Homework Answers
Option(A) H0: μ1 = μ2 = μ3
Ha: At least one mean is different from the others. (claim)
>> In one-way ANOVA test, the null hypothesis is that all the population means are equal and the alternative hypothesis is that at least one mean is different from the others.
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The table to the right shows the cost per ounce (in dollars) for a random sample...
Question Help Fair stain removal The table to the night shows the cost per ounce (in...
Question Help Fair stain removal The table to the night shows the cost per ounce (in dollars) for a random sample of toothpastes exhibiting very good stain removal good stain removal and tar stain removal Ale=0.05, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA test by completing parts a through d Assume that each sample is drawn from a normal population, that the samples are independent of each other and that the populations...
3. The table to the right shows the cost per ounce (in dollars) for a random...
3. The table to the right shows the cost per ounce (in dollars) for a random sample of toothpastes exhibiting very good stain removal, goad stain removal, and fair stain removal. At α= 0.01, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA test by completing parts a through d. Assume that each sample is drawn from a normal population, that the samples are independent of each other, and that the populations have the...
The accompanying table shows the costs per ounce (in dollars) for a sample of toothpastes exhibiting very gcod stain removal, good stain removal, and fair stain removal. At a-005, there is evidence t...
The accompanying table shows the costs per ounce (in dollars) for a sample of toothpastes exhibiting very gcod stain removal, good stain removal, and fair stain removal. At a-005, there is evidence that at least one mean cost per cunce is diffe others. Perform a Schette Tost to determine which means have a signiticant difference Click here to view the toothpaste data and ANOVA table Toothpaste Data and ANOVA Table The critical value is Round to two decimal places as...
The table below shows the price per gallon (in dollars) for a random sample of exterior...
The table below shows the price per gallon (in dollars) for a random sample of exterior deck treatments. At a = 0.05, can you reject the claim that the mean price is the same for the three types of treatments? Perform a one-way ANOVA test by completing parts a through d. Assume that each sample is drawn from a normal population, the samples are independent of each other, and the populations have the same variances. 1 8 25 Semitransparent treatments...
10.4.11-T E Question Help The accompanying data table shows the energy consumed (in millions of Btu)...
10.4.11-T E Question Help The accompanying data table shows the energy consumed (in millions of Btu) in one year for a random sample of households from four regions. At ? = 0.10, can you conclude that the mean energy consumption of at least one region is different from the others? Perform a one-way ANOVA test by completing parts a through d. If convenient, use technology to solve the problem. Assume that each sample is normaly distributed and that the population...
17. [10pts) The table shows the cost per ounce for a sample of rice with short,...
17. [10pts) The table shows the cost per ounce for a sample of rice with short, medium, or long grain type. At a 0.05 can you conclude that at least one mean price per once is different than the others? 0.48 Short 0.35 0.49 0.60 0.03 Medium 0.60 0.44 0.69 0.70 Long 0.75 0.65 0.72 0.69 0.68 0.55 2 points Extra Credit: Fill out the incomplete ANOVA table. mean squares F Sum of squares degrees of freedom 0.0619 Variation Class...
5.48 Work hours and education: The General Social Survey collects data on demographics, education, and work,...
5.48 Work hours and education: The General Social Survey collects data on demographics, education, and work, among many other characteristics of US residents. Using ANOVA, we can consider educational attainment levels for all 1,172 respondents at once. Below are the distributions of hours worked by educational attainment and relevant summary statistics that will be helpful in carrying out this analysis. Educational attainment Less than HS (1) HS (2) Jr Coll (3) Bachelor's (4) Graduate (5) Total Mean 38.67 39.6 41.39...
Question Help The data found below measure the amounts of greenhouse gas emissions from three types...
Question Help The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons per year expressed as CO2 equivalents Use a 005 significance level to test the claim that the different types of vehicle have the same mean amount of greenhouse gas emissions. Based on the results, does the type of vehicle appear to affect the amount of greenhouse gas emissions? III Click the icon to view the data What...
need help ASAP this question 17. (10pts) The table shows the cost per ounce for a...
need help ASAP this question
17. (10pts) The table shows the cost per ounce for a sample of rice with short, medium, or long grain type. At a 0.05 can you conclude that at least one mean price per omnce is different than the others? Short 0.35 0.49 Medium 0.60 0.44 Long 0.75 0.65 0.60 0.63 0.68 0.48 0.69 0.70 0.55 0.72 0.69 2 points Extra Credit: Fill out the incomplete ANOVA table. Sum of squares degrees of freedom 0.06-19...
