The commencement coordinators announced to the Chancellor that students request on average 4 tickets to the graduation ceremonies. It is known from previous years that the standard deviation is 1.2. They take a sample of 200 students and find that the average is actually 4.15. Do a test to determine if there is evidence that the average number of tickets requested is not four at a five percent level of significance. What is the relevant bound of the rejection region

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )

answer is  

a.

5.2 inches

hope you get this right.