Modules of probability and statistics, Basic Statistics

Assignment Help:

Question:

(a) Suppose that 100 tires made by Bridgestone last on average 21,819 miles with a standard deviation of 1,295 miles. Test the null hypothesis µ = 22, 000 miles against the alternative hypothesis µ < 22, 000 miles at the 5% level of con?dence.

(b) It is decided that H0 is rejected if the sample mean is less than 21,819. Using the same information in part (a) above, except for the 5% level of con?dence, calculate

(i) P(H0 is accepted | H1 is true with µ = 21, 500).
(ii) the power of the test.

(c) The results of 100 students who have taken part in examinations on Probability and Statistics during the past few years can be summarised as follows. Out of 42 males, 30 have passed and out of 58 females, only 34 have passed. Test at the 5% signi?cance level whether there is a relationship between gender and success in modules of Probability and Statistics.


Related Discussions:- Modules of probability and statistics

Find out the average and probability, Question 1:      (a)  The time it...

Question 1:      (a)  The time it takes to deliver a pizza after an order is placed is uniformly distributed between 20 and 50 minutes. What is the probability that a pizza wil

Closing Stock , How to calculate closing stock in Tally while we are postin...

How to calculate closing stock in Tally while we are posting with inventory.

Statistic using IBM SPSS, Comment on the sample size, measure of central te...

Comment on the sample size, measure of central tendency, dispersion, kurtosis, and skewness.Use the z -scores in the book (or calculate your own) to provide this response. What doe

Time series, time series use in indian economy

time series use in indian economy

Confidence interval, 1. Provide an overview of the scenario and the variabl...

1. Provide an overview of the scenario and the variable involved. Include an explanation of why and how constructing the confidence interval adds value. I.e., why might this inform

Aritmetic mean, merits and demerits of arithmetic mean

merits and demerits of arithmetic mean

Time quantization and amplitude quantization, A sine wave is sampled at int...

A sine wave is sampled at interval Tand quantixed using N=2bits precision over the range ±1. The sine wave has peroid τ, and T is chosed such that T = 1/8τ Plot one cycle of the

International financial reporting standards-ifrs, IFRS: IFRS (Internationa...

IFRS: IFRS (International Financial Reporting Standards) is a set of accounting standards that were developed as global standard. The IFRS was developed by IASB (International Acc

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