Directions: On all hypothesis test including the ANOVA test 1) clearly state the null and alternative hypotheses; 2) sketch a graph of the rejection region labeled with the critical value; (must send attachment of photo of your sketch) 3) calculate the test statistic showing ALL work and p-value (give a range from tables provided for t, chi-square, and F;), and 4) using evidence state a detailed 3-sentence Conclusion Use this template: Write a 4-step hypothesis test- step 1 - write correct Ho and Ha using correct symbols and abbreviations step 2 - draw the distribution, shading the rejection region, and labeling the number line with critical value(s) and the critical value(s) abbreviation underneath it step 3 part a -label and show work for the test statistic - answers only will not do step 3 part b - write probability statement for p-value and solve it - giving exact answers for z tests and range of values for t tests step 4 - write the 3 sentence conclusion Example: "Step 4: The 3-Sentence Conclusion Here is a fill-in-the-blank three sentence conclusion to copy for step 4. Use this format for the final step, filling in the appropriate abbreviations and values. Conclusion Sentences: Example of a z test conclusion. Since z = ________ z* = _________ and p-value = _______ = ______ , there is (is not) sufficient evidence. They can reject (fail to reject) Ho. They can (cannot) claim ______________________________________________. [fill in alternate claim in word related to the problem.] Conclusion Sentences: Example of a t test conclusion. Since t = ________ t* = _________ and the p-value which falls between _______ and ________ = ______ , there is (is not) sufficient evidence. They can reject (fail to reject) Ho. They can (cannot) claim ______________________________________________. [fill in alternate claim in word related to the problem.]" READ THE ABOVE BEFORE ANSWERING THE QUESTION! The management of Compute-All know that in the past, 40% of their sales were from people under 30 years old, 45% of their sales were from people who are between 30 and 50 years old, and 15% of their sales were from people who are over 50 years old. A sample of 500 customers was taken to see if these market shares had changed. In the sample, 150 people were under 30 years old, 250 people were between 30 and 50 years old, and 100 people were over 50 years old. Conduct a χ2 Goodness of Fit Test to see if these market shares have changed at α = .10
Directions: On all hypothesis test including the ANOVA test
1) clearly state the null and alternative hypotheses;
2) sketch a graph of the rejection region labeled with the critical value; (must send attachment of photo of your sketch)
3) calculate the test statistic showing ALL work and p-value (give a
provided for t, chi-square, and F;), and
4) using evidence state a detailed 3-sentence
Conclusion
Use this template:
Write a 4-step hypothesis test-
step 1 - write correct Ho and Ha using correct symbols and abbreviations
step 2 - draw the distribution, shading the rejection region, and labeling the number line with critical value(s) and the critical value(s) abbreviation underneath it
step 3 part a -label and show work for the test statistic - answers only will not do
step 3 part b - write probability statement for p-value and solve it - giving exact answers for z tests and range of values for t tests
step 4 - write the 3 sentence conclusion
Example: "Step 4: The 3-Sentence Conclusion
Here is a fill-in-the-blank three sentence conclusion to copy for step 4.
Use this format for the final step, filling in the appropriate abbreviations and values.
Conclusion Sentences: Example of a z test conclusion.
Since z = ________ z* = _________ and p-value = _______ = ______ , there is (is not) sufficient evidence.
They can reject (fail to reject) Ho.
They can (cannot) claim ______________________________________________. [fill in alternate claim in word related to the problem.]
Conclusion Sentences: Example of a t test conclusion.
Since t = ________ t* = _________ and the p-value which falls between _______ and ________ = ______ , there is (is not) sufficient evidence.
They can reject (fail to reject) Ho.
They can (cannot) claim ______________________________________________. [fill in alternate claim in word related to the problem.]"
READ THE ABOVE BEFORE ANSWERING THE QUESTION!
The management of Compute-All know that in the past, 40% of their sales were from
people under 30 years old, 45% of their sales were from people who are between 30 and
50 years old, and 15% of their sales were from people who are over 50 years old. A sample
of 500 customers was taken to see if these market shares had changed. In the sample, 150
people were under 30 years old, 250 people were between 30 and 50 years old, and 100
people were over 50 years old. Conduct a χ2 Goodness of Fit Test to see if these market
shares have changed at α = .10
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