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Suppose the amount of a popular sport drink in bottles leaving the filling machine has approximately a normal distribution with mean 101.5 milliliters (ml) and standard deviation 1.6 ml. a. If the bottles are labeled 100 ml, what proportion of the bottles contain less than the labeled amount? b. If only 2.5% of the bottles have contents that exceed a specified amount c, what is the value of c?
(a) What is the sample proportion of Americans who believe there is intelligent life on other planets? (b) What is the standard error of the sample proportion? (c) Calculate a 90% CI for the population proportion of Americans who believe there is ..
question find the probability that in 200 tosses of a fair die we will obtain at least 40
A pair of dice is rolled. The sum of the faces on top is observed. What are the expectation, variance, and standard deviation of the observed sum? The Expectation and Variance Template attached to the main posting is optional and recommended.
What is the probability that exactly 3 members of the committee are Hispanic? (b) What is the probability that 3 or fewer members of the committee are Hispanic?
Recall that in Exercise 45 the personnel director for Electronics Associates developed the following estimated regression equation relating an employee's score on a job satisfaction test to length of service and wage rate.
The president of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies.
The amounts of money requested on home loan applications at Down River Federal Savings follow the normal distribution, with a mean of $70,000 and a standard deviation of $20,000.
a simple random sample of 47 adults is obtained and each persons red blood cell count in cells per microliter is
Describe appropriate treatment means μ1, μ2 and μ3. After that Test for statistically significant differences between these treatment means. Set α = 0.05.
A family has 5 children and 1 of them is a boy...the percentage of boy is 1/5, or .020. Do you think one could say the chances of any woman having a boy would be 1/5? Explain your answer.
Customers enter the waiting line at a cafeteria on a first-come, first-served basis. The arrival rate follows a Poisson distribution, while service times follow an exponential distribution.
a computer laboratory manager was in charge of purchasing new battery packs for her lab of laptop computers. she
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