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1 assume that the income of pediatricians is normally distributed with mean micro 100000 and standard deviation sigma
a large computer company claims that its salaries are normally distributed with mean 50000 and standard deviation 10000
assignmenti solve the given problems and show the solution computation1 a supermarket manager has determined that
suppose the daily amount of solar radiation in los angeles is normally distribution with mean 450 calories and standard
1 if the cholesterol levels of adults are normally distributed with mean 230 and standard deviation 25 what is the
1 if after one year the annual mileage of privately owned cars is normally distributed with mean 14000 miles and
for normal random variables the probability of being within one standard deviation of the mean is 068that is
1 if a distribution appears to be bell-shaped and symmetric about its mean can we assume that the probability of being
1 if a distribution is skewed is it possible that the mean exceeds the 085 quantile2 determine pmicro - sigma le x le
1 explain the meaning of a 095 confidence interval2 you want to compute a 080 092 or a 098 confidence interval for
1 assuming random sampling is from a normal distribution with standard deviation sigma 5 if you get a sample mean of
1 for the following situations a n 12 sigma 22 xmacr 65 b n 22 sigma 10 xmacr 185 c n 50 sigma 30 xmacr 19
if n 10 observations are randomly sampled from a distribution with mean micro 9 and variance sigma 2 8 what is the
answer the same question posed in the previous problem only replace means with sample variancessuppose you randomly
if you randomly sample a single observation and get 32 what is the estimate of the population mean micro can you get an
as part of a health study a researcher wants to know the average daily intake of vitamin e for the typical adult
someone claims that within a certain neighborhood the average cost of a house is micro 100000 with a standard deviation
rats are subjected to a drug that might affect aggression suppose that for a random sample of rats measures of
when sampling from a light-tailed skewed distribution where outliers are rare a small sample size is needed to get good
plot a scatter diagram using gdp per capita as the x variable and life expectancy as the y variable from the table in
plot the scatter diagram using the crude birth rate as the y variable and gdp per capita as the x variable from the
in given problem a regression line was fitted using x life expectancy and y crude birth rate the xoline 687 years
in problem 1 the null hypothesis of equal weight of the male and female mice was tested using the t test use the exact
1 repeat the results from the sign test using the normal approximation compare the results with those obtained using