menu
bartleby
search
close search
Hit Return to see all results

The manager of a computer software company wishes to study the number of hours per week senior executives by type of industryspend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the 0.05significance level, can she conclude there is a difference in the mean number of hours spent per week by industry?TTBankingRetailInsurance12810101066Rectangular Snip1288101610Click here for the Excel Data File1. State the null hypothesis.но р1u3H1 Treatment meansall the same 2. What is the decision rule? (Round your answer to 2 decimal places.)F 0.05>Rectangular Snip3. Complete the ANOVA table. (Round your SS, MS, and Fvalues to 2 decimal places.)Analysis of VarianceSourceTreatmentsErrorSSdfMSF4. State your decision regarding the null hypothesis.Decision:Но

Question
Banking Retail Insurance
12 8 10
10 8 8
10 6 6
12 8 8
10 10 10
The manager of a computer software company wishes to study the number of hours per week senior executives by type of industry
spend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the 0.05
significance level, can she conclude there is a difference in the mean number of hours spent per week by industry?
TT
Banking
Retail
Insurance
12
8
10
10
10
6
6
Rectangular Snip
12
8
8
10
16
10
Click here for the Excel Data File
1. State the null hypothesis.
но р1
u3
H1 Treatment means
all the same
help_outline

Image Transcriptionclose

The manager of a computer software company wishes to study the number of hours per week senior executives by type of industry spend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the 0.05 significance level, can she conclude there is a difference in the mean number of hours spent per week by industry? TT Banking Retail Insurance 12 8 10 10 10 6 6 Rectangular Snip 12 8 8 10 16 10 Click here for the Excel Data File 1. State the null hypothesis. но р1 u3 H1 Treatment means all the same

fullscreen
2. What is the decision rule? (Round your answer to 2 decimal places.)
F 0.05>
Rectangular Snip
3. Complete the ANOVA table. (Round your SS, MS, and Fvalues to 2 decimal places.)
Analysis of Variance
Source
Treatments
Error
SS
df
MS
F
4. State your decision regarding the null hypothesis.
Decision:
Но
help_outline

Image Transcriptionclose

2. What is the decision rule? (Round your answer to 2 decimal places.) F 0.05> Rectangular Snip 3. Complete the ANOVA table. (Round your SS, MS, and Fvalues to 2 decimal places.) Analysis of Variance Source Treatments Error SS df MS F 4. State your decision regarding the null hypothesis. Decision: Но

fullscreen
check_circleAnswer
Step 1

1.

The null and alternative hypotheses can be written as follows.

H 3
H Not all the treatments are same
help_outline

Image Transcriptionclose

H 3 H Not all the treatments are same

fullscreen
Step 2

Decision rule:

If the F­-statistic value is greater than F-critical value, then reject the null hypothesis. Otherwise do not reject the null hypothesis.

3.

The comparison of three means (ANOVA) is conducted by using EXCEL. The software procedure is given below:

  • Enter the data as Banking in column A, Retail in column B, and Insurance in column C.
  • Select Data > Data analysis > Anova: Single factor > OK...
Anova: Single Factor
SUMMARY
Groups
banking
Retail
Insurance
Count
Sum
Average
Variance
5
54
10.8
1.2
8
5
40
2
5
42
8.4
2.8
ANOVA
Source of Variation
Between Groups
|Within Groups
df
P-value
SS
MS
22.93333333
2 11.46666667 5.733333333 0.017880475 3.885293835
24
12
2
Total
46.93333333
14
N00
nun
help_outline

Image Transcriptionclose

Anova: Single Factor SUMMARY Groups banking Retail Insurance Count Sum Average Variance 5 54 10.8 1.2 8 5 40 2 5 42 8.4 2.8 ANOVA Source of Variation Between Groups |Within Groups df P-value SS MS 22.93333333 2 11.46666667 5.733333333 0.017880475 3.885293835 24 12 2 Total 46.93333333 14 N00 nun

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Our solutions are written by experts, many with advanced degrees, and available 24/7

See Solution
Tagged in

Math

Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: How to calculate true positive, false positive, true negative and false negative from a 2*2 table? C...

A: Click to see the answer

question_answer

Q: Each box of a certain brand of breakfast cereal contains a small charm, with k distinct charms formi...

A: Let Aj be the event with jth charm found in N boxesNow we need

question_answer

Q: The question is in the image

A:  1.Independent Events:Two events are said to be independent if occurrence of one event does not affe...

question_answer

Q: Q2: Random VariablesThe number of thousands of miles, X, a car can be driven before it breaks down i...

A: Consider X a is random variable defined as a car which can be driven the number of thousands of mile...

question_answer

Q: Example. both SAT and ACT scores' distributions are mound shaped SAT: Mean 1000, Std. Dev. of 200 Me...

A: The score would need on the SAT to get a scholarship is obtained as follows:

question_answer

Q: Image is attached regarding Question

A: Given Data2 independent variables and 65 observationsSSR = 12370.8 , SST =35963, Sb1=0.33, Sb2=0.20S...

question_answer

Q: Find the width, make a frequency table, draw a histogram, draw a relative frequency histogram, categ...

A: Begin  by populating data into excel sheet and then sorting from smallest to largest.

question_answer

Q: samples of n=16 scores are selected from a population. If the distribution of sample means has an ex...

A: Let a particular characteristic of a population be of interest in a study. Denote µ as the populatio...

question_answer

Q: If the correlation between two variables is close to 0, you can conclude that a scatterplot would sh...

A: Correlation tell us association between two variables. Correlation coefficient ranges from -1 to 1.I...

Sorry about that. What wasn’t helpful?