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A vending machine dispenses coffee into a twelve ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.05 ounce. You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed?
To test whether there is any association between two variables using Chi-Square test for independence.
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
An experiment was conducted to compare the effects of two teaching styles for grade 12 mathematics. the individuals in experiment were grade 12 math students from one particular high school.
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
Create a 99% confidence interval for mean overall duration of symptoms in population of individuals who used zinc lozenges.
A manager of a large department store with three floors reports that the time a customer on the second floor must wait for an elevator has a uniform distribution ranging from 0 to 16 minutes. It takes the elevator 1 minute to go from floor to floo..
Do these simulated data provide evidence for us to conclude that a difference in the spinal canal cross sectional area exist between the population of subjects with disc hernination and a population of those who do not have disc hernation?
Suppose you are working with a data set that is normally distributed, with a mean of 300 and a standard deviation of 44. Determine the value of x from the following information.
Hypothesis testing of single mean - can we conclude that the mean weight is greater than 16 ounces? Determine the p -value.
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Assume a sample of 60 Americans is taken to further investigate viewing habits. Suppose the population standard deviation for weekly viewing time is Q = 4..
Compute expected value for each of three actions and find out if manager must accept, further analyze, or reject the lot? Determine expected value of perfect information (EVPI)?
A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising.
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