Mathematics, 19.07.2019 03:20, linaaaaa7

What percentage of the general u. s. population have bachelor's degrees? the statistical abstract of the united states, 120th edition, gives the percentage of bachelor's degrees by state. for convenience, the data are sorted in increasing order.
18, 19, 19, 19, 20, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 29, 29, 30, 32, 32, 33, 33, 35, 36, 39
(a) compute the ¯xx¯ and ss of the data.
¯x= . (round your answer to 2 decimal places.)
s= . (round your answer to 2 decimal places.)
(b) find the z-score of each of the following data value:
x=27, z=. (strictly round your answer to 2 decimal places.)
x=27, z= . (strictly round your answer to 2 decimal places.)
x=19, z= . (strictly round your answer to 2 decimal places.)

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What percentage of the general u. s. population have bachelor's degrees? the statistical abstract o...