According to a national census for a particular country, the proportion of families with three or...

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According to a national census for a particular country, the proportion of families with three or more children (aged less than 25) declined from 43% in 1961 to 19% in 2011. Suppose we estimate that this proportion is 16.6% this year. In order to market products to large families, we randomly select 1600 families in this nation for a survey. Complete parts (a) through (d) below. Since the probability is very small (less than 0.05), it does cast doubt on the estimate. d) Suppose we had surveyed a random sample of only 100 families instead of 1600 and had gotten the same result: 18.5% of the sample had three or more children. Comment on whether this result from a smaller survey casts doubt on the population estimate. The probability is Since this very small (less than 0.05), it cast doubt on the estimate. (Round to four decimal places as needed.) According to a national census for a particular country, the proportion of families with three or more children (aged less than 25) declined from 43% in 1961 to 19% in 2011. Suppose we estimate that this proportion is 16.6% this year. In order to market products to large families, we randomly select 1600 families in this nation for a survey. Complete parts (a) through (d) below. Since the probability is very small (less than 0.05), it does cast doubt on the estimate. d) Suppose we had surveyed a random sample of only 100 families instead of 1600 and had gotten the same result: 18.5% of the sample had three or more children. Comment on whether this result from a smaller survey casts doubt on the population estimate. The probability is Since this very small (less than 0.05), it cast doubt on the estimate. (Round to four decimal places as needed.)