Draw ANOVA
Q: QUESTION 11 For an experiment with 3 groups of 10 participants in each group. dfB = O 2 30 4.
A:
Q: Please make it so that I could copy and paste it! thank you Strack, Martin, and Stepper (1988)…
A: Given, sample size (n) = 25 SS = 150 standard deviation (Sd) = √SS/n = √150/25…
Q: ..... ner her right hand or her left hand, what proportion of correct responses would be expected if…
A:
Q: Taxpayers who go to a treasury office to pay their contributions complain that they wait more than 7…
A:
Q: Determine if these was a statistical weight difference (gain/loss in the 2 groups) Using paired…
A: Setting up the null and alternative hypothesis:
Q: e codes to write them in R studio. See attached pic. Course name: probability and statistics for…
A: a) to extract the second row R code = tablename[2,] output = 18.6 56.23 b) to extract fourth…
Q: “Snoqualmie” is a name shared by a waterfall and a tribe of Native Americans. In a study of the…
A: The provided data is,
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: Introduction: It is required to identify the expected proportion of correct responses if the touch…
Q: Method A: Randomly divide a group of 100 people with minor cuts into two groups. Have each group use…
A: The appropriate nature (i.e., survey, observation, or experiment) of the considered methods, which…
Q: A company that manufactures golf balls produces a new type of ball that is supposed to travel…
A: Given : A company that manufactures golf balls produces a new type of ball that is supposed to…
Q: How do they compare? O The average endotoxin concentration in farm homes is more than double the…
A: The mean is calculated as x¯=1n∑i=1nxiThe median is the middle value after the values or…
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: Given: Number of events (x) = 152 Number of trials (x) = 326
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: Emily flipped a coin to select either her right hand or her left hand and the therapists were asked…
Q: The prevalence of a disease in the general population is 0.2%. A diagnostic test is developed that…
A: Note: “Since you have posted a question with multiple sub-parts, as per the guidelines we will solve…
Q: our friend, Stan Darderror, recently completed a cognitive ability test as part of his assessment…
A: The critical value is the value of the test statistic which separates the critical region and the…
Q: Miles per Gallon 28 25 25 23 30 32 21 a. Show tabular computations here b. Show complete solution of…
A: It is given that the Department of Transportation on driving speed and miles per gallon for midsized…
Q: The spotted lanternfly, Lycorma delicatula, is an invasive species to the United States that has the…
A: Given that Length of insect: AVG = 1 inch, SD = 0.15 inchNumber of eggs: AVG = 40 eggs, SD = 5 eggsr…
Q: A 2009 study shpwed that handling money reduces the perception of pain. Two groups of participants…
A: From the given data set: Sample size for money (n1)=9 Sample size for the paper (n2)=9 Level of…
Q: If the coefficient of determination between two independent variables is 0.14, what is the VIF?
A:
Q: The concentration of carbon dioxide (COy) in the atmosphere is increasing rapidly due to our use of…
A: Given information: Pair Control Plot Treated plot Treated plot-Control Plot 1 9.752 10.587…
Q: Many young men in North America and Europe (but not in Asia) tend to think they need more muscle to…
A: Given that, The sample mean x¯=2.35 The sample size n=200 The hypothesized mean μ=0 The standard…
Q: A researcher want to know if there is a relationship between sleep and anxiety. The researcher…
A: For random variables X and Y the value of SP is, SP = Σ (x – x̅)(y – ȳ), where x̅ is the mean of X…
Q: why is there two images of the same working out in answering part two? is it meant to be a different…
A: The two images are the same. The expert copied it again in the solution section.
Q: Could you please highlight the correct answer. and explain it
A: The null hypothesis for a chi square independence test say that two categorical variables are…
Q: Roy ‘s Texaco wants to keep the price of its unleaded gasoline competitive with that of other…
A:
Q: Jane measures the age of death of 4 strains of mice using 40 male mice per strain, with 20 mice from…
A: Given information: Given that Jane measures he age of death of 4 strains of mice using 40 male mice…
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A:
Q: 19. A researcher tested the effects of sleep deprivation and stress on mood. She randomly assigned…
A:
Q: The quality control engineer at Palmer Industries is interested in estimating the tensile strength…
A: The dependent variable is Place (PSI). The independent variables are outside diameter and…
Q: 3.) In a certain university in lloilo, a study was conducted to determine whether the IQ scores of…
A: Solution
Q: The authors of a paper compared two different instruments for measuring a person's capacity for…
A: Suppose μd is the difference of the mean reading for the mini-wright meter and the mean reading for…
Q: What size samples do you need for a 2-group design if you expect to have an effect size of .50 and…
A: Type of experiment: 2-group design (2 samples independent test) Designated Power: 0.71 Effect size:…
Q: Miles per Gallon 28 a. Show tabular computations here b. Show complete solution of the sample…
A: Given that X Y 30 28 50 25 40 25 55 23 30 30 25 32 60 21 25 35 50 26 55 25
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: a. If the touch therapists made random guesses, they would have a 50% chance of guessing correctly.…
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
A researcher was interested to compare the effect of 5 different chemical
concentrations on the growth (in cm) of a particular crop. The plants were
arranged in 20 different pots in the lab conditions by using a specific chemical concentration in 4 different pots.a). Which experimental design you will suggest to compare the effect of 5 different chemical concentrations, justify your statement.
b). What will be the layout of this experiment, denote 5 different chemical
concentrations as A, B, C, D and E.
c). Identify dependent and independent variables in this experiment. Also identify the experimental unit.
d). Draw ANOVA for this particular experiment showing the first two columns.
e). Justify, whether the experiment is a single factor experiment or multi-factor experiment?
