2. Improving Study Habits. As an aid for improving students' study habits, nine students were randomly selected to attend aseminar on the importance of education in life. The table shows the number of hours each student studied per week before andafter the seminar. At a=0.10, did attending the seminar increase the number of hours the students studied per week?IMPORTANT: a=0.10. (alpha level)Before121531810137After9.17202211522II

Given data, Before After 9 9 12 0.17 6 9 15 20 3 2 18 21 10 15 13 22 7 6

Answered: 2. Improving Study Habits. As an aid…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Q3 A researcher wish to compare four manufacturing methods on the breaking strength of plastic. Four types of machines are used in this experiment. He believed that machines have an effect on the plastics breaking strength. However, each machine can operate only three methods during the experiments on a given day. Table Q3 shows the data of the experiment. Table Q3: Four manufacturing methods on the breaking strength of plastic Manufacturing Methods Machine 2 1 A=73 C=73 D=75 2 A=74 B=75 C=75 3 B=67 C=68 D=72 4 A=71 В-72 D=75 What is the name of the design? Write an appropriate statistical model then list the assumptions and identify the terms. (a) (b) Is this design symmetric ? Justify your answer. State if the design balance or not. Discuss how to achieve balance in this design ? Justify your answer. (c) (d) Test the hypothesis at a = 0.05 whether there is an effect of the four manufacturing methods on the breaking strength of plastics.
7
Pls help ASAP. Pls show all work.
Failure rate for (16) students who took a mathematics test, of whom (12) students passed?? which is (25% 40% (7% 75)).
How can I make a model between two variables with an exponential relation between them in R-Studio using R-Markdown, the sample sizes of both variables are 1000 objects
How do you identify the chi sq & the p-value? How will you interpret the p-value?
Driving test You are about to take the road test for yourdriver’s license. You hear that only 34% of candidatespass the test the first time, but the percentage rises to72% on subsequent retests.a) Create a plan for a simulation to estimate theaverage number of tests drivers take in order to geta license.b) Here are results of 100 trials of a simulation. Use theseresults to estimate the average number of tests driverstake in order to get a license.
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. The data is reported to the right. Complete parts (a) through (d) below. Click the icon to view the critical values table. 1,080,000- 780,000 MRI 130 145 (a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response variable. Choose the correct diagram below. OA. Q Q OB. AMRI 1,080,000- 780,000 130 IQ 145 COLO Q Q SCIER O C. AIQ 145+ 130 780,000 Females MRI IQ 866,662 130 857,782 133 MRI IQ 935,494 141 1,079,550 141 852,244 132 1,001,121 140 951,545 137 955,466 133 790,619 135 1,038,438 139 MRI Males 1,080,000 C D. 145 AIQ 130- 780,000 MRI 1,080,000 Q (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to…
3. Find the 10th and 90th percentiles and the first and third quartiled for the time difference between the schedule and actual arrival times for the Atlanta airline data provided. Use thw formula nk/100 + 0.5, the excel percentile inc function and the rank rank and percentile tool, and compare the results. (See picture) Using the formula the 10th percentile is ____ and the 90th percentile i. _____
b) Calculate the fitness of a population with allele frequency x = 0.4. W = Give your answer rounded to 2 decimal places. Find the allele frequency, x, of a population with fitness 0.2. X =
an IQ score for which 15% of the population has higher score and 85% have lower score represents:

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