Another experiment involving processor speed (Sp) and size of random access memory (RAM) for computers produced the following data Sp1 Sp2 RAM 1 48 37 38 35 37 39 RAM 2 30 35 31 22 26 30 Are the factors Sp and RAM or their interaction statistically significant

Another experiment involving processor speed (Sp) and size of random access memory (RAM) for computers produced the following data Sp1 Sp2 RAM 1 48 37 38 35 37 39 RAM 2 30 35 31 22 26 30 Are the factors Sp and RAM or their interaction statistically significant

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.CR: Chapter 13 Review

Problem 6CR

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A manufacturing company designed a factorial experiment to determine whether the number of defective parts produced by two machines differed and if the number of defective parts produced also depended on whether the raw material needed by each machine was loaded manually or by an automatic feed system. following data give the numbers of defective parts produced. Loading System Manual Automatic 30 30 Machine 1 34 26 20 24 Machine 2 22 28 Use a = 0.05 to test for any significant effect due to machine, loading system, and interaction. Find the value of the test statistic for machine. (Round your answer to two decimal places.) Find the p-value for machine. (Round your answer to three decimal places.) p-value = State your conclusion about machine. O Because the p-value > a = 0.05, machine is not significant. O Because the p-value > a = 0.05, machine is significant. O Because the p-value sa = 0.05, machine is significant. O Because the p-value sa = 0.05, machine is not significant. Find the…
A manufacturing company designed a factorial experiment to determine whether the number of defective parts produced by two machines differed and if the number of defective parts produced also depended on whether the raw material needed by each machine was loaded manually or by an automatic feed system. The following data give the numbers of defective parts produced. Loading System Manual Automatic 31 31 Machine 1 35 25 20 25 Machine 2 23 29 Use a = 0.05 to test for any significant effect due to machine, loading system, and interaction. Set up the ANOVA table. Assume that Factor A is Machine and Factor B is Loading System. If your answer is zero, enter "0". Source Sum of Squares Degrees Mean Square F p-value of Variation (to 2 decimals) of Freedom (to 2 decimals) (to 2 decimals) (to 2 decimals) Factor A Factor B Interaction Error Total The p-value for Factor A is - Select your answer - What is your conclusion with respect to Factor A? - Select your answer - The p-value for Factor B is -…
An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data obtained follow. Analyzer Computerized Electronic Car Compact 51 42 Intermediate 55 43 Full-sized 62 47 Use ? = 0.05 to test for any significant differences. State the null and alternative hypotheses. H0: ?Computerized ≠ ?ElectronicHa: ?Computerized = ?ElectronicH0: ?Computerized = ?Electronic = ?Compact = ?Intermediate = ?Full-sizedHa: Not all the population means are equal. H0: ?Computerized = ?ElectronicHa: ?Computerized ≠ ?ElectronicH0: ?Compact ≠ ?Intermediate ≠ ?Full-sizedHa: ?Compact = ?Intermediate = ?Full-sizedH0: ?Compact = ?Intermediate = ?Full-sizedHa: ?Compact ≠ ?Intermediate ≠ ?Full-sized Find the value of…
An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data obtained follow. Analyzer Computerized Electronic Car Compact 49 41 Intermediate 55 44 Full-sized 64 47 Use ? = 0.05 to test for any significant differences. Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value =
An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data obtained follow. Analyzer Computerized Electronic Car Compact 52 43 Intermediate 55 44 Full sized 61 45 Use ? = 0.05 to test for any significant differences. State the null and alternative hypotheses. H0: ?Compact ≠ ?Intermediate ≠ ?Full-sizedHa: ?Compact = ?Intermediate = ?Full-sized H0: ?Compact = ?Intermediate = ?Full-sizedHa: ?Compact ≠ ?Intermediate ≠ ?Full-sized H0: ?Computerized = ?Electronic = ?Compact = ?Intermediate = ?Full-sizedHa: Not all the population means are equal. H0: ?Computerized ≠ ?ElectronicHa: ?Computerized = ?Electronic H0: ?Computerized = ?ElectronicHa: ?Computerized ≠ ?Electronic Find the…
