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Chapter 11: Q.31 (page 660)
What is the p-value?
The p-value is zero.
Given data:
The formula can be used to determine the p-value in an excel sheet, as shown below.
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Transit Railroads is interested in the relationship between travel distance and the ticket class purchased. A random sample of passengers is taken. Table 11.31 shows the results. The railroad wants to know if a passenger鈥檚 choice in ticket class is independent of the distance they must travel.
State the hypothesis:
:
:
If , the chi-square distribution has a shape that reminds us of the exponential.
Isabella, an accomplished Bay to Breakers runner, claims that the standard deviation for her time to run the mile race is at most three minutes. To test her claim, Rupinder looks up five of her race times. They are minutes, minutes, minutes, minutes, and minutes.
How many passengers are expected to travel between and miles and purchase first-class tickets?
When does the chi-square curve approximate a normal distribution?
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