Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). 2.4 Ho - Select your answer - 2 Ha - Select your answer b. Compute the sample mean. (to 2 decimals) t 2 2.8 (to 3 decimals) p-value Select your answer - 2.2 2.7 c. Compute the sample standard deviation. (to 4 decimals) d. Find the test statistic and p-value. (Use Table 2 in Appendix B.) 1.7 With a 0.05 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. 1.5 1.6 2.4 2.6 3.1 e. What is your conclusion? We - Select your answer - reject the null hypothesis. There Select your answer. enough evidence to prove that the mean tree-planting time differs from 2 hours.
Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). 2.4 Ho - Select your answer - 2 Ha - Select your answer b. Compute the sample mean. (to 2 decimals) t 2 2.8 (to 3 decimals) p-value Select your answer - 2.2 2.7 c. Compute the sample standard deviation. (to 4 decimals) d. Find the test statistic and p-value. (Use Table 2 in Appendix B.) 1.7 With a 0.05 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. 1.5 1.6 2.4 2.6 3.1 e. What is your conclusion? We - Select your answer - reject the null hypothesis. There Select your answer. enough evidence to prove that the mean tree-planting time differs from 2 hours.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 11PPS
Related questions
Question
Transcribed Image Text:Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a
particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project.
For cost estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times
from a sample of 10 plantings during the past month follow (times in hours).
2.4
t
(to 3 decimals)
2.8
Select your answer -
2.2
Ho : μ
Select your answer - 2
Ha - Select your answer - ✪ 2
b. Compute the sample mean.
(to 2 decimals)
c. Compute the sample standard deviation.
(to 4 decimals)
d. Find the test statistic and p-value. (Use Table 2 in Appendix B.)
✪
2.7
1.7
1.5
With a 0.05 level of significance, test to see whether the mean tree-planting time differs from two hours.
a. State the null and alternative hypotheses.
1.6
2.4
2.6
3.1
p-value
e. What is your conclusion?
We - Select your answer-reject the null hypothesis. There Select your answer - enough evidence to prove that the mean
tree-planting time differs from 2 hours.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 1 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Functions and Change: A Modeling Approach to Coll…
Algebra
ISBN:
9781337111348
Author:
Bruce Crauder, Benny Evans, Alan Noell
Publisher:
Cengage Learning
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt