Foreign Language
Foreign Language According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.
(a) Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.
Describe the sampling distribution of pn, the proportion of Americans who can order a meal in a foreign language. Be sure to verify the model requirements.
(b) In the sample obtained in part (a), what is the probability the proportion of Americans who can order a meal in a foreign language is greater than 0.5?
(c) Would it be unusual that, in a survey of 200 Americans, 80 or fewer Americans can order a meal in a foreign language? Why?

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Foreign Language
Foreign Language According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.
(a) Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.
Describe the sampling distribution of pn, the proportion of Americans who can order a meal in a foreign language. Be sure to verify the model requirements.
(b) In the sample obtained in part (a), what is the probability the proportion of Americans who can order a meal in a foreign language is greater than 0.5?
(c) Would it be unusual that, in a survey of 200 Americans, 80 or fewer Americans can order a meal in a foreign language? Why?

Leave a Reply

Your email address will not be published. Required fields are marked *

Foreign Language
Foreign Language According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.
(a) Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.
Describe the sampling distribution of pn, the proportion of Americans who can order a meal in a foreign language. Be sure to verify the model requirements.
(b) In the sample obtained in part (a), what is the probability the proportion of Americans who can order a meal in a foreign language is greater than 0.5
(c) Would it be unusual that, in a survey of 200 Americans, 80 or fewer Americans can order a meal in a foreign language Why