Given that the population mean,
and the population standard deviation,
Part A:
<span>The probability that the mean price for a sample of 30 h&r block retail customers is within $8 of the population mean is evaluated as follows:
Part B:
</span><span>The probability that the mean price for a sample of 50 h&r block retail customers is within $8 of the population mean is evaluated as follows:
</span>
Part C:
<span>The probability that the mean price for a sample of 50 h&r
block retail customers is within $8 of the population mean is evaluated
as follows:
</span>
252 / 4 = 63.....so it costs $ 63 per ticket
Answer: The factors of 60. 1,2,3,4,5,6,10,12,15,20,30,60, Related Links : Is 60 a rational number?