does handedness impact typing speed?

Use the Sketch Pad to produce any needed graphs. Does handedness impact typing speed? A random sample of students was taken from a typing class. Students were then giving a typing test where the number of words typed correctly per minute was recorded. Does the data suggest a difference between right-handed and left-handed students? Download/Display Data Left Right 15 20 21 14 14 17 11 19 13 12 19 16 17 22 16 15 18 10.

Expert Solution

Null hypothesis: There is no significant difference between the means of Left and Right handed students

Alternative Hypothesis: There is significant difference between the means of Left and Right handed students

Level of significance is assumed to be 0.05

Critical value of t for LOS 0.05 is : ±2.119907
We find the P-Value for test statistic as 0.7445

>t value is lies between tcrit and P-value > 0.05 so we cannot reject Null hypothesis

=> conclude that there is no significant difference between the means of Left and Right handed students

orchestra answered 2 years ago

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