Question

In a recent court case, it was found that during a period of 11 years 893 people were selected for grand jury duty and 36% of them were from the same ethnicity. Among the people eligible for grand jury duty, 78.6% were of this ethnicity. Use a 0.01 significance level to test the claim that the selection process is biased against allowing this ethnicity to sit on the grand jury. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.

a. What is the hypothesis test to be conducted?

b. What is the test statistic?

z = ___

c. What is the P-value?

d. What is the conclusion about the null hypothesis?

e. What is the final conclusion?

Answer #1

In a recent court case it was found that during a period of 11
years 867867 people were selected for grand jury duty and 4040% of
them were from the same ethnicity. Among the people eligible for
grand jury duty, 80.880.8% were of this ethnicity. Use a 0.010.01
significance level to test the claim that the selection process is
biased against allowing this ethnicity to sit on the grand jury.
Identify the null hypothesis, alternative hypothesis, test
statistic, P-value, conclusion...

In a recent court case it was found that during a period of 11
years 855 people were selected for grand jury duty and 37% of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 78.4% were of this ethnicity. Use a 0.01 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury. Identify
the null hypothesis, alternative hypothesis, test statistic,
P-value, conclusion...

In a recent court case it was found that during a period of 11
years 881 people were selected for grand jury duty and 41% of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 79.7% were of this ethnicity. Use a 0.05 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury. Identify
the null hypothesis, alternative hypothesis, teststatistic,
P-value, conclusion about...

In a recent court case it was found that during a period of 11
years
877877
people were selected for grand jury duty and
4141%
of them were from the same ethnicity. Among the people eligible
for grand jury duty,
78.578.5%
were of this ethnicity. Use a
0.010.01
significance level to test the claim that the selection process
is biased against allowing this ethnicity to sit on the grand jury.
Identify the null hypothesis, alternative hypothesis, test
statistic, P-value, conclusion...

In a recent court case it was found that during a period of 11
years 894 people were selected for grand jury duty and 42% of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 78.5% were of this ethnicity. Use a 0.05 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury. Identify
the null hypothesis, alternative hypothesis, test statistic,
P-value, conclusion...

In a recent court case, it was found that during a period of 11
years 890 people were selected for grand jury duty and 41 % of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 78 % were of this ethnicity. Use a 0.01 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury.
Identify the null hypothesis, alternative hypothesis, test
statistic,...

n a recent court case it was found that during a period of 11
years 857 people were selected for grand jury duty and 36% of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 80% were of this ethnicity. Use a 0.01 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury. Identify
the null hypothesis, alternative hypothesis, test statistic,
P-value, conclusion...

In a recent court case it was found that during a period of 11
years 872 people were selected for grand jury duty and 42 % of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 80.5% were of this ethnicity. Use a 0.01 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury. Identify
the null hypothesis, alternative hypothesis, test statistic,
P-value,...

In a recent court case it was found that during a period of 11
years 872 people were selected for grand jury duty and 42 % of them
were from the same ethnicity. Among the people eligible for grand
jury duty, 80.5% were of this ethnicity. Use a 0.01 significance
level to test the claim that the selection process is biased
against allowing this ethnicity to sit on the grand jury.
Identify the null hypothesis, alternative hypothesis, test
statistic, P-value,...

13. In a recent court case it was found that during a period of
11 years 879 people were selected for grand jury duty and 39% of
them were from the same ethnicity. Among the people eligible for
grand jury duty, 80.2% were of this ethnicity. Use a 0.01
significance level to test the claim that the selection process is
biased against allowing this ethnicity to sit on the grand jury.
Identify the null hypothesis, alternative hypothesis, test
statistic, P-value,...

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