The data in the table below represent the number of hours of pain relief provided by 5 different brands of headache tablets administered to 25 subjects, who were randomly divided into 5 groups, and each group was treated to a different brand. Tablet A B C D E 5 3 2 7 4 5 3 6 8 2 4 9 6 3 1 4 3 7 4 7 Total 26 39 20 14 33 132 Mean 5.2 7.8 2.8 6.6 5.28 Perform the analysis of variance, and test the hypothesis at the 0.05 level of significance that the mean number of hours of relief provided by the tablets is the same for all 5 brands. 9 7 8 6 9

Q: One way analysis of variance is used to test for

A: One way analysis of variance also known as ANOVA.

Q: assumptions are required to perform an analysis of variance.

A: What is Analysis of Variance (ANOVA)? Analysis of variance (ANOVA) is an analysis tool used in…

Q: Could you explain the difference of homogeneity of variance and heterogeneity of variance?

A: Given that  We have to explain  the difference of homogeneity of variance and heterogeneity of…

Q: How would you explain the analysis of variance, assuming that your audience has not had a statistics…

A:

Q: To study the effect of temperature on yield in a chemical process, five batches were produced at…

A: We have to perform One way ANOVA.

Q: Two college instructors are interested in whether or not there is any variation in the way they…

A: Given          Hypothesis of interest:                 Under the null hypothesis the test…

Q: When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to…

A: Given information, n=41x¯=107s=9000=94.8683μ=120

Q: One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by…

A: Given Sample size, n=30 Sample variance, s2=480 Population variance, σ2=300

Q: The analysis of variance methodology will show that there really is a difference between the means…

A: When the between-group variance is significantly larger than the within-group variance, then there…

Q: To obtain a maximum amount of variance, an item ought to have a degree of difficulty of what?

A: To obtain a maximum amount of variance an item ought to have a degree of difficulty is the number of…

Q: You are curious whether the different teaching styles of teachers you observe at the elementary…

A: The null and alternate hypothesis is H0 : μ1=μ2=μ3HA : Not all the population means are equal Follow…

Q: Discuss merits and demerits of variance.

A:

Q: Explain what the purpose of an Analysis of Variance is.

A: A ANOVA is a statistical method for making simultaneous comparisons between two or more group means.…

Q: Explain the terms relative risk, odds ratio, and Pearson correlational coefficient and explain when…

A: Relative Risk (RR) Odds Ratio (OR) & Pearson Correlational Coefficient

Q: Chemist Ellen has developed four different types of fertilizers for trees. She used the fertilizer…

A: The one-way analysis of variance is a statistical technique used for the comparison of more than two…

Q: True or False In general, a sample with a large variance is more likely to produce a significant…

A: Note that as the variance increases, p-value also tends to increase. To produce a significant…

Q: Why would we run a two-way analysis of variance and what effects would we look at for interpretation…

A: We have to tell about TWO - WAY ANOVA (Two way analysis of variance)

Q: i) Find the regression equation for predicting 7-minute screen scores (Y) from the Cognitive series…

A: Given :  We have given the values of X and Y variable X as a Scores in Cognitive series and Y as a…

Q: You are doing a one way analysis of variance on the fuel consumption of different makes of cars. You…

A: Suppose we are doing one-way analysis on the fuel consumption of different makes of cars. The total…

Q: Professor Hayashi wants to see if a new Canvas Homework system has an effect on how well students…

A: Effect Size:  We want to compute the Cohen's d. The following information has been provided: Xˉ=81.7…

Q: A researcher wishes to test if the variance of scores on a particular exam is the same for college…

A: The given hypothesis is H0:σA2σB2=1 Versus Ha:σA2σB2≠1

Q: An analysis of variance produces SSbetween = 40 and MSbetween = 20. In this analysis, how many…

A: Solution: From the given information, SSbetween=40 and MSbetween =20. Then,

Q: Why do we want to avoid bias when collecting data?

A: Bias : It is any trend or deviation from the truth in data collection, data analysis, interpretation…

Q: An alternative hypothesis must include the anticipated direction of variance. True  False

A: We have given statement  "An alternative hypothesis must include the anticipated direction of…

Q: Explain Computing Variances by Conditioning.

A:

Q: Please answer number 15 and 16 in the photo and use the question in the photo to answer. (Based on…

A: Step 1:Given:Sample size for both cyclists: n = 35Variance of the first cyclist: s12 ​= 23.8Variance…

Q: Earlier this semester, we learned to use 2-Sample-TTest to compare the population means of two…

A: Solution: From the given information,

Q: The data in the following table, part of a set of data collected by Ledolter and Hogg (see…

A: The collected data set is given as follows: mpg Citympg…

Q: What's the variance i dont under stand

A: Given information X~Bin(n,p) q=1-p Mean=np and Variance=np(1-p)

Q: Explain Two-Way Analysis of Variance?

A: ANOVA: Anova is used for comparing the means whether they are equal or different.

Q: Provide an example of a research project in your hometown where the one-sample chi-square test would…

A: A chi square test is used to test the comparison between observed and expected results. The main…

Q: what test is used to determine whether two population means are different when the variance are…

A: The test that is used to determine if the two population means are different when the population…