Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 42 farming regions gave a sample mean of = $6.88 per 100 pounds of watermelon. Assume that ?? is known to be $1.98 per 100 pounds.
(a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop (in dollars). What is the margin of error (in dollars)? (For each answer, enter a number. Round your answers to two decimal places.)
lower limit= $ upper limit= $ margin of error= $
(b) Find the sample size necessary for a 90% confidence level with maximal error of estimate E = 0.37 for the mean price per 100 pounds of watermelon. (Enter a number. Round up to the nearest whole number.) farming regions=
(c) A farm brings 15 tons of watermelon to market. Find a 90% confidence interval for the population mean cash value of this crop (in dollars). What is the margin of error (in dollars)? Hint: 1 ton is 2000 pounds. (For each answer, enter a number. Round your answers to two decimal places.)
lower limit= $
upper limit= $
margin of error= $
Angela took a general aptitude test and scored in the 83rd percentile for aptitude in accounting.
What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated? Why might a driver be tempted not to use a seat belt "just on thi..
The level of calcium in the blood in healthy young adults varies with mean about 9.5 milligrams per deciliter and standard deviation about σ = 0.4. A clinic in rural Guatemala measures the blood calcium level of 160 healthy pregnant women at their..
Fuel Consumption and Cars An automobile insurance policy depends on many factors, What is the probability that a randomly selected driver is paid $5000
This sample group has errors with a standard deviation of 54.7ft. At the 5% level of significance, test that the new population has errors with a standard deviation equal to 43.7ft.
A regression is estimated with 50 observations,three explanatory variables and with a constant. Suppose You want to test the following hypothesis H0: (β1 + β2) - c0 = 0 and H1: (β1 + β2) - c0 ≠ 0 where c0, is a constant.
Sample statistics were calculated and a hypothesis test carried out. The p-value was found to be 0.04. At the 5% level of significance, which of the following statements is most appropriate?
SAT scores (out of 2400) are distributed normally with a mean of 1500 and a standard deviation of 300. Suppose a school council awards
Investigate aquaculture systems that do not alter the environment to the extent of shrimp farming in mangrove forests, for example.
Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 100. Mean of sampling distribution:
the proportion of students in private schools is around 11. a random sample of 450 students from a wide geographic area
What is the primary purpose of a supply chain? Give an example of a supply chain functioning in the aviation industry
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd