Sing test- hypothesis testing, Operation Research

Assignment Help:

SING TEST

The sign test  is the simplest  of the  parametric  tests. Its name comes  from the  fact  that it is based  on the direction ( or sings  for  pluses or minuses ) of  a part of observation and  not on  their numerical  magnitude.

In any problem  in which sign  test is used we count:

Number of + sings

Number of  - sings

Number of 0 s  ( i, e, which  cannot be included either as positive or negative)

We take  H0  p= 0.5( Null hypothesis)

If the difference is due  to chance effects the   probability of a +sing for any particular pair is 1/2as is the probability of a  -sing. If s  is the number of times  the less  frequent sign  occurs then S has  the  binomial distribution with p= ½.

The  critical value for a two  sided alternative at α= 0.05 can be  conveniently found  by the  expression.

K = (n -1)/ 2 -( 0.98)√n

Ho is rejected if S ≤ K for  the sign  tests.

The sign  test can be  of two  types:

a.The one  sample  sign test

b.  The paired sample sign test

 


Related Discussions:- Sing test- hypothesis testing

Li, line drawn as Y=C+1075x, when x was 2, and y was 239, given that y inte...

line drawn as Y=C+1075x, when x was 2, and y was 239, given that y intercept was 11. calculate the residualon..

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

. 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

LPP using Simple method, Maximize Z= 3x1 + 2X2 Subject to the constraints: ...

Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0

Explain decision making process, Explain Decision Making Process. Deci...

Explain Decision Making Process. Decision Making Process: A good decision can only be prepared as a result of a rational decision making process. The different stages of the

What is the temperature of water leaving the chillier, A water chillier wit...

A water chillier with a capacity of 30 TR cools 20 m 3 /hr. water entering at 12 o C what is the temp. of water leaving the chillier. A reversible engine has an ideal thermal ef

Other determinants of sample size- sampling decisions, Other  Determinants ...

Other  Determinants  of Sample Size 1. The variability  of elements  within the population  has become  a  very  important  factor  to decide the  sample  size.    The more  v

Linear programming, Ask question #Minimum 100 words acceptNas food produces...

Ask question #Minimum 100 words acceptNas food produces to kinds of popular dark chocolate bars. the banana and coffee. the banana bar costs 0.22 to make and sells of 0.35, where a

International trade, why does south africa regulate int''l trade

why does south africa regulate int''l trade

Least cost method of transportation model, how do you calculate using this ...

how do you calculate using this method where the least cost appears twice

Inventory control of any company, give real data & find out the inventory &...

give real data & find out the inventory & give suggestions

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