Refer to the accompanying datatable, which shows the amounts of nicotine (mg per cigarette) in king-...
Refer to the accompanying datatable, which shows the amounts of nicotine (mg per cigarette) in king- sigarettes, 100 menthol cigarettes and 100-mm nonmental cigarettes. The king-size cigarettes are no litered, while the 100-mm menthol cigarettes and the 100-mm nonmenthol cigarettes are flered. Use a 0.06 significance level to test the claim that the three categories of cigarettes yield the same man amount of nicotine. Given that only the king size cigarettes are not fired, do the Stars appear to make...
Question Help Fair stain removal The table to the night shows the cost per ounce (in dollars) for a random sample of toothpastes exhibiting very good stain removal good stain removal and tar stain removal Ale=0.05, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA test by completing parts a through d Assume that each sample is drawn from a normal population, that the samples are independent of each other and that the populations...
3. The table to the right shows the cost per ounce (in dollars) for a random sample of toothpastes exhibiting very good stain removal, goad stain removal, and fair stain removal. At α= 0.01, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA test by completing parts a through d. Assume that each sample is drawn from a normal population, that the samples are independent of each other, and that the populations have the...
The accompanying table shows the costs per ounce (in dollars) for a sample of toothpastes exhibiting very gcod stain removal, good stain removal, and fair stain removal. At a-005, there is evidence that at least one mean cost per cunce is diffe others. Perform a Schette Tost to determine which means have a signiticant difference Click here to view the toothpaste data and ANOVA table Toothpaste Data and ANOVA Table The critical value is Round to two decimal places as...
The table below shows the price per gallon (in dollars) for a random sample of exterior deck treatments. At a = 0.05, can you reject the claim that the mean price is the same for the three types of treatments? Perform a one-way ANOVA test by completing parts a through d. Assume that each sample is drawn from a normal population, the samples are independent of each other, and the populations have the same variances. 1 8 25 Semitransparent treatments...
10.4.11-T E Question Help The accompanying data table shows the energy consumed (in millions of Btu) in one year for a random sample of households from four regions. At ? = 0.10, can you conclude that the mean energy consumption of at least one region is different from the others? Perform a one-way ANOVA test by completing parts a through d. If convenient, use technology to solve the problem. Assume that each sample is normaly distributed and that the population...
17. [10pts) The table shows the cost per ounce for a sample of rice with short, medium, or long grain type. At a 0.05 can you conclude that at least one mean price per once is different than the others? 0.48 Short 0.35 0.49 0.60 0.03 Medium 0.60 0.44 0.69 0.70 Long 0.75 0.65 0.72 0.69 0.68 0.55 2 points Extra Credit: Fill out the incomplete ANOVA table. mean squares F Sum of squares degrees of freedom 0.0619 Variation Class...
5.48 Work hours and education: The General Social Survey collects data on demographics, education, and work, among many other characteristics of US residents. Using ANOVA, we can consider educational attainment levels for all 1,172 respondents at once. Below are the distributions of hours worked by educational attainment and relevant summary statistics that will be helpful in carrying out this analysis. Educational attainment Less than HS (1) HS (2) Jr Coll (3) Bachelor's (4) Graduate (5) Total Mean 38.67 39.6 41.39...
Question Help The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons per year expressed as CO2 equivalents Use a 005 significance level to test the claim that the different types of vehicle have the same mean amount of greenhouse gas emissions. Based on the results, does the type of vehicle appear to affect the amount of greenhouse gas emissions? III Click the icon to view the data What...
need help ASAP this question
17. (10pts) The table shows the cost per ounce for a sample of rice with short, medium, or long grain type. At a 0.05 can you conclude that at least one mean price per omnce is different than the others? Short 0.35 0.49 Medium 0.60 0.44 Long 0.75 0.65 0.60 0.63 0.68 0.48 0.69 0.70 0.55 0.72 0.69 2 points Extra Credit: Fill out the incomplete ANOVA table. Sum of squares degrees of freedom 0.06-19...
Refer to the accompanying datatable, which shows the amounts of nicotine (mg per cigarette) in king- sigarettes, 100 menthol cigarettes and 100-mm nonmental cigarettes. The king-size cigarettes are no litered, while the 100-mm menthol cigarettes and the 100-mm nonmenthol cigarettes are flered. Use a 0.06 significance level to test the claim that the three categories of cigarettes yield the same man amount of nicotine. Given that only the king size cigarettes are not fired, do the Stars appear to make...
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