https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk Made with panache en-us 2020-08-10 02:30:26 UTC 2020-08-11 05:14:17 UTC hello@padlet.com lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785967 Once you are done typing your answer, type 'Done' after the answer.]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785967 lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785968 a) chi-sqaure test statistic (jw)
goodness of fit test!!!!!!

b) H0: The population follows the hypothesized distribution
H1: the population does not follow the hypothesized distribution (Ee Lin)

c) Degree of Freedom = Number of Category - 1 
= 3 -1 
= 2 (Zhe Ming)

d) Expected Frequency:
     Less than 18 = 0.2*500 = 100
     Age 18-40 = 0.3*500 = 150
     Above 40 = 0.5*500 = 250
     (Peerawat)
    

e) Expected Frequency for age less than 18: 500 * 20% = 100 
    Expected Frequency for age between 18 - 40: 500 * 30% = 150
   Expected Frequency for age above 40:
     500 * 0.50 = 250 
Test Statistic: (124 - 100)^2/100 + (263 - 150)^2/150 + (113-250)^2/250 
= 5.76 + 85.12666667 + 75.076
= 165.9626667
= 165.96267 (5 D.P.) (Zhe Ming)

 

]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785968 lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785969 a) Chi-sqaure goodness of fit (Cheh Wei)

b) Null hypothesis: The population distribution of ages follows the distribution of ages in the last 10 years. (Cheh Wei)

c)Degree of freedom=3-1
                                     =2(Pauline)

d) Test statistics = (124-100)^2/100 + (263-150)^2/150 + (113-250)^2/250 (Cheh Wei)

e)500x0.2=100
500x0.3=150
500x0.5=250(xx)

]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785969 lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785970 a) Chi-square goodness of fit test (Fiona)

b) h0: the population follows the hypothesized distribution (Darryl) 
h1: the population distribution does not follow the hypothesized distribution (Darryl) 


c) df = 3 -1 =2 (Baron)

d) expected frequencies for less than 18: 0.20*500 = 100
for 18 - 40: 0.30*500 = 150
for above 40: 0.50*500 = 250 
(Fiona)
e) (124-100)^2/100 + (263-150)^2/150 + (113-250)^2/250 = 165.96 (Baron)

]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785970 lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785971 a) Chi-Square Goodness-of-Fit test(Natasha)

b)H0: The population distribution of ages follows the distribution of ages in the last 10 years
H1: The population distribution of ages does not follows the distribution of ages in the last 10 years(Natasha)

c) degrees of freedom = 3-1 = 2 (ZiHao)

d) Expected frequency: 
124+263+113=500
0.2*500 = 100
0.3*500 = 150
0.5*500 = 250


e) test stat = ((124-100)^2)/100 + ((263-150)^2)/150 + ((113-250)^2)/250 = 165.9627 (Wee hrng)

]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785971 lim_siew_hoon7 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785972 a) Chi - Square Goodness-of-fit Test (Mirza)

Chi-Square Goodness of Fit test (Jane)

b)Ho: The population distribution of ages  follows the hypothesized distribution
H1: The population distribution of ages   does not follow the hypothesized distribution (Bryan)

c) degrees of freedom = 3 -1 = 2 (Ekka)

d) Expected frequency:
Less than 18 = 0.2 * 500 = 100 (Mirza)
18-40 = 0.3 * 500 = 150
> 40 = 0.5 * 500 = 250

e)

]]> 2020-08-10 02:30:26 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/673785972 19028119 https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/675086510 5
a) chi-square goodness of fit test]]> 2020-08-11 01:39:59 UTC https://padlet.com/lim_siew_hoon7/wbce0ls5af18ktgk/wish/675086510