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Below are bowling scores for several UMUC statistics professors. Based on output from ANOVA, who is the better bowler (for those of you who don't bowl, a numerically higher score indicates a better score)?
John Mark Kathy157 180 156148 175 158150 165 145140 195 151160 185 166167 170 161
Apart from the math, what is ANOVA going to tell us about these data? How is ANOVA going to "look at" the data? What does ANOVA want to know?
Simply talk about the Excel steps - what buttons get pushed, when?
Is anything missing? Pushing the same buttons in step 3, can you get the same output?
Utilizing the .05 level, do the results support the psychologists' theory. A psychologist theorized where people can hear better when they have just eaten a large meal.
A population of scores forms a normal distribution with a mean of μ = 40 and a standard deviation of σ =12.
One table has a standard deviation of $50 while the other has a standard deviation of $150. What conclusion can be drawn from the data?
At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by x-Game has exceeded the industry standard.
Use RNG in Excel to generate n = 5 observations from the Normal distribution N(20, 5). Test H0: μ = 20 versus H0: μ ≠ 20 at the α = 0.05 level of significance. Repeat this process 100 times and then count the number of times that you reject H0.
In what sense is this business problem? A societal problem? An individual problem?
Compose a 350 to 700-word summary report of your findings to the researcher and owner of the restaurant in which you Identify evidence, if any, of the researcher's claim. Perform a one- or two-tail test on the data provided,
Determine what analysis would you do on each problem (ie, one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
What is the null and alternative hypothesis? What is your final conclusion?
Based on chi-square table, what is the most correct statement which can be made about the p-value for the test?
When the purpose of sampling is to detect when a process becomes too variable the chart of choice will be a c-chart?
The null hypothesis is to be tested at the 10% level of significance. The critical value from the table is:
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