Is there an association between whether adults eat breakfast and whether they own a pet? To investigate, researchers select a random sample of 75 adults and asked them if they ate breakfast and if they owned a pet. The researchers would like to determine if there is convincing evidence of an association. Let a = 0.05. What are the hypotheses for this test? O Họ: There is an association between whether adults eat breakfast and whether they own a pet. Hạ: There is no association between whether adults eat breakfast and whether they own a pet. O Họ: There is no association between whether adults eat breakfast and whether they own a pet. Hạ: There is an association between whether adults eat breakfast and whether they own a pet. O Họ: There is no difference in the distribution of whether adults eat breakfast and whether they own a pet. Hạ. There is a difference in the distribution of whether adults eat breakfast and whether they own a pet.

Stay safe and healthy. Exercise: Apply the procedure in testing the hypothesis. A survey was conducted at a community college of 102 randomly selected students who dropped a course in the current semester to learn why students drop courses. Personal drop reasons include financial, transportation, family issues, health issues, and lack of child care. Course drop reasons include reducing ones load, being unprepared for the course, the course was not what was expected, dissatisfaction with teaching, and not getting the desired grade. Work drop reasons include an increase in hours, a change in shift, and obtaining full-time employment. Test whether gender is independent of drop reason at the 1% level of significance. Use "Data_Example and Exercises file". SLIDESMANIA.COM Dec 8, 2021 (Edited Dec 8, 2021) Result ACTUAL/OBSERVED Count of Drop Reason Column Labels - Career Row Labels Course Institution Personal Work Grand Total Female 10 12 18 6 11 57 Male 11 9 6 12 46 Grand Total 21 21 26 12…

A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 1 of 8: State the null and alternative hypothesis.

Perform the following hypothesis test of a proportion: HO: p = 0.33 HA: p  0.33 The sample proportion is 0.31 based on a sample size of 100.  Use a 10% significance level. What is the value of the test statistic? (Give your answer rounded to 2 decimals) (Be careful to make sure your + or - sign is correct)