In: Statistics and Probability
****Using excel***
A business manager wanted to know if there was a relationship between daily temperature measured in degrees Fahrenheit and number of employees who called-in sick each day. He collected the following data over 10 days: Daily Temperature: 54 70 67 57 54 63 72 72 54 71 # Called-in Sick: 33 32 30 37 34 28 31 27 31 26
a. Using excel Find the value of the correlation coefficient (r) for Daily Temperature and # Called-in Sick.
b. What does the null hypothesis expect for the problem described. (Be sure to use the variables given in the problem.)
c. Using excel Conduct a statistical test of the null hypothesis using p = .05. Be sure to properly state your statistical conclusion.
d. Provide an interpretation of your statistical conclusion given in part C.
e. What is the value of the coefficient of determination?
f. Provide an interpretation of your answer to Part E.
***Using excel***