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Sliva [168]
3 years ago
6

A Bernoulli random variable X has unknown success probability p. Using 100 independent samples of X, find a confidence interval

estimate of p with confidence coefficient 0.99. If ????????100 = 0.06, what is our interval estimate
Mathematics
1 answer:
Alex777 [14]3 years ago
5 0

Answer: (0.0445,\ 0.0755)

Step-by-step explanation:

The confidence interval for the population proportion is given by :-

p\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

Given : A Bernoulli random variable X has unknown success probability p.

Sample size : n=100

Unknown success probability : p=0.06

Significance level : \alpha=1-0.99=0.01

Critical value : z_{\alpha/2}=2.576

Now, the 99% confidence interval for true proportion will be :-

0.06\pm(2.576)\sqrt{\dfrac{0.06(0.06)}{100}}\\\\\approx0.06\pm(0.0155)\\\\=(0.06-0.0155,\ 0.06+0.0155)\\\\=(0.0445,\ 0.0755)

Hence, the 99% confidence interval for true proportion= (0.0445,\ 0.0755)

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