The claim is that the iq scores of statistics professors are normally distributed, with a mean greater than 135. a sample of 23 professors had a mean iq score of 140 with a standard deviation of 13. find the value of the test statistic.

1.8446

Step-by-step explanation:

Given claim :

Sample size :

Sample mean :

Standard deviation :

The test statistic for population mean is given by :-

Hence, the value of test statistic =  1.8446

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)