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Estimate the probability that the machine will overflow and will not overflow an 8-oz cup.
Vending machine: Soft Drinks a vending machine automatically pours soft drinks into cups. The amount of soft drink dispensed into a cup is normally distributed with a mean of 7.6 oz and standard deviation of 0.4 oz. Examine Figure 7-3 and answer the following question.
(a) Estimate the probability that the machine will overflow an 8-oz cup.
(b) Estimate the probability that the machine will not overflow an 8-oz cup.
(c) The machine has just been loaded with 850 cups. How many of these do you expect will overflow when served?
An SRS of 100 of a certain popular model car in 1993 found that 20 had a certain minor defect in the brakes. An SRS of 400 of this model car in 1994 found that 50 had the minor defect in the brakes. Let p1 and p2 be the proportion of all cars of t..
the probability that a household is both prosperous and educated is P (A and B) = 0.082. What is the probability P (A or B) that the household selected is either prosperous or educated.
The critical value of F at 95% confidence when there is a sample size of 21 for the sample with the smaller variance, and there is a sample size of 9 for the sample with the larger sample variance is:
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
Based on this information, confidence level would be 90% that population mean is somewhere between?
Conduct a statistical test to determine if the sample is representative of the population.
If you have multiple regression output with 2 independent variables and R-Square is .9682, what does R-Square indicate?
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
Utilizing Excel data analysis calculate t distribution also deduce the result. Study of variance is used to investigate if there is a difference in the mean mileage of the three cars.
What kind of probability uses sample spaces to find out numerical probability that event will happen?
At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:
To select a _________ sample, an intact group of subjects that represent the population is selected.
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