Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Section 4 Measurements (in cm) of diameter at breast height (dbh) were taken of 15 trees in a Douglas-fir stand: 17.2 18.9 16.2 25.8 24.5

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
Section 4 Measurements (in cm) of diameter at breast height (dbh) were taken of 15 trees in a Douglas-fir stand: 17.2 18.9 16.2 25.8 24.5 25.1 27.8 29.2 16.1 18.4 25.7 23.2 30.1 17.2 27.9 Answer the following questions (Part 1 to Part 15) using this description.Part 1 To find the 90% confidence interval for the mean of all tree diameters in this stand, which probability distribution should be used? O Chi-squared distribution O F distribution O Z distribution O t distribution Question 14 1 pts Part 2 What is the standard error of the mean of all tree diameters in this stand?Part 3 To calculate the 90% confidence interval for the mean of all tree diameters of this stand, what tabulated value should be used? For example, for finding a 95% CI for the Z distribution, 1.96 should be used (see figure 6.1 in Lesson 6 and Table A.4 in the textbook). For finding a 95% CI for the t distribution with 10 df, we use 2.23 (see Table A.5 in the Appendix in the textbook). These are not the answer, but are meant to give you an example of what this tabulated value looks like. Hint: Use two decimals, and enter the exact value you find in the appropriate table in the textbook Appendix. Enter the value exactly as it is written. Question 16 0.5 pts Part 4 Find the 90% confidence interval for the mean of all tree diameters in this stand. What is the lower limit?Part 5 Find the 90% confidence interval for the mean of all tree diameters of this stand. What is the upper limit? Question 18 1 pts Part 6 To calculate the 95% confidence interval for the mean of all tree diameters in this stand, what tabulated value should be used? For example, to find a 95% CI for the Z distribution, 1.96 should be used (see figure 6.1 in Lesson 6 and Table A.4 in the textbook). To find a 95% CI for the t distribution with 10 df, 2.23 is used (see Table A.5 in the textbook). These are not the answer, but are meant to give you an example of what this tabulated value looks like. Hint: Use two decimals, and enter the exact value you find in the appropriate table in the Appendix. Enter the value exactly as it is written.Part 7 Find the 95% confidence interval for the mean of all tree diameters of this stand. What is the lower limit

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Trigonometry A Unit Circle Approach

Authors: Michael Sullivan

10th Edition

0321999347, 9780321999344

More Books

Students also viewed these Mathematics questions

Question

What is RFID, and how does it impact SCM?

Answered: 1 week ago

Question

What are six factors that influence perceptions?

Answered: 1 week ago

Question

1. Avoid conflicts in the relationship

Answered: 1 week ago

Question

1. What will happen in the future

Answered: 1 week ago