Binomial Probability
Q1).it is believed that 1 in every
10 cases are observed with diarrhoeal disease. To verify the claim, a sample of
10 persons is collected. A test is carried out at alpha=0.05.
a).state the underlying
distribution of the problem.
b). find the probability that at
least 7 persons carry the disease.
c). A test is conducted at
alpha=0.05. suppose the null hypothesis is rejected if the result in b) is
smaller than 0.05. what is the conclusion?
Q2). how to work out p-value?
if; t-test= -4.769, with df=7
therefore t7(0.95)= 1.895, since alpha is=0.05. Ho (null hypothesis) is rejected
in t-test since -4.769 falls into the critical (rejection) region. where ( Ho:
m=mo & H1: m not= mo)
is that; p-value=
2*P(T>=-4.769|T~t7)=1.998>0.05????
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