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!
1. Ten years ago a study at a large midwestern university found that 18% of the students at the university were very optimistic about their prospects of finding a satisfying job after graduation. To determine if opinions have changed, an SRS of 100 students currently enrolled at the university was selected. 25% of those selected were optimistic about their prospects of finding a satisfying job after graduation. Let p be the proportion of the current student population that is optimistic about their prospects of finding a satisfying job after graduation. The P-value of a test of H0: p = 0.18, Ha: p 0.18 is
A. less than 0.05.B. between 0.05 and 0.10.C. greater than 0.10.
2. The 200 students in a statistics class were randomly divided into two groups of 100 students. Both groups were given the same midterm exam at the same time. One group took the exam in a classroom in which the air temperature was normal (68°). The other group was given the exam in a similar room in which the air temperature was unusually warm (84°). Both groups had one hour to complete the exam. Seventy-four of those taking the exam in the normal room passed, while only 66 of those taking the exam in the warm room passed. Let p1and p2 represent the probability of passing under normal and warm conditions, respectively. To determine if this is evidence that students perform worse under uncomfortable conditions, you test H0: p1 = p2, Ha: p1 > p2. The P-value of this test is
A. 0.1093.B. 0.0547.C. Both choices are correct.
3. We want to see if a panel of 30 expert wine testers can distinguish between a 1990 and 1991 Chardonnay. We present them each with three glasses of wine. The three glasses are either two glasses of the 1990 and one glass of the 1991 in a random order, or two glasses of the 1991 and one glass of the 1990 in a random order. The experts are supposed to identify which of the three glasses contains a different wine. If each of the 30 experts is just guessing and X is the number that guess correctly, then the sample proportion = X /30 who guess correctly has
Find out optimal decision
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
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
Solve the mean and standard deviation equations
Support colour-coding on packaged food to indicate healthier options
The standard deviation of the time to complete the entire homework assignment
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
Compute descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile? Compute the value of beta for each stock. Which of these stocks would you expect to perform best in an up market? Which..
What is the probability you pick a plum and Which of the following is a legitimate probability distribution for this situation
P-value to test hypotheses,
What statistical procedure was used to analyze data in study B?
A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.
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