Researchers Marcial Losada and Emily Heaphy found that the highest performing teams in their research ____
a. had about a 1:1 ratio of positive to negative statements among team members
b. had about a 2:1 ratio of positive to negative statements among team members
c. had about a 6:1 ratio of positive to negative statements among team members
d. had no negative statements among team members
c
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A contract calls for the strength of a steel rod to stand up to pressure of 200 lbs per square inch on average. The contract also requires that the variability in strength for individual steel rods be no more than 5 pounds per square inch
If a random sample of n = 15 rods is selected and the sample standard deviation is 6.7 pounds, the test statistic is approximately ?2 = 25.138. Indicate whether the statement is true or false
The PRIMARY reason for using cost variances is:
A) that they diagnose the cause of a problem and what should be done to correct it. B) for superiors to communicate expectations to lower level employees. C) to administer appropriate disciplinary action. D) for financial control of operating activities.