$1.00 1. 1,020 randomly selected adults were asked whether they took statistics class. Only 45% said yes.
1. 1,020 randomly selected adults were asked whether they took statistics class. Only 45% said ‘yes’.
a. What percent did not respond ‘yes’?
b. Is the proportion answering ‘yes’ (45%) a parameter or a statistic? Explain your answer.
c. Find a range for the number of people who responded ‘yes’. That is, determine all the numbers that, when divided by 1,020, round to 0.45.
(Note: 0.45 x 1020 = 459. But if you try 458 divided by 1,020, or 460 divided by 1,020, you will also get 0.45 to two decimal places. Which other values meet this criterion?)
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- Posted on Jun. 02, 2012 at 09:52:53AM