Consider a sample with data values of 19,20 , 25, 25,27 , 29 ,30 , and 36. Compute the 20th,25th,65th and 75th percentiles (to 2  decimal, if decimals are necessary).  20th percentile    25thpercentile    65thpercentile   75th  percentile

Identify the type of sample ( Experimental or Observational) Then tell if the sample is biased 5.The researcher stands at a shopping mall and selects the first 75 shoppers as they walk by to fill out a survey.

d) Create a 99% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error. Only for this part use o = 23.8

find 5th deciels for given data  12,15,42,3,26,36,6,56,32,25,29,67,32,30

find 27th percentile of data   41,42,45,46,48,49,50,52,53,55,58

The following are scores shot by a golf team in a 9-hole course: 46,52,47,54,55,43,53,48,51,41,50 find the mean, median, 1rst quartile and second quartile of these numbers.

find population variance for given data  15,85,96,75,46,35,21,56,54,47

number 23 please :)

Find the IQR ( Interquartile range) of the following data values: 35, 23, 12, 45, 31, 57, 61, 55, 36, 17

Please help with all parts.not sure of my answer.