Question

Problem 78

Answer 1

Given information

The sample size=8;  X= the number of sick days they took for the past year. The degree of freedom(df)=8-1=7;

 The number of sick days employees took for the past year are as follows: 12; 4; 15; 3; 11; 8; 6; 8.

Step-by-step explanation

Step 1.

Mean for the given hypothesis =(Sum of all the samples)/(total no. of samples);

=(12+4+15+3+11+8+6+8)/8=8.375;

Now, the standard deviation (s)=;

 (s)=4.104;