Lab 1: Chi-Square Goodness-of-Fit Quiz

How can you collect the grocery receipt data?

• Estimate the amounts yourself
• Use last year's tax records
• Ask 30 people leaving the supermarket
• Search online databases

As an alternative, how many amounts can you ask from each cashier?

• The last 30 amounts
• The last 20 amounts
• The last 10 amounts
• The last 5 amounts

For the uniform distribution test, which percentiles are requested?

• 20, 40, 60, 80
• 25, 50, 75, 100
• 15, 35, 55, 75
• 10, 30, 50, 70

The exponential distribution test uses which parameter?

• Decay parameter
• Location parameter
• Shape parameter
• Growth parameter

Which value is requested first in the uniform distribution test?

• Median
• Lowest value
• Highest value
• First quartile

Which percentile appears in the exponential test but not the uniform test?

• 60 percentile
• 80 percentile
• 37 percentile
• 40 percentile

In the exponential distribution test, what is requested at item d?

• First quartile
• Median
• 63 percentile
• Highest value

Which quartiles are requested in the exponential test?

• First and third quartiles
• No quartiles
• Only the median
• Second and fourth quartiles

The chi-square table for the uniform test has which two data columns?

• Lowest and Highest
• Cell and Frequency
• Observed and Expected
• Mean and Mode

The exponential distribution table lists which columns?

• Mean, Median, Mode
• Count, Percent, Total
• Cell, Observed, Expected
• Low, High, Range

When collecting data, you should be sure to include which lane if open?

• The customer service lane
• The express lane
• The self-checkout lane
• The exit lane

How many people are asked for grocery receipt amounts?

• 50 people
• 30 people
• 10 people
• 20 people