##HW6 # Problem 7 RStudio code Do left-handed or right-handed people make more money?

One study (Ruebeck C., et.al, Handedness and Earnings, Laterality 2007 12 (2): 101 - 120) recorded the hourly earnings for a random sample of 2295 American men, of whom 2027 were right-handed and 268 left-handed.

The right-handed mean earned an average of 13.10 per hour, while the left-handed men earned an average of 13.40 per hour. The sample standard deviation for both left-handed and right-handed workers was about 7.90. Test the hypothesis that the average earnings for left-handed and right-handed men are the same.

Be sure to state the null and alternative hypotheses, compute the P-value and use the significance level of 5 %.

```{r} # Insert R code here

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