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Suppose you work for a city health agency and are asked to estimate the mean caffeine content per five ounces for a coffee shop. You find that a random sample of 45 five-ounce servings has a mean caffeine content of 88 milligrams. Suppose the population standard deviation is 30 milligrams.
a) Construct a 99% confidence interval
b) Construct a 95% confidence interval
c) Provide a confidence statement using the 95% confidence interval
Examine the question the researchers were trying to answer and write an essay (500-750 words) that explains why you feel the t-test was chosen. Choose one of the other tools studied so far in this course and explain why it would not provide releva..
Draw a scatterplot of population versus violent crime, making sure it meets all the criteria for a good picture. Comment on the scatterplot.
Various temperature measurements are recorded at different times for a particular city. The mean of 25C is obtained for 60 temperatures on 60 different days. Assuming that pop st/deviation is 1.5C, test the claim that the population mean is 23C. Use ..
Based on that information, develop a 99% confidence interval to provide an estimate of the mean expenditure per person for the entire population of visitors.
Calculated the standard deviation of X. Keep all intermediate steps to four decimals
What are the four levels of measurement scales? Give examples of each and explain in detail. Explain the use of normal probability plot to evaluate whether a set of data is normally distributed? Please discuss in detail.
Judges rated the sounds for the emotional tone of dominance on a scale of 1 to 7, with 7 being extremely dominant. The surgeons in this study had never been sued or had been sued twice. Analyze the scores and write an interpretation.
For the values 0, 1, 2, 3, 4, 5, 6 the corresponding relative frequencies based on a sample of 10,000 observations are 0.015625, 0.093750, 0.234375, 0.312500, 0.234375, 0.093750, 0.015625, respectively.- Determine the mean, median, variance, stand..
A certain brand of apple juice is supposed to have 64 ounces of juice. Because the penalty for under-filling bottles is so severe, the target mean amount of juice is 64.05 ounces. However, the filling machine is not precise, and the exact amount of j..
Do the sample data provide convincing evidence that a majority of all adult Americans prefer a hot climate over a cold climate?
We shall attempt to answer these questions: (a) What is the average number of machines not in use? (b) What proportion of time is each machine in use?
I need help comming up with a strategy without playing the game and what is it for parts A-D.
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