# Question

Treat the data obtained in the Sullivan Statistics Survey as a simple random sample of adult Americans.One question asked in the survey was“In your opinion, what minimum annual income for an individual qualiﬁes an individual to be considered rich?”Retrieve the results of this question.

(a) Draw a histogram of the data. Is there anything unusual about the graph? Explain.

(b) Draw a boxplot of the data.Are there any outliers?

(c) Use statistical software to determine the point estimate of the mean income adult Americans consider rich.

(d) Use statistical software to construct a 95% conﬁdence interval for the mean income that qualiﬁes an individual to be considered rich.

(a) Draw a histogram of the data. Is there anything unusual about the graph? Explain.

(b) Draw a boxplot of the data.Are there any outliers?

(c) Use statistical software to determine the point estimate of the mean income adult Americans consider rich.

(d) Use statistical software to construct a 95% conﬁdence interval for the mean income that qualiﬁes an individual to be considered rich.

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