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STA301 Statistics and Probability

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STA301 Statistics and Probability

STA301 Statistics and Probability.Download/upload Video Lectures, Handouts, Helping Materials, Assignments Solution, Online Quizzes, GDB, Past Papers, Solved Papers and more….

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STA301 GDB No 2 Spring 2020 Solution & Discussion

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STA301 GDB Fall 2019 Solution & Discussion

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Comment by sidra on May 30, 2015 at 9:20pm
i like this group.
Comment by sidra on May 30, 2015 at 9:20pm
i like this group.
Comment by ABDUR-RAHEEM on May 29, 2015 at 8:44am

Comment by Malik Ali Hassan on December 2, 2014 at 8:21am

assalamo  alkuim sta301 ki assignment  ka solution send kr den??

Comment by Malik Zain on November 20, 2014 at 9:02pm
Is k quiz solve kye hyn yr kisi ny?
Comment by amina on November 19, 2014 at 12:23am

PLZ help

Comment by amina on November 19, 2014 at 12:23am

Assignment No.1 (Course STA 406)

 Fall 2014 (Total Marks15)

 

  • The assignment is being uploaded to build up the concepts about the point estimation and confidence interval.

                                                                                                                                                                                                                                             

 

Question 1:                                                                                                                                           (Marks: 2+5=7)

  1. a.      Let U and V are two unbiased estimators of λ and Variance (U) ≤ Variance (V), then which estimator is more efficient and why?

 

  1. b.      A mobile company XYZ wants to conduct a survey to find the proportion P of those customers that are happy with the purchase of their new mobile phone. The company took a random sample of 1000 customers who recently purchased the new mobile phone. They found that among those, 400 customers were happy with their purchase. Find the 95% Confidence Interval for P?

 

 

 

 

 Question 2:                                                                      

  1. a.      An independent random sample of 50 and 70 animals from two farms show the average animal weight to be 50 kg and 40 kg with standard deviation of 2.5 kg and 1.5 kg respectively. Assuming normality, construct a 95% confidence interval for the expected difference in the weights.

 

 

  1. b.      The standard deviation of the lifetime of certain TV picture tubes is estimated as 150 hours. How much large a sample must be taken in order to be 99% confident that the error in the estimated means lifetime will not exceed 25 hours.

 

 

-End-

Comment by +paradise's wind on October 21, 2014 at 10:57am

Comment by + βιит-є-Aȿɨƒ on October 2, 2014 at 10:09am

Nice group

Comment by +★ HAMMAD ★ on August 24, 2014 at 5:56am
Keep it up
 

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