Chi square formula =45.555 |
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 277 subjec...
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 271 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Naccination Status Diseased Not Diseased Total Vaccinated 59 53 112 Not Vaccinated 76 83 159 Total 135 136 271 Copy Data Step 1 of 8: State the null and alternative hypothesis. Answer 2 Points Tables Keypad Ho: vaccination and disease status are independent He:...
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 272 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Vaccinated Not Vaccinated L Diseased 70 65 135 Not Diseased 74 63 137 Total 144 128 272 Total Copy Data Step 4 of 8: Find the value of the test statistic. Round your answer to three decimal places.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 203 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 42 37 79 Not Vaccinated 58 66 124 Total 100 103 203 Copy Data Step 4 of 8: Find the value of the test statistic. Round your answer to three decimal places.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 203 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 42 37 79 Not Vaccinated 58 66 124 Total 100 103 203 Copy Data Step 7 of 8: Make the decision to reject or fail to reject the null hypothesis at the 0.05 level of significance.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 203 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 42 37 79 Not Vaccinated 58 66 124 Total 100 103 203 Step 8 of 8: State the conclusion of the hypothesis test at the 0.05 level of significance.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 242 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 48 91 139 Not Vaccinated 62 41 103 Total 110 132 242 H0: vaccination and disease status are independent Ha: vaccination and disease status are dependent E(n1,1)=63.2 E(n1,2)=75.8 Test Statistic=15.752 Degrees of freedom=1 Step 6 of 8:...
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 252252 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 54 55 109 Not Vaccinated 71 72 143 Total 125 127 252 State the null and alternative hypothesis. Find the expected value for the number of subjects who are vaccinated and are diseased. Round your answer to...
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 203 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 42 37 79 Not Vaccinated 58 66 124 Total 100 103 203 Step 1 of 8: State the null and alternative hypothesis. Step 2 of 8: Find the expected value for the number of subjects...
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 203 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 42 37 79 Not Vaccinated 58 66 124 Total 100 103 203 Step 1 of 8: State the null and alternative hypothesis. Step 2 of 8: Find the expected value for the number of subjects who are...
Step2: FIND the expected value for the number of subjects who are vacinated and diseased. Step3: FIND the expected value for number of subjects who are not vacinated and diseased. Step4: Find value of the test statistic. round to 3 step5: Degrees of freedom: step6: crit value of test at .025 level of signifigance. round to 3 step7: fail or reject hypothesis at .025 signifgance? step8:state the conclusion of the hypothesis test at the .025 level of signigance (signifgant/not signifgant...