# Question

Census data for a certain county shows that 19% of the adult residents are Hispanic. Suppose 72 people are called for jury duty, and only 9 of them are Hispanic. Does this apparent underrepresentation of Hispanics call into question the fairness of the jury selection system? Explain.

## Answer to relevant Questions

A national real estate magazine advertised that 15% of first-time home buyers had a family income below $40,000. A national real estate firm believes this percentage is too low and samples 100 of its records. The firm finds ...Gallup reported in March 2012 that 73% of American investors say that a politically divided federal government is hurting the U.S. investment climate “a lot.” Is there any evidence that the percentage has changed ...For each of the following, write out null and the alternative hypotheses, being sure to indicate whether the alternative is one-sided or two-sided. a) Consumer Repons discovered that 20% of a certain computer model had ...The owner of the store from Exercise wants to know if the mean age of all customers is 25 years old. a) What is the null hypothesis? b) Is the alternative one- or two-sided? c) What is the value of the test statistic? d) ...A confidence interval for the price of gasoline from a random sample of 30 gas stations in a region gives the following statistics: y = + 4.49 s = + 0.29 a) Find a 95% confidence interval for the mean price of regular ...Post your question

0