A researcher would like to investigate if the distribution of the number of babies born is uniform across the days of the week. To investigate, the researcher selects a random sample of 350 babies and records on which day of the week they were born. He finds that 28 babies were born on Sundays, 65 on Mondays, 48 on Tuesdays, 56 on Wednesdays, 45 on Thursdays, 62 on Fridays, and 46 on Saturdays. The researcher would like to know if there is convincing evidence that the distribution of births is uniform across the days of the week. What is the value of the chi-square test statistic and the P-value of this test? Find the chi square table here. O x? = 18.68, P-value is between 0.0025 and 0.005 O x = 18.68, P-value is between 0.005 and 0.01 O x? = 24.70, P-value is less than 0.0005 %3D %3D O x = 24.70, P-value is between 0.0005 and 0.001
A researcher would like to investigate if the distribution of the number of babies born is uniform across the days of the week. To investigate, the researcher selects a random sample of 350 babies and records on which day of the week they were born. He finds that 28 babies were born on Sundays, 65 on Mondays, 48 on Tuesdays, 56 on Wednesdays, 45 on Thursdays, 62 on Fridays, and 46 on Saturdays. The researcher would like to know if there is convincing evidence that the distribution of births is uniform across the days of the week. What is the value of the chi-square test statistic and the P-value of this test? Find the chi square table here. O x? = 18.68, P-value is between 0.0025 and 0.005 O x = 18.68, P-value is between 0.005 and 0.01 O x? = 24.70, P-value is less than 0.0005 %3D %3D O x = 24.70, P-value is between 0.0005 and 0.001
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Transcribed Image Text:A researcher would like to investigate if the distribution of the number of babies born is uniform across the days of
the week. To investigate, the researcher selects a random sample of 350 babies and records on which day of the
week they were born. He finds that 28 babies were born on Sundays, 65 on Mondays, 48 on Tuesdays, 56 on
Wednesdays, 45 on Thursdays, 62 on Fridays, and 46 on Saturdays. The researcher would like to know if there is
convincing evidence that the distribution of births is uniform across the days of the week. What is the value of the
chi-square test statistic and the P-value of this test?
Find the chi square table here.
O x? = 18.68, P-value is between 0.0025 and 0.005
= 18.68, P-value is between 0.005 and 0.01
x2 = 24.70, P-value is less than 0.0005
x2 = 24.70, P-value is between 0.0005 and 0.001
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