# Question

In a recent poll, the Gallup Organization found that 45% of adult Americans believe that the overall state of moral values in the United States is poor.

(a) Compute the mean and standard deviation of the random variable X, the number of adults who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans.

(b) Interpret the mean.

(c) Would it be unusual to identify 240 adult Americans who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans? Why?

(a) Compute the mean and standard deviation of the random variable X, the number of adults who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans.

(b) Interpret the mean.

(c) Would it be unusual to identify 240 adult Americans who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans? Why?

## Answer to relevant Questions

Clarinex-D is a medication whose purpose is to reduce the symptoms associated with a variety of allergies. In clinical trials of Clarinex-D, 5% of the patients in the study experienced insomnia as a side effect. (a) If 240 ...The following excerpt is from the Racial Proﬁling Data Collection Resource Center (www.racialproﬁlinganalysis.neu.edu/). In 2006, the New York City Police Department stopped a half-million pedestrians for suspected ...Use the ﬁgure to answer the questions that follow. (a) What is µ? (b) What is σ? (c) Suppose that the area under the normal curve to the right of x = 75 is 0.0668. Provide two interpretations for this area. (d) Suppose ...Draw the normal curve with the parameters indicated. Then ﬁnd the probability of the random variable X. Shade the area that represents the probability. µ = 70, σ = 10, P(65 < X < 85) Use the ﬁgure to answer the questions that follow: (a) What is µ? (b) What is σ? (c) Suppose that the area under the normal curve to the left of x = 10 is 0.9332. Provide two interpretations for this area. (d) Suppose ...Post your question

0