Answered step by step
Verified Expert Solution
Link Copied!

Question

00
1 Approved Answer

GreenBeam Limited claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs shows a mean of

image text in transcribed
image text in transcribed
GreenBeam Limited claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs shows a mean of 3.59 mg of mercury. The population distribution is normal. (a) State the hypotheses for a right-tailed test, using GreenBeam's claim as the null hypothesis about the mean. a. Ho: U 2 3.5 mg vs. Hj: p 3.5 mg C. Ho: U = 3.5 mg vs. H1: W # 3.5 mg O a Ob Oc (b) Assuming a known standard deviation of 0.18 mg, calculate the z test statistic to test the manufacturer's claim. (Round your answer to 2 decimal places.) Test statistic (c) At the 1 percent level of significance (@ = .01) does the sample exceed the manufacturer's claim? O Yes O No (d) Find the p-value. (Round your answer to 4 decimal places.) p-value

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered 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

Income Tax Fundamentals 2013

Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill

31st Edition

1111972516, 978-1285586618, 1285586611, 978-1285613109, 978-1111972516

Students also viewed these Mathematics questions