Section 3.3: Constructing Bootstrap Confidence IntervalsExample 1: Textbook PricesPrices of a random sample of 10 textbooks (rounded to the nearest dollar) are shown:$132 $87 $185 $52 $23 $147 $125 $93 a). What is the sample mean? $85 $72
b). Describe carefully how we could use cards to create one bootstrap statistic from this sample. specific. Use 10 cards and write the 10 sample values on the cards, then mix them up before randomly drawingone card from the pile. Write down the answer, put the card back in the pile, and repeat the process nine more times. Then figure out the sample mean. c). Where will be bootstrap distribution be centered? What shape do we expect it to have?Be
Example 2: Reese’s Pieces We wish to estimate the proportion of Reese’s Pieces that are orange, and we have one package of Reese’s Pieces containing 55 pieces. Describe carefully how we can use this one sample to create a bootstrap statistic.