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According to a recent survey, the average urban person consumes 1.5 kg of food per day. Is this figure also true for rural people? Suppose 64 rural people are identified by a random procedure and their average consumption per day is 1.57 kg of food. Assume a population variance of 0.52 kg2 of food per day. Use a 5% level of significance to determine whether the survey figure for urban people is also true for rural people on the basis of the sample data.
What is the probability density function for this uniform distribution?
Use this information to determine the empirical probability that the next bird to visit the feeding station will be a dove.
Is the probability of the discharged of a patients needing carebeing depandent on their gender? Comment on your result. If u know patient is delayed, what is the probability that they are female?
A random sample of 200 students at UCLA shows that 120 of them have internet access. Test the claim that the true population proportion of students at UCLA who have internet access
Pprobability is no greater than 1% that the day's supply is exhausted. How many pounds of ground beef should the manager have available for use each day?
Strack, Martin, and Stepper (1988) found that people rated cartoons as funnier when holding a pen in their teeth (which forced them to smile) than when holding a pen in their lips (which forced them to frown). For this study, identify the independ..
Using the following 12 numbers (12, 34, 23, 10, 9, 45, 14, 34, 12, 13, 13, 35), calculate 1. the median 2. the mode 3. the mean
Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals).
How Large a sample is needed to estimate the true proportion of homeowners who have vegetable gardens to within 3 percentage point 92% confidence.
The standard deviation in the 12-month earnings per share for 10 companies in the airline industry was 4.27 and the standard deviation in the 12-month earnings per share for 7 companies in the automotive industry was 2.27
would this prove that they are exceeding their goal, using α = 0.025?
A wildlife biologist captures a certain species of geese in orer to weigh them. Using science, he determines that the weights are normally distributed with a mean of nine pounds and a standard deviation of 1.3 pounds.
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