The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments? Days Worked Last Year by 23 EmployeesDepartmentDays WorkedBudgets (5 workers)275261264247257 Payables (10 workers)201272218237256218264240240229Pricing (8 workers)237255231257233244245249 Click here for the Excel Data File Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.) GroupMeannStd. DevVariancesBudgets Payables Pricing Total One-Factor ANOVASourceSSdfMSFp-valueTreatment Error Total Based on the given hypotheses, choose the correct option H<0: μ1 = μ 2 = μ3H1: Not all the means are equalα = .05 Reject the null hypothesis if p-value > 0.05Reject the null hypothesis if p-value < 0.05 On the basis of the above findings, we cannot reject the null hypothesis. FalseTrue Based on the given hypotheses, choose the correct option. H0: σ 21 = σ22 = σ23H1: Not all the variances are equalα = .05 Reject the null hypothesis if H < 8.38Reject the null hypothesis if H > 8.38 Calculate the value of Hcalc. (Round your answer to 2 decimal places.) Hcalc On the basis of the above-determined Hcalc, we fail to reject the null hypotheses. TRUEFALSE The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments? Days Worked Last Year by 23 EmployeesDepartmentDays WorkedBudgets (5 workers)275261264247257 Payables (10 workers)201272218237256218264240240229Pricing (8 workers)237255231257233244245249 Click here for the Excel Data File Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.) GroupMeannStd. DevVariancesBudgets Payables Pricing Total One-Factor ANOVASourceSSdfMSFp-valueTreatment Error Total Based on the given hypotheses, choose the correct option H<0: μ1 = μ 2 = μ3H1: Not all the means are equalα = .05 Reject the null hypothesis if p-value > 0.05Reject the null hypothesis if p-value < 0.05 On the basis of the above findings, we cannot reject the null hypothesis. FalseTrue Based on the given hypotheses, choose the correct option. H0: σ 21 = σ22 = σ23H1: Not all the variances are equalα = .05 Reject the null hypothesis if H < 8.38Reject the null hypothesis if H > 8.38 Calculate the value of Hcalc. (Round your answer to 2 decimal places.) Hcalc On the basis of the above-determined Hcalc, we fail to reject the null hypotheses. TRUEFALSE

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Description: The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodolo

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The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments? Days Worked Last Year by 23 Employees Department Days Worked Budgets (5 workers) 275 261 264 247 257 Payables (10 workers) 201 272 218 237 256 218 264 240 240 229 Pricing (8 workers) 237 255 231 257 233 244 245 249 Click here for the Excel Data File Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.) Group Mean n Std. Dev Variances Budgets Payables Pricing Total One-Factor ANOVA Source SS df MS F p-value Treatment Error Total Based on the given hypotheses, choose the correct option H<0: μ1 = μ 2 = μ3 H1: Not all the means are equal α = .05 Reject the null hypothesis if p-value > 0.05 Reject the null hypothesis if p-value < 0.05 On the basis of the above findings, we cannot reject the null hypothesis. False True

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?

Days Worked Last Year by 23 Employees
Department	Days Worked
Budgets (5 workers)	275	261	264	247	257
Payables (10 workers)	201	272	218	237	256	218	264	240	240	229
Pricing (8 workers)	237	255	231	257	233	244	245	249

Click here for the Excel Data File

Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.)

Group	Mean	n	Std. Dev	Variances
Budgets
Payables
Pricing
Total

One-Factor ANOVA
Source	SS	df	MS	F	p-value
Treatment
Error
Total

Based on the given hypotheses, choose the correct option

H<₀: μ₁ = μ ₂ = μ₃
H₁: Not all the means are equal
α = .05

Reject the null hypothesis if p-value > 0.05
Reject the null hypothesis if p-value < 0.05

On the basis of the above findings, we cannot reject the null hypothesis.

False
True

Based on the given hypotheses, choose the correct option.

H₀: σ ²₁ = σ²₂ = σ²₃
H₁: Not all the variances are equal
α = .05

Reject the null hypothesis if H < 8.38
Reject the null hypothesis if H > 8.38

Calculate the value of H_calc. (Round your answer to 2 decimal places.)

H_calc

On the basis of the above-determined H_calc, we fail to reject the null hypotheses.

TRUE
FALSE

Days Worked Last Year by 23 Employees
Department	Days Worked
Budgets (5 workers)	275	261	264	247	257
Payables (10 workers)	201	272	218	237	256	218	264	240	240	229
Pricing (8 workers)	237	255	231	257	233	244	245	249

Click here for the Excel Data File

Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.)

Group	Mean	n	Std. Dev	Variances
Budgets
Payables
Pricing
Total

One-Factor ANOVA
Source	SS	df	MS	F	p-value
Treatment
Error
Total

Based on the given hypotheses, choose the correct option

H<₀: μ₁ = μ ₂ = μ₃
H₁: Not all the means are equal
α = .05

Reject the null hypothesis if p-value > 0.05
Reject the null hypothesis if p-value < 0.05

On the basis of the above findings, we cannot reject the null hypothesis.

False
True

Based on the given hypotheses, choose the correct option.

H₀: σ ²₁ = σ²₂ = σ²₃
H₁: Not all the variances are equal
α = .05

Reject the null hypothesis if H < 8.38
Reject the null hypothesis if H > 8.38

Calculate the value of H_calc. (Round your answer to 2 decimal places.)

H_calc

On the basis of the above-determined H_calc, we fail to reject the null hypotheses.

TRUE
FALSE

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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