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2. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6 months. The mean number of cavities at their next checkup is 1.5. In the general poplation, the mean number of cavities at a 6 month checkup is 1.73 (s.d. = 1.12).
The energy information administration records per capital consumption of energy
Produce a short report to update your manager on both the method and results of your analysis and the introduction od 'Six Sigma'.
To display the distribution of "countries of origin" for cars in a USCB parking lot, which type of graph could be appropriate?
q1.in the work represented in the image below describe how each of the following manifest if at alla.nbsp awkward
A few days ago you answered a question I had on probability. The original equation was R(t)=a^(-bt). In your answer you changed it to R(t) = a* e^(-bt). Can you explain why you added the e?
A typical incoming telephone call to your catalog sales force results in a mean order of $ 28.63 with a standard deviation of $ 13.91. You may assume that orders are received independently of one another.
Calculate correlations among the portfolio, SH, and RWM and do you believe the relationships identified are stable and can thus be used going forward?
1. length of pregnancies the length of human pregnancies from conception to birth varies according to a distribution
A sample survey funded by the National Science Foundation asked a random sample of American adults about biological evolution. One question asked survey participants to answer "True", "False" or "Not sure" to the statement "Human beings, as we ..
A computer manufacturer offers a help line that purchasers
Descriptive statistics and inferential statistics
1) A random sample of customer order totals with an average of $78.25 and a population standard deviation of $22.50. Calculate a 90% confidence interval fro the mean, given a sample size of 75 orders
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