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!
A statistics instructor developed a special teaching method to reduce students' boredom in class. (Not that students are ever bored in statistics). It is known from previous research that on a scale of 0 to 100 (0 = not at all bored, 50 = kind of bored, and 100 = I'm trying to sleep, please stop bothering me), the average level of boredom in statistics is 55 with a standard deviation of 10, and the levels of boredom are normally distributed. Part I: Instead of using the special teaching method on one student (which he's already done on Assignment #3), the instructor uses the technique on a class of 25 students. Their average level of boredom was 50. He wants to determine if he should reject or retain the null hypothesis using a .05 level of significance. 1. Define the 2 populations we're interested in. (3 pts) Population 1: Population 2: 2. What are the research and null hypotheses? (3 pts) H1: H0: 3. Draw both comparison distributions. Fill in the variables and then draw both our comparison population and distribution of means. Be sure to label both charts correctly. (3 pts) μ = σ = μM = σM = 4. Determine our cutoff scores and label them back on the distribution of means. (3 pts) 5. Determine our sample's score and label it correctly on the distribution. (3 pts) 6. Do we reject or retain the null hypothesis? Please explain. (3 pts) Part II: Again, he tests his special teaching method but this time he is looking to see if it has any difference on the students' scores. He selects 20 students at random from his classes. Their level of boredom was 68. He wants to determine if he should reject or retain the null hypothesis using a .01 level of significance. Use the steps above to complete this on your own. (15 pts)
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
Descriptive statistics (5-number summary, mean, mode, range and standard deviation) for each of the four variables along with an explanation of what the descriptive statistics tell us about the motion picture industry.
Why is it important for a security professional to know specifics about the particular target environment to which they are assigned? How can experienced security professionals prepare themselves for challenges and opportunities they have never encou..
Are the events of being man-made and being polluted independent and write out the sample space - Find the PPV and NPV for a population where 2% of the people have the disease.
Find the optimal location for Oliveira's two distribution centers in this expanded version of the problem. What is the optimal value of the objective function
Find the probability that there are exactly 2 prescriptions for this drug in a given week and find the probability that there are no more than 5 prescriptions for this drug in a given week.
Two laboratory and two randomized field experiments tested a psychological intervention designed to improve students' scores on high-stakes exams and to increase our understanding of why pressure-filled exam situations undermine some students' per..
Draw all of Venn Diagrams - Using circle Venn Diagrams and What are all of the subsets of U?
There evidence that the mean price is higher at Whole Foods Market than at the Fairway supermarket and interpret the meaning of the p-value in (a)
Write up your lab experience including: the necessary steps (broadly, not detail with keystrokes) to collectpersistent data, the ease of use of the software
What would be the appropriate statistical procedure to test the following hypothesis: "Triglyceride values are a good predictor of weight in obese adults." What are the functions of parametric statistical procedures?
Find the probability that - exactly two of the workers have been exposed to asbestos - Find the probability that exactly 15 babies are female.
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