The following are weights (in pounds) for a sample of 11 baby girls at the age of 16 months:
20.6 21.2 22.5 23.4 24.6 25.9 26.5 27.3 28.1 29.7
30.8
the estimate for the 70th percentile for these sample data is
pounds. (hint: it may to create a cumulative
frequency table-with the list of actual scores in the "x" column-and include a column of cumulative percentages. to
calculate the percentile, you may need to interpolate between two cumulative percentages, keeping the upper real limits in
mind.)
in the sample data, out of 11 observations are less than or equal to the 70th percentile, and
observations are greater than or equal to this value.
out of 11