You design an experiment that manipulates the following factors (and levels): method of presenting material (visual, auditory); difficulty of material (easy, difficult); and amount of material (low, moderate, high). For a completely independent between-groups design with 10 participants per group, how many participants will you need? 80 70 120 60 There is not enough information to tell

You design an experiment that manipulates the following factors (and levels): method of presenting material (visual, auditory); difficulty of material (easy, difficult); and amount of material (low, moderate, high). For a completely independent between-groups design with 10 participants per group, how many participants will you need? 80 70 120 60 There is not enough information to tell

Name: You design an experiment that manipulates the following factors (and
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: You design an experiment that manipulates the following factors (and levels): method of presenting materiíal (visual, auditory); difficultyof material (easy, difficult); and amount of material (low, moderate, high). For a completely independent betw

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

You wish to determine the impact expressive writing has on days spent in the hospital for elderly adults. However, it is difficult to estimate the population average of days spent in the hospital. Thus, we recruit 14 elderly adults and randomly assigned half to either write expressively about their most traumatic life event or to write about their plans for that day- both groups write 20-minute essays four days in a row and six months later are asked how many days they have spent in the hospital. Expressive writing condition: 2, 5, 1, 4, 4, 2, 3 Control condition: 8, 8, 5, 2, 7, 5, 7 Which statistical test would you select: Ho: H₁: Enter the data above into and JAMOVI and use the correct statistical procedure to test the null hypothesis - answer the following questions: What is the mean difference between the two samples? What is the standard error of the mean? What is the appropriate 95% CI? [ What is the d-effect size? What is the t-observed? } Based on the p-value (a = .05) should…
Hello. Could anyone help me on this question? I have tried it four times and only one attempt left. What I am confusing is that some choice are not individual and variables. Like all young children, children who eat snack and cartoon characters. But if i leave them there, it shows me I am wrong. Pls help me on this and explanation would be appreciated. Thanks!
I need help with 2, 3 and 6.
StarHortons Cup, the coffee company, wants to determine how long caffeine lasts throughout the day when individuals have a cup of one of their 3 types of coffee at 9am. They will then measure the levels of caffeine in these individuals’ systems at 10am, 12am, 2pm, 4pm, 6pm and 8pm. They want to have at least 20 observations per group. How many separate/distinct groups of participants are needed if they want to conduct this experiment using a mixed-measures ANOVA? 18 6 20 3
Last time you didn’t answer question c,i) in terms of the variables of score and hours. Also write the answers in more depth
This is a SAS question. You want to randomly assign 48 subjects into two groups (Placebo and Drug). Write a DATA step to do this in such a way as to ensure there are exactly 24 subjects in each group. Can you think of how to do this so that in each group of eight subjects, there are exactly four Placebo and four Drug assignments? (Hint: Create six blocks of eight subjects each.) I know how to do the first part, it is the second part that is hard for me to figure out. Thank you!
The relative effectiveness of two different sales techniques was tested on 12 volunteer housewives. Each housewife was exposed to each sales technique and asked to buy a certain product, the same product in all cases. At the end of each exposure, each housewife rated the technique with a 1 if she felt she would have agreed to buy the product and a 0 if she probably would not have bought the product. Tech 1 2 3 4 1 1 1 2 0 1 1 1 1 0 5 6 7 8 9 10 1 Housewife 0 0 0 0 0 Test Ho: P₁=p₂ versus H₂: P₁ P₂ Use large sample approximations and compare results. 0 0 1 1 1 0 11 12 01 0 1 a) Use Cochran's test b) Rearrange the data and use McNemar's test c) use Fischer exact test d)Ignore the blocking effect in this experiment and treat the data as if 24 difference housewives were used.
Read the passage of Prefer Pain and answer the questions carefully to get the correct answers.
A campus researcher wanted to investigate the factors that affect visitor travel time in a complex, multilevel building on campus. Specifically, he wanted to determine whether different building signs (building maps versus wall signage) affect the total amount of time visitors require to reach their destination and whether that time depends on whether the starting location is inside or outside the building. Three subjects were assigned to each of the combinations of signs and starting locations, and travel time in seconds from beginning to destination was recorded. How should the data be analyzed? Wall Signs Map Starting Room Interior 141, 119, 238 85, 94, 126 Randomized block design O Completely randomized design 2 x 2 factorial design Levene's test Exterior 224, 339, 139 226, 129, 130
Most people love chocolate for its great taste. But does it also make you smarter? A scatterplot like this one recently appeared in the New England Journal of Medicine. The explanatory variable is the chocolate consumption per person for a sample of countries. The response variable is the number of Nobel Prizes per 10 million residents of that country. 35- r = 0.791 • Switzerland 30- Denmark 25- Austria: • Norway 20- • United Kingdom 15- The Netherlands, United States • Ireland • Germany 10- . France • Finland Belgium. Canada. • Australia Portugal Japan Greese • Spain Poland Italy 0- China Brazil 10 15 Chocolate consumption (kg/yr per person) Interpret the correlation of r = 0.791. Nobel laureates (per 10 million people)
A nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of “fruit drink”, that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results. Juice Content Gender Female Gender Male Total 100% 15 15 30 1%-99% 55 25 80 0% 30 10 40 100 50 150 The chi‑square statistic for the null hypothesis of independence has: - 6 degrees of freedom. - 3 degrees of freedom. - 2 degrees of freedom. - 4 degrees of freedom.
3. Determine whether each of the following settings describes an observational study or an experiment. Explain your reasoning. (a) A veterinarian wants to see if a new diet food helps dogs to lose weight. She selects 10 golden retrievers in her practice and records their weights. Then she gives the dogs the new food for one month. She weighs the dogs again after one month and compares the weights. (b) A researcher wants to see how many college students are willing to clean up after someone else. He goes to the cafeteria and leaves a tray of dirty dishes out on a table during lunch time. Then he waits and calculates of the proportion of students who clean up the tray.