Questions from Business Statistics

Q: Joan’s Nursery specializes in custom-designed landscaping for residential areas.

Joan’s Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of...

Q: Consider the following hypothesis test: H0: p = .

Consider the following hypothesis test: H0: p = .20 Ha: p ≠ .20 A sample of 400 provided a sample proportion p = .175. a. Compute the value of the test statistic. b. What is the p-value? c. At α = .05...

Q: Consider the following hypothesis test: H0: p ≥ .

Consider the following hypothesis test: H0: p ≥ .75 Ha: p < .75 A sample of 300 items was selected. Compute the p-value and state your conclusion for each of the following sample results. Use α = .05....

Q: The U.S. Bureau of Labor Statistics reports that 11

The U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belonged to unions in 2013. Suppose a sample of 400 U.S. workers is collected in 2018 to determine whether union efforts to organ...

Q: A study by Consumer Reports showed that 64% of supermarket shoppers

A study by Consumer Reports showed that 64% of supermarket shoppers believe supermarket brands to be as good as national name brands. To investigate whether this result applies to its own product, the...

Q: What percentage of the population live in their state of birth?

What percentage of the population live in their state of birth? According to the U.S. Census Bureau’s 2014 American Community Survey, the figure ranges from 25% in Nevada to 78.7% in Louisiana. The av...

Q: Last year, 46% of business owners gave a holiday gift

Last year, 46% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 35% plan to provide a holiday gift to their employees. Suppose...

Q: In 2018, RAND Corporation researchers found that 71% of all

In 2018, RAND Corporation researchers found that 71% of all individuals ages 66 to 69 are adequately prepared financially for retirement. Many financial planners have expressed concern that a smaller...

Q: According to the University of Nevada Center for Logistics Management, 6

According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets returned. A Houston department store sampled 80 items sold in January and fo...

Q: Eagle Outfitters is a chain of stores specializing in outdoor apparel and

Eagle Outfitters is a chain of stores specializing in outdoor apparel and camping gear. They are considering a promotion that involves mailing discount coupons to all their credit card customers. This...