Statistics question, Basic Statistics

Assignment Help:
1. A sample from 16 different farms across Quebec shows that the hay production in bales per acre is normally distributed N(100,50).
a. (2p )What is the probability that a random farm from this sample produces less than 80 bales/acre?



b. (2p) What is the probability that another random sample of nine farms has an average of less than 80 bales/acre?



c. (1p) Is the population mean known?



d. (2p) What can we learn from the central limit theorem in this case?



e. (3p) Calculate a 90 % confidence interval around the population mean.




f. (2p) Interpret: what does your answer in e) mean?


g. (2p) These nine farms were actually a pilot study. What is the minimal sample size needed to compute a 95 % confidence interval around the population mean?



Related Discussions:- Statistics question

Surveys by mailing of questionnaires, The researcher and the respondents d...

The researcher and the respondents do not come in contact with each other if this method of survey is adopted Questionnaires are mailed to the respondents with a request to re

Methods of members, the A- frame is supported by a hinge at A and A roller ...

the A- frame is supported by a hinge at A and A roller at e

Sale of an asset on account of depreciation, Write a short note on Sale of ...

Write a short note on Sale of An Asset on account of Depreciation. Ans. An asset can be sold anytime before or after its useful life estimated time, in case the asset is sold more

Cost accounting , is direct costing variable, relevant or prime costing

is direct costing variable, relevant or prime costing

Cost, I am struggling in my cost accounting class and I need help

I am struggling in my cost accounting class and I need help

Hom, (A) Find the binomial probability P(x = 5), where n = 15 and p = 0.50....

(A) Find the binomial probability P(x = 5), where n = 15 and p = 0.50. (B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation. (C) H

Esk jewellery, You are working for the management of ESK Jewellery as a mar...

You are working for the management of ESK Jewellery as a marketing consultant. The main business of ESK Jewellery is the retailing of diamond jewellery. They opened their first sho

Simple Linear Regression, One measure of the risk or volatility of an indiv...

One measure of the risk or volatility of an individual stock is the standard deviation of the total return (capital appreciation plus dividends) over several periods of time. Altho

Source of economic growth and development, Question 1: (a) Describe the...

Question 1: (a) Describe the factors that contributed to the adoption of structural adjustment programme by a majority of Least Developed Countries in the 1980s? (b) Describ

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