Answer to Question #6575 in Statistics and Probability for Jessica Smith

Question

PROBLEM 1 The (rounded) average price for a box of cookies obtained from 28 bakeries is listed below: 40 23 11 20 22 20 45 15 28 22 22 18 72 19 22 28 27 19 23 46 45 15 30 10 56 15 17 59 a. Construct a grouped frequency distribution and a cumulative frequency distribution with 6 classes. Note: give a brief explanation by specifying the covered steps. Grouped Frequency Distribution Step 1. Find Range Step 2. Compute classes’ width Step 3. Create class boundaries Step 4. Tally the data and find the numerical frequencies from the tally Cumulative Frequency Distribution Step 1. Find Range Step 2. Compute classes’ width Step 3. Find the frequencies and the corresponding percentage b. Use Excel to construct a Histogram. (Tools  Data Analysis  Histogram  for input range select the given values, for the bin range select the classes upper boundaries values  check Chart Output).

Answer 1

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