What is the Pvalue Note Do not be surprised if your test sta

What is the P-value?

Note: Do not be surprised if your test statistic is off the charts (CPFT-18,19).

0.6703

0.3297

1

0

Solution

Formulating the null and alternative hypotheses,              
              
Ho:   u   =   200  
Ha:    u   =/   200  
              
As we can see, this is a    two   tailed test.      
              
              
Getting the test statistic, as              
              
X = sample mean =    206.73          
uo = hypothesized mean =    200          
n = sample size =    40          
s = standard deviation =    6.35          
              
Thus, z = (X - uo) * sqrt(n) / s =    6.703032647          
As we can see, this is a very large z value (out of the chart), so

P = 0 [ANSWER, OPTION D]