Please answer question a,b,c

label Mathematics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Apr 24th, 2015

a). p = 80/400 = 0.2.    confidence interval = 0.2 + or - z crit.  sq rt (p x (1-p) )/400

                                                                   = 0.2 plug or minus 0.0392

                                                                   = 0.16 to 0.239

b)  Confidence interval indicates that the probability of true mean lying within this interval is 95%

c) sample size = (1.96) ^2 (0.5) (0.5)/ (0.01)^2 = 960.5

                       Select next size so n= 961

          Sample size n= 961

Apr 24th, 2015

Hi Niru B, thank you so much for you kindly help. Do you have time to help me figure out another question

u5c4fu5e55u5febu7167 2015-04-24 u4e0au53489.40.29.png

Apr 24th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Apr 24th, 2015
...
Apr 24th, 2015
Jun 25th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer