The choice of classes in a histogram can change how the distribution appears has no impact on the appearance is dono randomly

Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week.   Participant Stress 1 Stress 2 Difference Score (Di) (Di - Mdiff)2 1 22 22 0   2 32 34 -2   3 24 25 -1   4 28 30 -2   5 26 29 -3   What is the SS of the mean differences (i.e., Σ(Di - Mdiff)2)? Round to 2 decimal places.

What are some of the most basic statistic formulas used in excel for the Hospitality carrier field?

draw a histogram that is symmetric but not mound-shaped

What effect does an outlier have on a correlation coefficient? Would it increase, decrease or stay the same?

Define Test a correlation for significance?

Write up your results as you would see them in a research paper. Be sure that you include the means and standard deviations for each group in your write-up, as well as a sentence or two explaining the results