A researcher is concerned about Australians’ physical activity during the lockdown. S/he wants to understand whether the frequency of physical activity during the COVID-19 lockdown depends on the types of physical activity. The following table shows the frequency of doing different types of physical activity during lockdown in a random sample of Australians (n= 218218). Use the table to answer the questions which follow. The researcher would like to answer the following research question: “Do Australians’ frequency of physical activity during lockdown depends on the exercise types?” S/he sets up the following null and alternative hypotheses to answer the research question. ?0:H0: There is no association between types of physical activity and frequency of physical activity during lockdown. ?1:H1: There is an association between types of physical activity and frequency of physical activity during lockdown. What is the expected value for Yoga participants who exercised weekly? (3dp)…
4. An experiment was conducted to examine the perfomance (as measured by the mmber of errors made) on a motor skills task. Twenty-four subjects (12 young and 12 old) were assigned to either an easy or hard motor skills task. There were two factors in the study: age (young/old) and difficulty of the motor skills task (easy/hard). The mumber of erors made on the motor skills task was recorded for each person and is presented in the table below Difficulty Easy Hard 3 4 Young 3 Age 10 11 14 Old 4 15 16 4 17 a. State the mull and altemative hypotheses below b. Report the results of the hypothesis tests in #a below. Be sure to express the results in the context of the study and use APA format as appropriate. Sketch, abel and describe any significant interaction(s). (For your sketch, it is fine to make it look like the plot shown in SPSS.) Use a = .05 for each test 659 99
A researcher is concerned about Australians’ physical activity during the lockdown. S/he wants to understand whether the frequency of physical activity during the COVID-19 lockdown depends on the types of physical activity. The following table shows the frequency of doing different types of physical activity during lockdown in a random sample of Australians (n= 218218). Use the table to answer the questions which follow. The researcher would like to answer the following research question: “Do Australians’ frequency of physical activity during lockdown depends on the exercise types?” S/he sets up the following null and alternative hypotheses to answer the research question. ?0:H0: There is no association between types of physical activity and frequency of physical activity during lockdown. ?1:H1: There is an association between types of physical activity and frequency of physical activity during lockdown. What is the expected value for Yoga participants who exercised weekly? (3dp)…
The dry shear strength of birch plywood bonded with different resin glues was studied with a completely randomized designed experiment. Here are the data: Glue A (102; 58; 45; 79; 68; 63; 117) Glue C (100; 102; 80; 119) Glue F (220; 243; 189; 176; 176). SSE = 8167.55; MSE = 628.27; and F stat = 37.99. Define the appropriate null and alternate hypotheses. A. H1: μ1 = μ2 = μ3 vs Ho: At least 2 of the means differ B. Ho: μ1 ≠ μ2 ≠μ3 vs H1: μ1 = μ2 = μ3 C. H0: μ1 = μ2 = μ3 vs H1: At least 2 of the means differ D. Ho: At least 2 of the means differ vs H1: μ1 = μ2 = μ3
A researcher is concerned about Australians’ physical activity during the lockdown. S/he wants to understand whether the frequency of physical activity during the COVID-19 lockdown depends on the types of physical activity. The following table shows the frequency of doing different types of physical activity during lockdown in a random sample of Australians (n= 218218). Use the table to answer the questions which follow. What proportion of the participants in the study did physical activity several times? What proportion of the Running or jogging participants exercised weekly? What proportion of the participants who exercised daily were Yoga participants? The researcher would like to answer the following research question: “Do Australians’ frequency of physical activity during lockdown depends on the exercise types?” S/he sets up the following null and alternative hypotheses to answer the research question. ?0:H0: There is no association between types of physical activity and…
A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a year. A researcher randomly selects 20 women and obtained onto the data below.