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!
Confidence interval mistakes and misunderstandings. Suppose that 101 randomly selected members of the Karaoke Channel were asked how much time they typically spend on the site during the week.5 The sample mean x was found to be 4.2 hours, and the sample standard deviation was s = 2.5 hours
(a) Cary Oakey computes the 95% confidence interval for the average time on the site as 4.2 ± 1.984(2.5/101). What is his mistake?
(b) He corrects this mistake and then states that "95% of the members spend between 3.71 and 4.69 hours a week on the site." What is wrong with his interpretation of this interval?
(c) The margin of error is slightly less than half an hour. To reduce this to 15 minutes, Cary says that the sample size needs to be doubled to 202. What is wrong with this statement?
Let a, b, and c be the vertices of an equilateral triangle of side 1. Let α := (δa + δb )/2,β = (δa + δc )/2, and γ = (δb + δc )/2. (So the simultaneous attainment of Monge-Wasserstein distances by random variables for all laws, as in R1 in Proble..
suppose a sample of 10 observations is taken from a population with a normal distribution. the sample mean is
A certain firm specializing in the manufacture and sale of free time clothing has 80 retail stores in Florida and 140 in California. With each state as a stratum, the firm wishes to estimate average sick-leave time per employee for the past year
Nyobia had a population of 3 million in 1985. Assume that this country's population is growing continuously at a 5% annual rate and that Nyobia absorbs 40000 newcomers every year.
How much will Bob and Carol need to have in the bank on the day the baby is born in order to achieve all their goals? What amount needs to be saved at the end of each year in order for Bob and Carol to reach their financial goals?
john thurgood founded a company that translates chinese books into english. his company is currently testing a
suppose the coffee industry claimed that the average u.s. adult drinks 1.7 cups of coffee per day. to test this claim a
"Determine if the statement is a typical null hypothesis (Ho) or alternative hypothesis (Ha). The average price of a particular statistics textbook over the Internet is the same as the average price of the textbook sold at all bookstores in a coll..
a paper studied various aspects of bus service and presented data on travel times from several different routes. the
Inverse probability based on normal distribution - The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
an educator claims that the drop out rate for seniors at high school in ohio is 15. last year 38 seniors from a random
It is desirable for the process nonconformance to be within 1.5%. If the acceptable level of type I error is 0.05, find the modified control limits for the process mean.
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