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# Of the 440 respondents in a Christmas tree market survey, 43% had no children at home and 57% had at least one child at home.

Of the 440 respondents in a Christmas tree market survey, 43% had no children at home and 57% had at least one child at home. The corresponding figures for the most recent census are 48% with no children and 52% with at least one child. Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude? (Use = 0.10.)

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