An institute reported that 62?% of its members indicate that lack of ethical culture within financial firms has contributed most
to the lack of trust in the financial industry. Suppose that you select a sample of 100 institute members. Complete parts ?(a) through ?(d) below.a) What is the probability that the sample percentage indicating that lack of ethical culture within financial firms has contributed the most to the lack of trust in the financial industry will be between 62% and 67%b. The probability is 80?% that the sample percentage will be contained within what symmetrical limits of the population? percentage?
The probability is 80?% that the sample percentage will be contained above ___?% and below ___?%.
c. The probability is 91?% that the sample percentage will be contained within what symmetrical limits of the population? percentage?
The probability is 91?% that the sample percentage will be contained above _____% and below _____?%.
d. Suppose you selected a sample of 400 institute members. How does this change your answers in ?(a) through
?(c)??
The probability is 80?% that the sample percentage will be contained above ___?% and below ___?%.
c. The probability is 91?% that the sample percentage will be contained within what symmetrical limits of the population? percentage?
The probability is 91?% that the sample percentage will be contained above _____% and below _____?%.
d. Suppose you selected a sample of 400 institute members. How does this change your answers in ?(a) through
?(c)??
1 answer:
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Answer:
37/3
Step-by-step explanation:
Combine like terms-- you can combine the k's:
Now you have:
Simply divide both sides by 2.5 to find the value of k:
Now you have:
Simply divide both sides by 2.5 to find the value of k: