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

Pivot table, The Pivot table is as below: Values ...

The Pivot table is as below: Values Row Labels Sum of ID Sum of Risk Level A 69

Index, where i found an assignment about index?

where i found an assignment about index?

Classification of raw data with example tables, Classification of raw data ...

Classification of raw data on the basis of homogeneous characteristics

Linearity, The weight in Kg for each person was matched to their intake of ...

The weight in Kg for each person was matched to their intake of fat per day in Grams.  9 people were selected with the following results. Weight (Xi)         Fat (Yi) 45

Price level change, how effect changes in prices to a financial statement?

how effect changes in prices to a financial statement?

Accounting standards in united states, United States: There are currently ...

United States: There are currently more than 10000 companies that are registered with the SEC (Securities Exchange Commission). Of these, around 1000 are non US companies. The non

What is prime cost, What is prime cost? Primary price is the combin...

What is prime cost? Primary price is the combination of a manufactured item's expenditures of immediate materials and immediate labor. In other words, prime price represent

Shamim, the monthly income( in tk''s)persons workingin afarmis as flows ,14...

the monthly income( in tk''s)persons workingin afarmis as flows ,14870,14930,15020,14460,14750,14920,15720,15160,14680,14890 find average monthly income?

Balance sheet-actual reserves , (a)   The bank's excess reserves are its ac...

(a)   The bank's excess reserves are its actual reserves less required reserves. Actual reserves are given as $450 from its balance sheet. Required reserves are given by the produc

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