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A fair coin is tossed 100 times.
(a) Estimate the probability of getting exactly 50 heads
(b) Estimate the chances of getting more than 40 heads
(c) Suppose the coin is tossed 400 times. What number of heads would correspond to the 4o heads in part (b) in terms of probability? that is, the probability of getting more than x heads in 400 tosses is the same as the probability calculated in (b); find x.
Find the 1σ and 2σ control limits. For the 1σ limits, what is the probability of concluding that the process is out of control when it is really in control?
the effectiveness of treating respiratory infections with herbal remedies was studied. days of fever was used to
STS350: Advanced Statistics for Clinical Science Assignment. In this assignment, you will explore and apply the concepts of bivariate and multivariate regression. Using the datasets you are asked to create, complete each of the following questions ..
"Researcher wanted to know whether there is an association between use of certain drug (Reserpine) and breast cancer. Their target population was 2 million.
According to the historical data, the life expectancy in France is less than or equal to the life expectancy in Germany. A new study has been made to see whether this has changed.
Hand in an article or report about a statistical study; tell what variable or variables are involved and whether they are quantitative or categorical.
Calculate the standard deviation for this data. Explain why statisticians typically use the standard deviation rather than the average deviation.
Which trend model is best, and why? If none is satisfactory, explain. (e) Make a forecast for 2004 by using a trend model of your choice or a judgment forecast.
Commercials for chewing gum make claims about how long the flavor will last. In fact, some commercials claim that the flavor lasts too long.
Arrange these data on an appropriate table, and discuss the association between mortality rate and the use of carbolic acid.
(a) Use Excel to develop a time series model that Hillstone can use to prepare seasonally adjusted trend forecasts of passenger vehicle tyre sales on a quarterly basis. (b) Prepare seasonally adjusted trend forecast estimates for 2012 and 2013 on a..
Write a memo explaining what the regression means. If the average water hardness is 3 and the chief would like to replace any pump with a probability of failing of .80 or more, at what age should pumps be replaced?
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