# Question

According to a study done by Wakeﬁeld Research, the proportion of Americans who can order a meal in a foreign language is 0.47.

(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?

(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?

## Answer to relevant Questions

According to a study done by the Gallup organization, the proportion of Americans who are satisﬁed with the way things are going in their lives is 0.82. (b) In the sample obtained in part (a), what is the probability the ...A shipment of 50,000 transistors arrives at a manufacturing plant. The quality control engineer at the plant obtains a random sample of 500 resistors and will reject the entire shipment if 10 or more of the resistors are ...State the properties of Student’s t-distribution. In a random sample of 678 adult males 20 to 34 years of age, it was determined that 58 of them have hypertension (high blood pressure). (a) Obtain a point estimate for the proportion of adult males 20 to 34 years of age who ...Determine the point estimate of the population proportion, the margin of error for each conﬁdence interval, and the number of individuals in the sample with the speciﬁed characteristic, x, for the sample size ...Post your question

0