Of 16 (0 complete) HW Score: 0%, 0 of 156 pts
e Tests
. Your lov 8.2.4
Question Help
sing the
e and fee
In a certain survey, 515 people chose to respond to this question: "Should passwords be replaced with biometric security
(fingerprints, etc)?" Among the respondents, 51% said "yes" We want to test the claim that more than half of the population believes
that passwords should be replaced with biometric security. Complete parts (a) through (d) below.
a. Are any of the three requirements violated? Can a test about a population proportion using the normal approximation method be
used?
O A. One of the conditions for a binomial distribution are not satisfied, so a test about a population proportion using the normal
approximating method cannot be used.
OB. All of the conditions for testing a claim about a population proportion using the normal apumpximation method are satisfied,
so the method can be used.
O C. The conditions np 25 and nq 25 are not satisfied, so a test about a population proportion using the normal approximation
method cannot be used.
OD. The sample observations are not a random sample, so a test about a population proportion using the normal approximating
method cannot be used