Question

In: Statistics and Probability

In the US, 44.3% of all people have type O blood, 41% have type A blood,...

In the US, 44.3% of all people have type O blood, 41% have type A blood, 10.2% have type B blood and 4.5% have type AB blood. A researcher wants to see if the distribution of blood type is different for millionaires. The table below shows the results of a random sample of 2864 millionaires. What can be concluded at the αα = 0.01 significance level?

Complete the table by filling in the expected frequencies. Round to the nearest whole number:
Frequencies of Blood Type

OutcomeFrequencyExpected Frequency

O1258

A1181

B281

AB144

What is the correct statistical test to use?
Select an answer Independence Goodness-of-Fit Homogeneity Paired t-test

What are the null and alternative hypotheses?
H0:H0:

Blood type and income are dependent.

The distribution of blood type for millionaires is not the same as it is for Americans in general.

Blood type and income are independent.

The distribution of blood type for millionaires is the same as it is for Americans in general.

H1:H1:

The distribution of blood type for millionaires is not the same as it is for Americans in general.

Blood type and income are independent.

Blood type and income are dependent.

The distribution of blood type for millionaires is the same as it is for Americans in general.

The degrees of freedom =

The test-statistic for this data = (Please show your answer to three decimal places.)

The p-value for this sample = (Please show your answer to four decimal places.)

The p-value is Select an answer greater than less than (or equal to) αα

Based on this, we should Select an answer accept the null fail to reject the null reject the null

Thus, the final conclusion is...

There is insufficient evidence to conclude that blood type and income are dependent.

There is sufficient evidence to conclude that the distribution of blood type for millionaires is the same as it is for Americans in general.

There is insufficient evidence to conclude that the distribution of blood type for millionaires is not the same as it is for Americans in general.

There is sufficient evidence to conclude that the distribution of blood type for millionaires is not the same as it is for Americans in general.

There is sufficient evidence to conclude that blood type and income are dependent.

Expert Solution

orchestra answered 1 year ago

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