Questions from Business Statistics

Q: For the ages: Answer the parts of exercise 1.

For the ages: Answer the parts of exercise 1. Data from exercise 1: For the annual salary levels: a. Find the average. b. Find the median. c. Construct a histogram, and give an approximate value for...

Q: In a study of brand recognition, out of 763 people chosen

In a study of brand recognition, out of 763 people chosen at random, 152 were unable to identify your product. a. Estimate the percentage of the population (from which this sample was taken) who would...

Q: Consider an election poll designed so that each household has an equal

Consider an election poll designed so that each household has an equal chance of being selected and one registered voter is interviewed from each selected household. Analyze what would happen if singl...

Q: Based on careful examination of a sample of size 868 taken from

Based on careful examination of a sample of size 868 taken from 11,013 inventory items in a warehouse, you learn that 3.6% are not ready to be shipped. a. Find the standard error associated with this...

Q: From a list of the 729 people who went on a cruise

From a list of the 729 people who went on a cruise, 25 were randomly selected for interview. Of these, 21 said that they were “very happy” with the accommodations. a. What percent of the sample said t...

Q: You have chosen a sample of 25 supermarkets out of the 684

You have chosen a sample of 25 supermarkets out of the 684 you have responsibility for. These 25 have been inspected, and the number of violations of company policy has been recorded. For each of the...

Q: Select a random sample of three without replacement from the following (

Select a random sample of three without replacement from the following (very small) population of firms: IBM, GM, Ford, Shell, HP, Boeing, and ITT. Use the following sequence of random digits:58870536...

Q: Select a random sample of four without replacement from the following metal

Select a random sample of four without replacement from the following metal products corporations: Gillette, Crown Cork & Seal, MASCO, Tyco Laboratories, Illinois Tool Works, McDermott, Ball, Stanley...

Q: Draw a random sample of three account numbers from a population of

Draw a random sample of three account numbers from a population of 681 accounts receivable documents, starting with row 6, column 2 of the table of random digits.

Q: Draw a random sample off our firms from a population of 86

Draw a random sample off our firms from a population of 86 suppliers, starting with row 30, column 4 of the table of random digits.