Think about the LED suribozrd exanmple from the Ch 9 Powerpoint presented during class Supposewe conducted a study to determine whether the LED surfooarda will deter shark attacks After collectingdata, we calculate Cohen's d= 62. What is the best conclusion?2 the LEDS had no effect on the number of shark attacksb. the LED: had a small effect on the number of shark attackc the LEDS had a medium-sized effect on the number of shark attacksd. the LED: had a large effect on the number of shark attacks

Answered: Image /qna-images/answer/f4788c38-0150-4385-b9a5-a658d1ce288a.jpg

Answered: Think about the LED suribozrd example…

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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Sample n = 50 female entrepreneurs, 9 said they are credit constrained in their business Find the 95% Cl and the 90% for the proportion of female entrepreneurs are credit constrained in their business.
K In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 275 trials, the touch therapists were correct 127 times. Complete parts (a) through (d). D a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guessies? (Type an integer or a decimal. Do not round.) View an example F2 3 80 F3 Get more help. $ 4 9 F4 % 5 S y F5 6 MacBook Air C F6 & 7 K F7 * 8 DII F8 ( 9 F9 ) 0 7 F10 Clear all | a: F11 + Check answer F12 delete
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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.
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P Do Homework - HW 9.2 - Google Chrome A mathxl.com/Student/PlayerHomework.aspx?homeworkld%=611562314&questionld-18&flushed=false&cld=6725222¢erwin=yes STA 2023 leidy correa pabon &| 12/03/21 11:42 AM Question 1, 9.2.12-T E Homework: HW 9,2 HW Score: 9.38%, 0.75 of 8 points O Points: 0.75 of 1 Part 5 of 6 Save Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) d(b) below. E Click the icon to view the data table of IQ scores. a. Use a 0.05 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and…
人 oー + (-12 PUILS] DETAILS DEVORESTAT9 5.E.022.MI. MY NUTES ASK YUUR IEACHER PRACTICE ANOTHER An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. P(x, y) 0 10 15 0.03 0.060.02 0.10 0.04 0.13.0.20 0.10 10 0.01 0.15 0.15 0.01 (a) If the score recorded in the grade book is the total number of points earned on the two parts, what is the expected recorded score E(X + Y)? (Enter your answer to one decimal place.) (b) If the maximum of the two scores is recorded, what is the expected recorded score? (Enter your answer to two decimal places.) Need Help? Watch It Read It Master It MY NOTES ASK YOUR TEACHER 6. [1/1 Points] DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 6.5.002. What is the standard deviation of a sampling distribution called? O the variance MacBook Pro へ "0.3" esc…
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