Three products received the following performance rating by a panel of 15 consumers. Products A B C 50 80 60 62 95 45 75 98 30 48 87 58 65 90 57 Use the Kruskal-Wallis Test and α = 0.05 to determine whether there is significant difference in the performance ratings for the products.
Q: For samples selected from a population with µ = 100 and σ = 15, which of the following has the…
A: As the sample size increases the standard error of the mean will become smaller. Given; μ=100σ=15
Q: An independent-measures research study compares three treatment conditions using a sample of n= 10…
A: Given that, for three samples , each with n =10 observations have SS1 =10 , SS2 =20 and SS3 =15. We…
Q: Based on Mann-Whitney U test, compute the rank for the number 44?
A:
Q: An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X…
A:
Q: For the data set (-1,-2), (1, 2), (4, 6), (7, 6), (12, 10), carry out the hypothesis test Ho B1 0 H…
A: Given question is :
Q: Using the same contingency table from the previous question, determine the x statistic using a…
A: Contingency/cross-tabulation or cross tab is a table in a matrix format that displays the…
Q: An independent-measures research study compares three treatment conditions using a sample of n = 10…
A: Given, SSbetween=?
Q: If other factors are held constant, which set of sample characteristics is most likely to lead a…
A: Let us consider σ=35.
Q: sample consisting of four pieces of luggage was selected from among the luggage checked at an…
A: Here we want to find all possible values for X5
Q: A sample of 15 consumers provided the following product ratings for three different prod- ucts. Five…
A:
Q: If a sample of size 30 is selected, the value of A for the probablility P(t 2A) - 0.1 is 1.311 1.310…
A:
Q: Given that the random viriable X has mean µ = 90 and SD e= 15, find the mean and SD of each of the…
A:
Q: ) For distribution A, M = 20 and SD = 7. For distribution B, the M = 23 and SD = 2. In which…
A: GivenFor distribution A Mean(M)=20standard deviation(SD) = 7For distribution BMean(M)=23stdandard…
Q: Compute the standardized test statistic, X2, to test the claim o2>11.4 if n 18, s 16.2, and a= 0.01.…
A:
Q: In each of Exercises, use the Mann–Whitney test to perform the required hypothesis test Math and…
A: The aim is to test whether the students with fewer than 2 years of the high school algebra have the…
Q: Three admission test preparation programs are being evaluated. Suppose the scores obtained by a…
A: answer is explained below
Q: Use the appropriate table or calculator to find the following: (a) ta for a 80% hypothesis test, two…
A: (a) The degree of freedom is, df=n-1 =90-1 =89 Critical values: By using the t-table, the…
Q: An instructor has given a short quiz consisting of two parts. For a randomly selected student, let…
A:
Q: An agriculturist claims that she has cultivated a new variety of orange that has a significantly…
A: Given Information: Claim: New variety of orange has a significantly higher content of vitamin C than…
Q: Use the following information to answer question. n=6,Σχ= 16, Σx2 - 98. The variance S2 is Select…
A:
Q: 3. Random samples of four different kinds of cereal show the following number suggested serving size…
A: Anova is used to measure the mean significance between three or more groups. It is a type of…
Q: 9) You roll a die 48 times wwith the following results. Number | 1|2| 3| 4|5|6 Frequency 2 4 12 13…
A:
Q: Find the margin of error for the given values of c, σ, and n. c=0.90, σ=3.8, n=36…
A: Given : C=0.90 σ=3.8 n=36 Zα2=1.645
Q: t(23) = 3.20, p = .01.
A: Given, t(23)=3.20 p=0.01
Q: An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X…
A: For the given data Find the given ( a ) and (b )
Q: 3. Find put using the Mann-Whitney U test whether there is significant difference between the…
A: Mann Whitney U test (Non parametric test )
Q: A survey of a sample of undergraduate students in the department of science in a university revealed…
A: Probability of occurrence of an event is number of favorable cases divided by total number of…
Q: Consider an experiment involving n = 300 trials and K=5 cells. The observed frequencies resulting…
A: Null hypothesis; H0: p1 =p1=0.1, p2=0.2, p3=0.3, p4=0.2, p4=0.2 Under the null hypothesis, the…
Q: A vending machine company wants to check three of its machines to determine if they are properly…
A: Hypothesis: The null and alternative hypotheses are given below: H0: There is no difference in the…
Q: Find the value of test statistic F, if MST= 31.744 , and SSE= 17.36, P=3 and N=17.
