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

Lpp, A paper mill produces two grades of paper viz., X and Y. Because of ra...

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

Definition, Definition of statistics according to Prof. Ya lu chan

Definition of statistics according to Prof. Ya lu chan

Short-term credit decision, Short-Term Credit Decision In no more than...

Short-Term Credit Decision In no more than one typed page, provide a statement of your decision to lend or not lend to this company based on your interpretation of the company

Assignment, An experiment succeeds twice as often as it fails. Find the cha...

An experiment succeeds twice as often as it fails. Find the chance that in the next six trials there will be at least four successes

Projectile, a ball is projected so as to attain a maximum range. Find the m...

a ball is projected so as to attain a maximum range. Find the maximum height attained if initial velocity is u

#mean, when is mode illdefined

when is mode illdefined

Test statistic and the p-value, An experimental surgical procedure is being...

An experimental surgical procedure is being studied as an alternative to the old method. Both methods are considered safe, but the new method has the potential to reduce operating

Two hanging masses, Two blocks with masses and hang one under the other. ...

Two blocks with masses and hang one under the other. For this problem, take the positive direction to be upward, and use for the magnitude of the acceleration due to gravity. Fi

Clearance pattern, Clearance pattern The proportion of the entire amount d...

Clearance pattern The proportion of the entire amount disbursed that is debited alongside the state''s bank account every day after the disbursements,

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