Answer:
Step-by-step explanation:
n/3 - 6 = 18
n/3 = 24
n = 72
Answer:
The standard deviation of the number of people that test positive for the HIV virus =
σ =1.427
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given the probability that test positive for the HIV virus 'p' = 3% =0.03
Given random samples 'n' = 70
by using binomial distribution
<em>The mean of the samples test positive for the HIV virus </em>
<em> μ = n p = 70 X 0.03 = 2.1</em>
<em>The standard deviation of the number of people that test positive for the HIV virus</em>
<em> σ = </em><em></em>
σ = √70 ×0.03×0.97 =√2.037 = 1.427
<u><em>Conclusion</em></u>:-
The standard deviation of the number of people that test positive for the HIV virus = σ =1.427
$276 in 12 hours hopes this help 23x12=276
Answer:
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is
The number of approved loan is k = 410
Generally the sample proportion is mathematically represented as
substituting values
Given that the confidence level is 95% then the level of significance is mathematically represented as
Next we obtain the critical value of from the normal distribution table,the value is
Generally the margin of error is mathematically represented as
substituting values
The 95% confidence interval for p is mathematically represented as
substituting values