Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Independent random samples from two regions in the same area gave the following chemical measurements (ppm). Assume the population distributions of the chemical are mound-shaped

image text in transcribed
Independent random samples from two regions in the same area gave the following chemical measurements (ppm). Assume the population distributions of the chemical are mound-shaped and symmetric for these two regions. Region I: X1; n1=12 981 726 686 496 657 627 815 504 950 605 570 520 Region II: x2; n2 =16 1024 830 526 502 539 373 888 685 868 1093 1132 792 1081 722 1092 844 Let u, = 678 be the population mean and 1= 164 be the population standard deviation for *1. Let U2 = 812 be the population mean and 2 = 239 be the population standard deviation for *2. Determine and examine the 90% confidence interval for H1 -H2. Does the interval consist of numbers that are all positive? all negative? or different signs? At the 90% level of confidence, is one region more interesting that the other from a geochemical perspective? The interval contains only negative numbers. We cannot say at the required confidence level that one region is more interesting than the other. The interval contains both positive and negative numbers. We can say at the required confidence level that one region is more interesting than the other. The interval contains both positive and negative numbers. We cannot say at the required confidence level that one region is more interesting than the other. The interval contains only positive numbers. We can say at the required confidence level that one region is more interesting than the other. The interval contains only positive numbers. We cannot say at the required confidence level that one region is more interesting than the other

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

Combinatorial Geometry In The Plane

Authors: Hugo Hadwiger, Hans Debrunner, Victor Klee

1st Edition

048679993X, 9780486799933

More Books

Students also viewed these Mathematics questions