Step by step
Solved in 2 steps
- You want to determine the effect of soap on bacterial colonies. In order to make sure that the environment does not affect your experiment, you divide 13 different petri dishes in half - one side is exposed to soap, the other is a control. You may use R but please show all the steps and codes involved. You measure the number of colonies that grow in each petri dish and come up with the following results: petri dish: 1 2 3 4 5 6 7 8 9 10 11 12 13soap: 10 5 7 10 19 11 13 17 19 8 11 10 16control: 20 17 11 17 26 18 21 25 24 17 17 17 21 Perform a complete hypothesis test to see if there is a difference in bacterial colonies between the soap and control dishes.A study was carried out to determine the influence of a trace elementfound in soil on the yield of potato plants grown in that soil, defined asthe weight of potatoes produced at the end of the season. A large fieldwas divided up into 14 smaller sections for this experiment. For eachsection, the experimenter recorded the amount of the trace elementfound (in milligrams per metre squared) and the corresponding weightof the potatoes produced (in kilograms). This information is presentedin the worksheet ‘Dataset5’ in the Excel document. Define X as thetrace element amount and Y as the yield.1. Draw a scatterplot of your data set.Page 52. Calculate the coefficients of a linear equation to predict the yieldY as a function of X.3. Calculate the correlation coefficient for the paired data values.4. Set up the framework for an appropriate statistical test to establish if there is a correlation between the amount of the trace element and the yield. Explain how having the scatterplot referredto…A special education teacher did research on whether or not there is a relationship between the number of students in his class and the number incidents of “acting out” behaviors exhibited by the autistic students in the classroom. He collects data for a year and aggregates them by month. He obtained the statistics below, r= -.863 R2=.74 b= -1.212294 a= 131.176598 10.) How does the presence of more students affect the incidents in the class? a) as students are added the incidences increase b) as students are added the incidences decrease c) the number of students does not affect acting out d) the number of students caused more incidents How much of the variability of acting out is explained by the number of students in the class?___________
- r. Lyte wishes to study speed of Reaction Time to press a button in response to the onset of a lamp. The independent variable (IV) is the color of the light produced by the lamp (red, orange, yellow, green, or blue). Since only 10 participants are available, she elects to administer the IV within-subjects with all 10 participants being exposed to all five levels of the color variable. The order of the color of the light presentation is to be counterbalanced. Using concepts from the textbook, why would Dr. Lyte need to use counterbalancing in this scenario?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 354 trials, the touch therapists were correct 170 times. Complete parts (a) through (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 guesses? nothing (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? nothing (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct…Barry has several Christmas Cactus houseplants. He heard a rumor that they will bloom better if they are put in a dark room from October to November. What experiment could Barry design to test his hypothesis?
- Phosphorous is a chemical that is found in many household cleaning products. Unfortunately, phosphorous also finds its way into surface water, where it can harm fish, plants, and other wildlife. Two methods of phosphorous reduction are being studied. At a random sample of 7 locations, both methods were used and the total phosphorous reduction (mg/L) was recorded. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value a small amount and thereby produce a slightly more "conservative" answer. Things that are labelled i underneath a b c, etc are all part of that part.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 329 trials, the touch therapists were correct 157 times. Complete parts (a) through (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 guesses? 0.5 (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? 0.477 (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists.Phosphorous is a chemical that is found in many household cleaning products. Unfortunately, phosphorous also finds its way into surface water, where it can harm fish, plants, and other wildlife. Two methods of phosphorous reduction are being studied. At a random sample of 7 locations, both methods were used and the total phosphorous reduction (mg/L) was recorded. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value a small amount and thereby produce a slightly more "conservative" answer. Site 1 2 3 4 5 6 7 Method I: 0.013 0.020 0.015 0.055 0.007 0.002 0.010 Method II: 0.014 0.045 0.017 0.039 0.017 0.001 0.013 Do these data indicate a difference (either way) in the average reduction of phosphorous between the two methods? Use α = 0.05. (Let d = Method I − Method II.) (i) What is the level of significance? What is the value of the sample test statistic? (Round…In a science fair project, Emily conducted an experiment in which she tested professional touch Ktherapists 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 357 trials, the touch therapists were correct 169 times. Complete parts (a) through (d). S View an example Get more help. 4- & 87 U 0.5 (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? 0.473 (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists. FAnswer the whole quesrionIn recent years the irradiation of food to reduce bacteria and preserve the food longer has become more common. A company that performs this service has developed four different methods of irradiating food. To determine which is best, it conducts an experiment where different foods are irradiated and the bacteria count is measured. As part of the experiment the following foods are irradiated: meat, poultry, veal, tuna, and yogurt. The results are shown below. True or False: It can be inferred at the 5% significance level that at least two of the treatments differ.Recommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. FreemanMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman