Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

fWhat is the conclusion? 0 We do not have sufficient evidence to suggest that the average weight of polar bears has significantly increased for the

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
\fWhat is the conclusion? 0 We do not have sufficient evidence to suggest that the average weight of polar bears has significantly increased for the new sample when compared to the former study. 0 We do not have sufficient evidence to suggest that the average weight of polar bears is significantly less for the new sample when compared to the former study. 0 We have sufficient evidence to show a significant difference in the average weight of polar bears between the new sample and the former study. 0 We have sufficient evidence to suggest that the average weight of polar bears is significantly less for the new sample when compared to the former study. 0 We have sufficient evidence to suggest that the average weight of polar bears has significantly increased for the new sample when compared to the former study. Previous Page Next Page Damn 1 nf Q Question 4 (2 points) As a polar bear researcher, you are concerned about the effects of climate change and global warming may be having on polar bears in a particular area of the Artic Circle. Due to a reduction in habitat and an increase in food scarcity, you believe the average weight may be decreasing (Source: https://www.nworg/EducationalResources/Wildlife- Guide/MammaIs/Polar-Bear). Suppose a former study (F) from 20 years ago found the average adult male weight to be 1100 pounds with a standard deviation 125 pounds for a random sample size of 50 bears. A new random sample (N) of 40 adult male polar bears find the average to be 1025 pounds with a standard deviation of 130 pounds. Conduct a test of significance for or = 0.05. What is the conclusion? Question 5 (2 points) Suppose you are interested in knowing if the amount of dissolved oxygen levels (DO) in lakes from rural areas is significantly greater than those from the urban areas. For your experiment, you measured the DO levels in randomly sampled lakes in two different area types (urban and rural) at the same time of year. Conduct a hypothesis test at 5% level of significance with hypotheses Ho: MRural-MUrban S O and HA: MRural"MUrban > O. Use the table below. (Sources:https://www.canr.msu.eduews/understanding_the_role_of_oxygen_in_our_lakes_and_ponds; https://www.usgs.gov/special-topic/water-science-school/science/dissolved-oxygen-and-water?qt- science_center_objects=0#qt-science_center_objects) Sample Size of Lakes Mean DO Levels Standard Deviation Rural 15 9.5 1.14 Urban 13 8.8 0.75 What is the test statistic

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

Complex Geometry And Dynamics The Abel Symposium 2013

Authors: John Erik Fornaess, Marius Irgens, Erlend Fornaess Wold

1st Edition

3319203371, 9783319203379

More Books

Students also viewed these Mathematics questions

Question

Define self-image. (p. 24)

Answered: 1 week ago