تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-16
السؤال
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Problem Value: 6 point(s). Problem Score: 0%. Attempts Remaining: 5 attempts.
(6 points) Hockey Birthdays. In 2008, Malcolm Gladwell released his book, Outliers. In the book, Gladwell claims that more professional hockey
players are born in January through March than in October through December. The following data is a summary of birth months for a random sample of
158 National Hockey League players.
Birth Month
Number of Players
January-March
47
April-June
42
July-September
36
33
October-December
Conduct a hypothesis test to determine whether hockey players' birthdays are evenly distributed throughout the year using the stated hypotheses.
Round all numeric results to 4 decimal places.
a. What is the expected value for the number of player birthdays in January - March?
b. Calculate the test statistic for this hypothesis test. ?
c. Calculate the degrees of freedom for this hypothesis test.
d. Calculate the p-value for this hypothesis test. p-value =
e. Based on the p-value, we have:
A. little evidence
B. strong evidence
C. extremely strong evidence
D. some evidence
E. very strong evidence
that the null model is not a good fit for our observed data.
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