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To calculate the probability value using normal distribution for the given data.
Central Limit Theorem Area under the Curve:
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the probability that-
The sample mean per cup is more than 8.40 ounces?
Here are the DMS odor thresholds for 10 untrained students:
Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?
What is the standard deviation of expected returns for Stock X? For Stock Y?
Determine the probability of fatal accident over lifetime? Describe your reasoning carefully. Suppose independent events. Why might the supposition of independence be violated?
Conduct a statistical test to determine if the sample is representative of the population.
What is the P-value of the test, assume the standard deviation is 3 years, a 95% confidence interval for the average time
Find the probability of committing a type I error.
determine if the improvement is of practical significance one should. Crop researchers plant 100 plots with a new variety of corn. The average yield for these plots is x' = 130 bushels per acre
Find the relative risk for moderate beer drinkers as compared to nondrinkers, finds the 95% confidence interval
If one person is selected at random, what is the probability that person is Female?
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
Between what two values does the P -value of this test fall?
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