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High Fructose Corn Syrup Consumption
A consumer group claims that the mean annual consumption of high fructose corn syrup by a person in the United States is pounds. A random sample of 120 people in the United States has a mean annual high fructose corn syrup consumption of 49.5 pounds. Assume the population standard deviation is 3.6 pounds. At a=0.05. can you reject the case?
A student randomly surveyed n = 36 other students and found that the mean amount of money spent on texts was x‾ = $121.60. If the standard deviation of the population was σ = $6.36, find the 90% confidence interval of the mean.
Four brands of lightbulbs are being considered for use in the final assembly area of the Saturn plant in Spring Hill, Tennessee. The director of purchasing asked for samples of 100 from each manufacturer.
a teacher gave a reading test to a class of 5th grade students and computed the mean median and mode for the test
Provide an example of a situation from your personal or professional experience where an two-sample test of hypothesis of dependent samples would be useful in a decision-making process.
Generate a 95% confidence interval for the difference in proportions of patients with hypertension between groups. Experimental (n=100) =14%
Assume the arrival of these emails i3 approximated by the Poisson distribution.
Use the four methods presented in this section to determine whether there is any evidence to suggest the data are from a non-normal population.
What percentage of bottles can we expect to have a volume less than 32 oz?
To find z-score and required probabilities based on Normal distribution. Assume that childrens weekly allowances are normally distributed in the population.
the number of students who belong to the dance company at each of several randomly selected small universities is shown
Loggers are interested in whether they can estimate the volume of the tree given any single dimension.
Find the mean of the distribution of the number of motor vehicles among 10 randomly selected motor vehicles that come to this stop signal
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