The measure of central tendency that identifies the value that occurs most often is called the _____.
a.mean
b.median
c.mode
d.range
Answer: C: Mode
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Marketing Research Chapter 13
- The confidence interval for a proportion uses which of the following formulas?
- If 35 percent of TV viewers recalled seeing an ad for a Toyota Prius on a particular television program based on a sample of 800 viewers, the 95 percent confidence interval for this study would be between approximately _____.
- An estimate of the population mean in the form of a single value, usually the sample mean, is called a _____.
- If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120, the 95 percent confidence interval about the mean is between approximately _____.
- In statistical terms, ______ the sample size ______ the width of the confidence interval about the mean at a given confidence level.
- Which of the following is a step in determining sample size?
- The formula below is used to calculate the ______ .
- Which of the following represents the standard deviation of the sampling distribution?
- Which theory states that as sample size increases, the distribution of sample means of size n, randomly selected, approaches a normal distribution?
- All of the following are characteristics of the standardized normal distribution EXCEPT _____.
- If the population mean is assumed to be 20 and the sample standard deviation is 5, a score of 15 would have a Z-value of _____.
- A frequency distribution of the population elements is called a _____.
- A frequency distribution of a sample is called a(n) _____.
- Which of the following is the symbol for the population standard deviation?
- The _____ distribution is a symmetrical, bell-shaped distribution that describes the expected probability distribution of many chance occurrences.
- One of the most common probability distributions in statistics is the _____ distribution.
- Which of the following is the symbol for the sample standard deviation?
- Find the approximate standard deviation of the following set of scores: 3, 6, 2, 7, 8 .
- Which of the following eliminates the drawback of having the measure of dispersion in squared units rather than in the original measurement units?
- If the average units produced in a month by a Ford Motor Co. plant for Ford Explorers is 22, but only 18 Explorers are produced on a given day in that same month, the deviation score for this one day is _____.
- If the price of a product ranges from $59 to $179, the range of these prices is _____
- Which of the following is a measure of dispersion?
- Find the mode of the following scores: 1, 2, 3, 4, 5, 5, 7
- Find the median of the following scores: 1, 2, 3, 4, 5, 5, 7