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A psychologist was interested in whether different TV shows lead to a more positive outlook on life. People were split into 4 groups and then taken to a room to view a program. The four groups saw: The Muppet Show, Futurama, BBC News, No Program. After the program a blood sample was taken and serotonin levels measured (remember more serotonin means more happy!) Carry out one-way ANOVA by hand to test the hypothesis that some TV shows make people happier than others. State your conclusions.
In the table below you have a summary of the results:
The Muppet Show Futurama BBC News No Program
Sample size 7 6 6 8
Mean 9.43 7.67 3.33 4.75
Variance 8.95 5.87 2.27 2.21
Grand Mean 6.30
Grand Variance 10.06
-What is the critical value at a=0.05?
-What is the value of the between-group variance? Round your answer to two decimal places.
-What is the value of the within-group variance? Round your answer to two decimal places.
-Using your answers from (3) and (4), solve for the F test value. Round your answer to two decimal places.
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the probability that a wildcat well will be productive is 112. assume that a group is drilling wells in various parts
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