Question

CAN I PLEASE GET SOME HELP?

Question 1.1. If 16% of the listeners of a radio station listen to it while they are at work, what is the approximate standard deviation of the sampling distribution of the proportion for samples of size 72?
(Points : 4)
0.5%

1.9%

4.3%

9.3%

Answer 1

@Molly_Qian what happened?

Answer 2

@undeadknight26 can u plz help me ive been on this same test for ever

Answer 3

@gerryliyana

Answer 4

ok hold on

Answer 5

@ichliebedich please help

Answer 6

my guess is b but im not sure

Answer 7

@Mrhoola

Answer 8

anyone?????

Answer 9

@ribhu

Answer 10

wait

Answer 11

Kay

Answer 12

i got b!!

Answer 13

Alrighty!

Answer 14

no its C

Answer 15

@ribhu A transportation worker takes a simple random sample of 162 toll booth receipts for one day and finds that the mean is $7.38 with a standard deviation of $1.45. What is the 99% confidence interval for the mean amount of all the receipts that day?
(Points : 4)
($7.30, $7.46)

($7.27, $7.49)

($7.16, $7.60)

($7.09, $7.67)
Please help me with this one? :)