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7.3.5 In a study of parents' perceptions of their children's size, researchers Kaufman et al. (Current Biology, 2013) asked parents to estimate their youngest child's height. The researchers hypothesized that parents tend to underestimate their youngest child's size because the youngest child is the baby of the family and everybody else is the family appears bigger compared to the baby. The researchers also surveyed a sample of 31 parents about their eldest child's height. The parents overestimated their eldest child's height by 0.35 cm, on average; the standard deviation for the difference in actual heights and estimated heights was 5.8 cm without strong skewness in the data. Is there evidence that parents tend to either over- or under-estimate eldest children's heights? Carry out a theory-based test using an appropriate applet or statistical software. Find and report a p-value as well as a standardized statistic. Round the test statistic to 2 decimal places, e.g. 5.83, and the p-value to 4 decimal places, e.g. 0.0583. t = 0.34, p-value = 0.7362 (two-sided test)

          7.3.5
In a study of parents' perceptions of their children's size, researchers Kaufman et al. (Current Biology, 2013) asked parents to estimate their youngest child's height. The researchers hypothesized that parents tend to underestimate their youngest child's size because the youngest child is the baby of the family and everybody else is the family appears bigger compared to the baby.
The researchers also surveyed a sample of 31 parents about their eldest child's height. The parents overestimated their eldest child's height by 0.35 cm, on average; the standard deviation for the difference in actual heights and estimated heights was 5.8 cm without strong skewness in the data.
Is there evidence that parents tend to either over- or under-estimate eldest children's heights? Carry out a theory-based test using an appropriate applet or statistical software. Find and report a p-value as well as a standardized statistic. Round the test statistic to 2 decimal places, e.g. 5.83, and the p-value to 4 decimal places, e.g. 0.0583.
t = 0.34, p-value = 0.7362 (two-sided test)

7.3.5
In a study of parents' perceptions of their children's size, researchers Kaufman et al. (Current Biology, 2013) asked parents to estimate their youngest child's height. The researchers hypothesized that parents tend to underestimate their youngest child's size because the youngest child is the baby of the family and everybody else is the family appears bigger compared to the baby.
The researchers also surveyed a sample of 31 parents about their eldest child's height. The parents overestimated their eldest child's height by 0.35 cm, on average; the standard deviation for the difference in actual heights and estimated heights was 5.8 cm without strong skewness in the data.
Is there evidence that parents tend to either over- or under-estimate eldest children's heights? Carry out a theory-based test using an appropriate applet or statistical software. Find and report a p-value as well as a standardized statistic. Round the test statistic to 2 decimal places, e.g. 5.83, and the p-value to 4 decimal places, e.g. 0.0583.
t = 0.34, p-value = 0.7362 (two-sided test)

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