A:
Q: A researcher administers a treatment to a sample of participants selected from a population with u =…
A:
Q: For a population with u = 80 and o = 12, what is the z score corresponding to X = 92? O +0.50 O…
A: Given : Mean (μ) = 80 Standard deviation (σ) = 12 X = 92
Q: he numbers of state parks found in selected states in three different regions of the country are…
A: Anova is a type of parametric test. It used to determine the mean significance between the three or…
Q: 5. The following tables given information about the weeki, number of pizzas soid at two outlets of…
A: According to question We have to select two statements that are true about the number ofPizzas sold…
Q: Suppose the following data is a realization (rounded) of a random sample onX. Obtain a histogram…
A: The given data is: 9,39 ,38 ,23 ,8 ,47 ,21, 22 ,18 ,10 ,17 ,22 ,14, 9, 5, 26, 11, 31, 15 ,25 ,9 ,29,…
Q: Which of the following is a two-tailed test? O Ho: µ = 89, H1:4 84 %3D O Họ: µ = 54, H1:4#54
A: Given,H0:μ=89 , H1:μ<89H0:μ=84 , H1:μ>84H0:μ=54 , H1:μ≠54
Q: The principal wants to determine if the teaching strategies of his teachers used in online teaching…
A: For the given data 21. what is the statistical decision 22. what is the conclusion
Q: If we take random samples of size n = 6 from this population, the number of possible samples is: a…
A: Given, The instructor takes a random sample of size from the population data and obtains the…
Q: The null hypothesis for a research study states that u = 80. If a researcher obtains a sample of n =…
A: It is given that Sample size n = 25 Sample mean M = 89 SS = 108
Q: An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X…
A: The given data is based on the number of points earned in quiz consisting of two parts. We have to…
Q: 1. In an experiment with t = 4 population means and sample sizes of n₁ = 5, n2 = 6, n3 = 4, and n4 =…
A: a. Consider the given four linear combinations of the sample means,…
Q: b. A car manufacturer is interested in determining the association between the car size and car…
A: It is given that:
Q: An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X…
A: a) Compute the expected recorded score using the formula: EX+Y=∑i∑jxi+yipxi,yj…
Q: 9. A survey on a sample of persons who played at least one of the video games P, Q and R yielded the…
A: We use Vann diagram to find all values
Q: In Mendel's experiment, he obtained 724 plants with red flowers and 210 with white flowers in his…
A: The hypothesis test is a statistical method in which one using the sample data try to check the…
Q: and o from the given parameters of the population and sample size. Determine H= 84, o = 8, n= 64
A: According to the given information, we have μ=84σ=8n=64
Q: An independent-measures experiment with three treatment conditions has a sample of n = 10 scores in…
A: An independent-measures experiment with three treatment conditions has a sample of n = 10 scores in…
Q: Conduct a single-sample t-test for the following data set, assuming that u = 25.00.
A: Single t-test is expected to perform, it is assumed that u=25 Hypothesis can be constructed as: H0:…
Q: Ten randomly selected people took an 1Q test A, and next day they took a very similar IQ test B.…
A: From the provided information, Sample size (n) = 10 Level of significance (α) = 0.01
Three products received the following performance rating by a panel of 15 consumers.
Products
A B C
50 80 60
62 95 45
75 98 30
48 87 58
65 90 57
Use the Kruskal-Wallis Test and α = 0.05 to determine whether there is significant difference in the performance ratings for
the products.
Step by step
Solved in 2 steps with 3 images
- Two candidates X and Y at the BS Examination obtained the following marks in 10 papers.Paper I II III IV V VI VII VIII IX XX 58 49 76 80 47 72 61 59 77 48Y 39 38 86 72 75 69 57 49 83 66 a) Which of the candidate showed a more consistent performance?b) Who gained better marks?Use the Kruskal-Wallis Test and α = 0.05 to determine whether there is significant difference in the performance ratings forthe products.If a researcher reported for a single-sample t-test that t(17) = 2.90, p<.02, how many subjects were there in the study?
- Compute the standardized test statistic, X2, to test the claim σ2≤22.4 if n=20, s2=43.4, and α=0.01. A. 36.813 B. 12.82 C. 9.322 D. 33.41Find the z-score corresponding to a score of X=50. u=60 and o=5 u=45 and o=5 u=40 and o=5 u=37 and o=5 u=59 and o=5A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Test by using α=0.05. Their data is given below. Machine A Machine B Machine C 11.8 11.7 12.2 12.1 11.9 12.1 12.0 11.7 12.0 11.9 11.8 11.9 12.1 12.0 12.2 Group of answer choices There is sufficient evidence to reject the claim that the proportions are equal because the p-value 0.0255 < 0.05 There is insufficient evidence to conclude the claim that the proportions are equal because the p-value 0.0255 < 0.05 There is insufficient evidence to reject the claim that the proportions are equal because the p-value 0.0255 < 0.05 There is sufficient evidence to conclude the claim that the proportions are equal because the p-value 0.0255 < 0.05
- a major cereal manufacturer is awarding prize certificates in its #1 cereal. a random sample of 60 cereal boxes is selected and 5 are found to contain prize certificates. find the 90% C.I for the true proportion of prize certificates.Are the following results significant at α=.01? F(2,27) =10.56, p=.02Use the following summary table to answer (a) – (d). Source SS df MS F Fcv (α=.05) Between Treatments 106.71 2 Within Treatments 27 Between Subjects 123.30 9 Error Total 293.00 29 What type of design is this? Complete the summary table. How many conditions (k) are there? What is n?
- A reaserach study comparing three treatments with n=5 in each treatment produces T1=5, T2=10, T3= 15, with SS1=6, SS2=9, SS3=9, and EX2(squared)= 94. For this study what is the SS within?A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Product A B C 59 89 69 63 94 44 74 98 39 48 80 58 64 99 50 Use the Kruskal-Wallis test and ? = 0.05 to determine whether there is a significant difference among the ratings for the products. State the null and alternative hypotheses. -H0: MedianA = MedianB = MedianCHa: MedianA < MedianB > MedianC -H0: MedianA ≠ MedianB ≠ MedianCHa: MedianA = MedianB = MedianC -H0: MedianA = MedianB = MedianCHa: MedianA ≠ MedianB ≠ MedianC -H0: All populations of product ratings are identical.Ha: Not all populations of product ratings are identical. -H0: Not all populations of product ratings are identical.Ha: All populations of product ratings are identical. Find the value of the test statistic. Answer=?? Find the p-value. (Round your answer to three decimal places.) p-value =?? State your conclusion.…Are the following results significant at α=.01? F(2,27) =19.56, p=.001 .Yes .No