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Packages from packing machine have a mass, which is normally distributed with mean 200g and standard deviation 2g. Find the probability that the package from the machine weighs
a) less than 197g b) more than 200.5g
(use standard normal variable Z and normal distribution tables)
Assuming that this procedure yields a binomial distribution, find the mean and the standard deviation for the number of households in this sample who have cable TV.
warren county telephone company claims in its annual report that the typical customer spends 60 per month on local and
There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal.
Comprise appropriate (BPS formatted) descriptive statistics table inferential statistics table.
consider a hypothesis test on a mean of a normally distributed population where the hypothesis are h0 mean10. h1 mean
Use confidence interval to determine the estimated margin of error, Then determine the sample mean.
Construct a 96% confidence interval for the population proportion when 285 people out of 750 were in favour of boycotting the World Cup matches if prices were to rise above $100 for 64 televised matches.
Choose any medical scientific study who applied a Bayer Theorem and write down the article information (title, author, location, and date) of the article
a researcher wants to determine if there is a significant difference in the standard deviations of the number of weekly
Thirty-two samples of 8 items each were collected from a process. The average sample mean is 12 and the average range is 0.10. The upper and lower control limits, respectively, for an:
Rresearch analyst in an environmentally-concerned consultancy group. Your team leader has given you a research task to investigate the empirical relationship between Australia's Gross Domestic Product
Find a 95% confidence interval for the difference in the proportion of deaths between the streptokinase and the control group.
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