Statistics for Business & Economics
16th Edition
ISBN: 9781337325448
Author: Anderson
Publisher: CENGAGE C
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Textbook Question
Chapter 18.4, Problem 26E
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. Use the Kruskal-Wallis test and α = .05 to determine whether there is a significant difference among the ratings for the products.
Product | ||
A | B | C |
50 | 80 | 60 |
62 | 95 | 45 |
75 | 98 | 30 |
48 | 87 | 58 |
65 | 90 | 57 |
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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.…
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. Use the Kruskal-Wallis test and α = .05 to determine whether there is a significant difference among the ratings for the products.
Product
A
B
C
50
80
60
62
95
45
75
98
30
48
87
58
65
90
57
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.
Chapter 18 Solutions
Statistics for Business & Economics
Ch. 18.1 - The following hypothesis test is to be conducted....Ch. 18.1 - Ten individuals participated in a taste test...Ch. 18.1 - The median number of part-time employees at...Ch. 18.1 - Net assets for the 50 largest stock mutual funds...Ch. 18.1 - The median price of homes in Austin, Texas is...Ch. 18.1 - The median annual income for families living in...Ch. 18.1 - Prob. 7ECh. 18.1 - A Pew Research Center survey asked adults if their...Ch. 18.1 - In a recent poll six hundred adults were asked a...Ch. 18.1 - Nielsen Media Research identified Empire and the...
Ch. 18.1 - Competition in the personal computer market is...Ch. 18.2 - Two fuel additives are tested to determine their...Ch. 18.2 - A sample of 10 men was used in a study to test the...Ch. 18.2 - Percents of on-time arrivals for flights in the...Ch. 18.2 - A test was conducted for two overnight mail...Ch. 18.2 - The LPGA ANA Inspiration tournament was held in...Ch. 18.2 - The Scholastic Aptitude Test (SAT) consists of...Ch. 18.3 - Two fuel additives are being tested to determine...Ch. 18.3 - Samples of starting annual salaries for...Ch. 18.3 - The gap between the earnings of men and women with...Ch. 18.3 - Are Southern and Western states equally prone to...Ch. 18.3 - Each year Bloomberg Businessweek publishes...Ch. 18.3 - Police records show the following numbers of daily...Ch. 18.3 - A certain brand of microwave oven was priced at 10...Ch. 18.3 - Chicago Midway International Airport and...Ch. 18.4 - A sample of 15 consumers provided the following...Ch. 18.4 - Three admission test preparation programs are...Ch. 18.4 - Forty-minute workouts of one of the following...Ch. 18.4 - The National Football League (NFL) holds its...Ch. 18.4 - A large corporation sends many of its first-level...Ch. 18.4 - The better-selling candies are often high in...Ch. 18.5 - Consider the following set of rankings for a...Ch. 18.5 - Prob. 33ECh. 18.5 - Prob. 34ECh. 18.5 - A national study by Harris Interactive, Inc.,...Ch. 18.5 - Prob. 36ECh. 18.5 - A student organization surveyed both current...Ch. 18 - A survey asked the following question: Do you...Ch. 18 - Due to a recent decline in the housing market, the...Ch. 18 - Twelve homemakers were asked to estimate the...Ch. 18 - Prob. 41SECh. 18 - The following data are product weights for the...Ch. 18 - A client wants to determine whether there is a...Ch. 18 - Prob. 44SECh. 18 - Prob. 45SECh. 18 - Prob. 46SECh. 18 - Prob. 47SE
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