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Bread Clarksburg Bakery is trying to predict how many
Chapter 5, Problem 6RE(choose chapter or problem)
Problem 6RE
Bread Clarksburg Bakery is trying to predict how many loaves to bake. In the past 100 days, they have sold between 95 and 140 loaves per day. Here is a histogram of the number of loaves they sold for the past 100 days.
a) Describe the distribution.
b) Which should be larger, the mean number of sales or the median? Explain.
c) Here are the summary statistics for Clarksburg Bakery’s bread sales. Use these statistics and the histogram above to create a boxplot. You may approximate the values of any outliers.
d) For these data, the mean was 103 loaves sold per day, with a standard deviation of 9 loaves. Do these statistics suggest that Clarksburg Bakery should expect to sell between 94 and 112 loaves on about 68% of the days? Explain.
Questions & Answers
QUESTION:
Problem 6RE
Bread Clarksburg Bakery is trying to predict how many loaves to bake. In the past 100 days, they have sold between 95 and 140 loaves per day. Here is a histogram of the number of loaves they sold for the past 100 days.
a) Describe the distribution.
b) Which should be larger, the mean number of sales or the median? Explain.
c) Here are the summary statistics for Clarksburg Bakery’s bread sales. Use these statistics and the histogram above to create a boxplot. You may approximate the values of any outliers.
d) For these data, the mean was 103 loaves sold per day, with a standard deviation of 9 loaves. Do these statistics suggest that Clarksburg Bakery should expect to sell between 94 and 112 loaves on about 68% of the days? Explain.
ANSWER:
a) The distribution appears roughly symmetrical, with a peak around 105 loaves per day and a few dips at the extreme high and low ends.
b) The mean number of sales should be larger, because the mean takes into account all of the data points, so it more accurately reflec