A headline in a certain newspaper states that " most stay at first job less than 2 years". That headline is based on an online poll of 360 graduates. Among those polled, 79% stayed at their first full-time job less than 2 years. Complete parts (a) through (c). a) Assuming that the 50% is the true percentage of graduates who stay at their first job less than two years, find the mean and standard deviation of the numbers of such graduates in randomly selected groups of 360 graduates. (Round to one decimal place as needed) b) Assuming that the 50% rate in part (a) is correct, find the range of usual values for the numbers of graduates among 360 who stay at their first job less than two years. (Use ascending order. Round to one decimal place as needed) c) Find the actual number of surveyed graduates who stayed at their first job less than two years. Use the range of values from part (b) to determine whether that number is unusal. Does the result suggest that the headline is not justified? (Round to the nearest whole number as needed)
A headline in a certain newspaper states that " most stay at first job less than 2 years". That headline is based on an online poll of 360 graduates. Among those polled, 79% stayed at their first full-time job less than 2 years. Complete parts (a) through (c).
a) Assuming that the 50% is the true percentage of graduates who stay at their first job less than two years, find the
(Round to one decimal place as needed)
b) Assuming that the 50% rate in part (a) is correct, find the
(Use ascending order. Round to one decimal place as needed)
c) Find the actual number of surveyed graduates who stayed at their first job less than two years. Use the range of values from part (b) to determine whether that number is unusal. Does the result suggest that the headline is not justified?
(Round to the nearest whole number as needed)
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