MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12
        An I.Q test was administered to 5 persons before and after they were trained. The

results are given below :
I II III IV V
I.Q before training 110 120 123 132 125
I.Q after training 120 118 125 136 121
Test whether there is any change in I.Q. after the training programme
(Given t0.01(4) = 4.6)
7 years ago

Answers : (1)

SHAIK AASIF AHAMED
askIITians Faculty
74 Points
							Hello student,
Please find the answer to your question below
The results are given below : I II III IV V I.Q before training 110 120 123 132 125
I.Q after training 120 118 125 136 121
deviation in each case is 10 -2 2 4 -4
sum of d=10
d2=100+4+4+16+16=140
d=sum of d/n=10/2=5 and s=sqrt((d2-nd)/n-1)=sqrt(140-5(4))/5-1=5.673
Hence there is no change of IQ after training since givent0.01(4) = 4.6
4 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 1,590 off

COUPON CODE: SELF10


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 233 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details