Homework Answers
Ans:
As,p-value>0.05,we fail to reject the null hypothesis.
There is not sufficient evidence to conclude that there is a significant difference in the mean hourly units of production for the three types of production processes.
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2. Individuals were randomly assigned to three different production processes. The hourly units o...
The data in the table were collected from randomly selected flights at airports in three cities...
The data in the table were collected from randomly selected flights at airports in three cities and indicate the number of minutes that each plane was behind schedule at its departure. City 1 | City 2 | City 3 29 14 a" Perform a one-way ANOVA using α:005 to determine if there is a difference in the average lateness of flights from these three airports. b. Perform a multiple comparison test to determine which pairs are different using α: 0.05....
Cost of Production Report Dover Chemical Company manufactures specialty chemicals by a series of three processes,...
Cost of Production Report
Dover Chemical Company manufactures specialty chemicals by a
series of three processes, all materials being introduced in the
Distilling Department. From the Distilling Department, the
materials pass through the Reaction and Filling departments,
emerging as finished chemicals.
The balance in the account Work in Process— Filling was as
follows on January 1, 2014:
Work in Process— Filling Department ( 3,400 units, 60%
completed):
Direct materials ( 3,400 × $ 9.58)
= $ 32,572
Conversion ( 3,400...
The manager of Roth Corporation, wants to determine whether or not the type of work schedule...
The manager of Roth Corporation, wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each of the 3 proposed work schedules. The following table shows the units of production (per week) under each of the work schedules. Work Schedule (Treatments) Schedule 1 Schedule 2 Schedule 3 60 65 65 58 57 50 60 70...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST =10,800; SSTR =4,500. a....
Please help to do these questions, Thank you so much! Three different brands of tires were...
Please help to do these questions, Thank you so much!
Three different brands of tires were compared for wear characteristics. From each brand of tire, ten tires were randomly selected and subjected to standard wear-testing procedures. The average mileage and the sample standard deviation (both in 1000 miles) obtained for each brand of tire are shown below. The overall mean is 36. 2) Brand C | Brand A | Brand B Average Mileage37 Sample Variance 38 What are the numerical...
A personal computer manufacturer is interested in comparing assembly times for two keyboard assembly processes. Asserbly...
A personal computer manufacturer is interested in comparing assembly times for two keyboard assembly processes. Asserbly times can vary considerably from worker to worker, and the company decides to eliminate this effect by selecting a random sample of 8 workers and timing each worker on each assembly process. Half of the workers are chosen at random to use Process 1 first, and the rest use Process 2 first. For each worker and each process, the assembly time (in minutes) is...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST =10,790; SSTR =4,510. a....
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,820; SSTR =...
ndom samples were selected from three populations. The data obtained are shown below. ease note that...
ndom samples were selected from three populations. The data obtained are shown below. ease note that the sample sizes are not equal. atment 1 Treatment 2 Treatment 3 37 43 28 33 39 32 36 35 33 38 38 40 ompute the overall mean X. t95% confidence using the critical value and p-value approach, test to see if there is a gnificant difference among the means.
ndom samples were selected from three populations. The data obtained are shown below. ease...
Please Help Three different methods for assembling a product were proposed by an industrial engineer. To...
Please Help
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,860;...
The data in the table were collected from randomly selected flights at airports in three cities and indicate the number of minutes that each plane was behind schedule at its departure. City 1 | City 2 | City 3 29 14 a" Perform a one-way ANOVA using α:005 to determine if there is a difference in the average lateness of flights from these three airports. b. Perform a multiple comparison test to determine which pairs are different using α: 0.05....
Cost of Production Report
Dover Chemical Company manufactures specialty chemicals by a
series of three processes, all materials being introduced in the
Distilling Department. From the Distilling Department, the
materials pass through the Reaction and Filling departments,
emerging as finished chemicals.
The balance in the account Work in Process— Filling was as
follows on January 1, 2014:
Work in Process— Filling Department ( 3,400 units, 60%
completed):
Direct materials ( 3,400 × $ 9.58)
= $ 32,572
Conversion ( 3,400...
The manager of Roth Corporation, wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each of the 3 proposed work schedules. The following table shows the units of production (per week) under each of the work schedules. Work Schedule (Treatments) Schedule 1 Schedule 2 Schedule 3 60 65 65 58 57 50 60 70...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST =10,800; SSTR =4,500. a....
Please help to do these questions, Thank you so much!
Three different brands of tires were compared for wear characteristics. From each brand of tire, ten tires were randomly selected and subjected to standard wear-testing procedures. The average mileage and the sample standard deviation (both in 1000 miles) obtained for each brand of tire are shown below. The overall mean is 36. 2) Brand C | Brand A | Brand B Average Mileage37 Sample Variance 38 What are the numerical...
A personal computer manufacturer is interested in comparing assembly times for two keyboard assembly processes. Asserbly times can vary considerably from worker to worker, and the company decides to eliminate this effect by selecting a random sample of 8 workers and timing each worker on each assembly process. Half of the workers are chosen at random to use Process 1 first, and the rest use Process 2 first. For each worker and each process, the assembly time (in minutes) is...
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST =10,790; SSTR =4,510. a....
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,820; SSTR =...
ndom samples were selected from three populations. The data obtained are shown below. ease note that the sample sizes are not equal. atment 1 Treatment 2 Treatment 3 37 43 28 33 39 32 36 35 33 38 38 40 ompute the overall mean X. t95% confidence using the critical value and p-value approach, test to see if there is a gnificant difference among the means.
ndom samples were selected from three populations. The data obtained are shown below. ease...
Please Help
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,860;...
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