The average salary for new college graduates with a job is $50,556. Every chick of the University wants to claim that it's graduates earn more than that average. To test this claim, they ran and selects a hundred of their new graduates and find that their average salary is $53,200 with a standard deviation of $20,400. What conclusion should they draw?

Given:

Null hypothesis: the average salary for new college graduates with a job is $50,556.

Alternative hypothesis: the graduates from a university earn more than that average.

Using the z-test:

=> Calculate the value of test statistic:

t = (mean of sample - mean of null hypothesis)/(std/sqrt(number of sample)

 = (53200 - 50556)/(20400/sqrt(100))

 = 1.296 < 1.645

=> Do not reject the null hypothesis, their graduates do not earn more than average

Hope this helps!

:)

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.