Questions from Business Statistics

Q: Although your product, a word game, has a list price

Although your product, a word game, has a list price of $12.95, each stories free to set the price as it wishes. You have just completed a quick survey, and the marked prices at a random sample of sto...

Q: Some frozen food dinners were randomly selected from this week’s production and

Some frozen food dinners were randomly selected from this week’s production and destroyed in order to measure their actual calorie content. The claimed calorie content is 200. Here are the calorie cou...

Q: Consider the dollar value (in thousands) of gifts returned to

Consider the dollar value (in thousands) of gifts returned to each of your department stores after the holiday season (Table 10.7.2): a. Compute the standard deviation. b. Interpret the standard devia...

Q: Regulations require that your factory provide convincing evidence that it discharges less

Regulations require that your factory provide convincing evidence that it discharges less than 25 milligrams of a certain pollutant each week, on average, over the long run. A recent sample shows week...

Q: A manufacturing process is considered to be “in control” if

A manufacturing process is considered to be “in control” if the long run mean weight of components produced is 0.20 kilograms, even though individual components may vary from this mean. Here are weigh...

Q: A recent poll of 1,423 randomly sampled likely voters shows

A recent poll of 1,423 randomly sampled likely voters shows your favorite candidate ahead, with 51.93% in favor. There are two candidates. Use hypothesis testing to infer to the larger group of all li...

Q: Part of the assembly line will need adjusting if the consistency of

Part of the assembly line will need adjusting if the consistency of the injected plastic becomes either too viscous or not viscous enough as compared with a value (56.00) your engineers consider reaso...

Q: Managers perceived employee stock ownership as having a significant positive effect on

Managers perceived employee stock ownership as having a significant positive effect on product quality. As part of that same study, managers were also asked to rate the effect of employee stock owners...

Q: How might you explain differences among averages in the results?

How might you explain differences among averages in the results?

Q: The goal of your marketing campaign is for more than 25%

The goal of your marketing campaign is for more than 25% of supermarket shoppers to recognize your brand name. A recent survey of 150 random shoppers found that 21.3% recognized your brand name. a. It...