Statistics question number 1

label Statistics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Apr 20th, 2015

d1 =d2 == 66.3 - 55.4 = 10.9

Var (d1 -d2) = Var (d1) + var (d2) = 7,87^2 + 18.51^2 = 404.57 

SD= 20.11

Critical value of z= 2.576

Hence confidence interval is  (10.9 - 20.11*2.576,  10.9 + 20.11 *2.576)

(10.9 -51.8, 10.9 +51.8) = (-40.9, 62.7)

Apr 20th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Apr 20th, 2015
...
Apr 20th, 2015
Oct 23rd, 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