Some managers of companies use employee rankings to laud the best ...

[craiczarry]

Some managers of companies use employee rankings to laud the best and let go of the worst. Suppose the distribution of rankings of employees at a large company is normal with a mean of 65 points and a standard deviation of 6 points. Using the provided model for rankings, what is the cut-off for an employee to be weeded out?

Question 2

The weights of a sample of n = 8 college men will be used to create a 95 confidence interval for the mean weight of all college men. What is the correct t multiplier involved in calculating the interval?
 a. 1.89
  b. 2.00
  c. 2.31
  d. 2.36

[eliasc0401]

Answer to Question 1

The 20th percentile is 57.3 points.

Answer to Question 2

D

[craiczarry]

Gracias!

[sarah_brady415]

Thanks for the timely response, appreciate it