change in the performance of the lamps between the dates, Basic Statistics

Assignment Help:
Q.2. (ii) A company making lamps has drawn a sample from its production line and measured the light output from each. The results, in microamps, are as follows:

9.1 9.8 9.5 10.4 10.7 10.2 9.8 10.0 10.3 10.1 9.6

At a later date second sample is drawn and tested, with the following results:

9.4 9.3 9.8 10.3 9.9 10.5 10.7 10.4 9.7 10.6

(a) Is there any evidence of a change in the performance of the lamps between the dates?

(b) If there is a difference, calculate the 95% confidence limits for the difference.

(c) If not, calculate the 95% confidence limits for the

Related Discussions:- change in the performance of the lamps between the dates

Evaluate the probabilities, Problem: a. According to a Business week po...

Problem: a. According to a Business week poll of 1035 adults, 40% of those surveyed agreed strongly with the proposition that business has too much power over American life (B

S, What is samplings and its methods

What is samplings and its methods

Ruels, pzl give me ans

pzl give me ans

Budgetary control, Budgetary control The manage or management of a governm...

Budgetary control The manage or management of a governmental component in agreement with an approved budget for the purpose of keeping expenditures within the limits of available

Ransfer pricing, what are the different types of transfer pricing?

what are the different types of transfer pricing?

Explain the financial accounting., Explain the Financial Accounting. Und...

Explain the Financial Accounting. Under the Financial Accounting System the producing of economic purchase are done in the Cash and Publication, in other Bookkeeping as Sales, P

#titletime series, importance of time series in statistics

importance of time series in statistics

Financial statements, Write a report to an investor by comparing the financ...

Write a report to an investor by comparing the financial statements for two different companies

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd