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Primary healthcare workers believe that anaphylactic shock reaction to immunization injections occurs with children in one case in two thousand. Immunization teams carry adrenalin packs in order to treat children suffering a shock reaction. Calculate, using Minitab or excel, the probability that two adrenalin packs would be insufficient to treat the shock reactions occurring in a group of 1200 children.
Multiple choice question based on multiple regression - partial computer output based on a sample of 16 observations and find the estimated regression equation
We are interested in determining if the accident proportions differ between the two age groups:
There is a statistical deception here. Explain what is deceptive about the bar graph.
Illustrate what does weighting add to usefulness of moving averages and explain how is it done. The yield on a thirty year treasury note at the end of every year since 1990 is recorded below.
Marentette and El-Masri (2011) used logistic regression to identify predictors of obtaining seasonal influenza vaccination among hospital-based nurses in Canada. Their results are shown in table 1:
Construct the 90% and 95% interval estimates for the population mean weekly sales.
The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes.
We code middle-aged Americans as 1 and senior citizens as 0, the logistic regression model for senior citizens
If many samples of size 1000 persons are chosen, determine the expected value (mean X-bar) or average of average IQ's for these samples?
Decide if the events A and B are mutually exclusive or not mutually exclusive. A card is drawn from standard deck of 52 playing cards.
Use a .10 level of significance to test the claim that the variance of all scores in the population is more than 9.
An accepted standard deviation for LSAT scores is 125. A random sample of 25 scores had an average of 1,375. Assume a significance level of 0.05. State the appropriate null and alternative hypotheses. Calculate the p-value to test the hypotheses.
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