What is 6.8 times 10 to the power of -3 in standard notation?
1 answer:
You might be interested in
Answer with explanation:
The 90% confidence interval (51%, 61%) for proportion means that the proportion of getting heads lie in it.
Given : Total number of times coin is tossed = 250
Number of times they got head =140
The probability of getting a head = 0.56
The confidence interval for proportion is given by :-
Given significance level :
Critical value :
Now, the 90% confidence interval for proportion will be :-
Hence, the given confidence interval is correct.