Exam 13: Reviewing Statistical Theory and Determining Sample Size

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

One of the most common probability distributions in statistics is the _____ distribution.

(Multiple Choice)
5.0/5
(29)

A specified range of numbers within which a population mean is expected to lie is known as the ______ estimate.

(Short Answer)
4.7/5
(29)

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 _____.

(Multiple Choice)
4.9/5
(31)

Which theory states that as sample size increases,the distribution of sample means of size n,randomly selected,approaches a normal distribution?

(Multiple Choice)
4.8/5
(32)

Describe the measures of dispersion and explain why standard deviation is used most often.

(Essay)
4.8/5
(32)

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 _____.

(Multiple Choice)
4.9/5
(42)

Which of the following is a measure of the central tendency of a set of scores?

(Multiple Choice)
4.7/5
(46)

The standard deviation eliminates the drawback of having the measure of dispersion in squared units rather than the original measurement units.

(True/False)
4.8/5
(29)

Three factors are required to specify sample size: (1)the variance of the population; (2)the population mean; and (3)the confidence level.

(True/False)
4.8/5
(49)

An estimate of the population mean in the form of a single value,usually the sample mean,is called a _____.

(Multiple Choice)
5.0/5
(39)

_____ is the long-run relative frequency with which an event will occur.

(Multiple Choice)
4.9/5
(38)

The confidence interval for a proportion uses which of the following formulas?

(Multiple Choice)
4.9/5
(32)

The measure of central tendency that identifies the value that occurs most often is called the _____.

(Multiple Choice)
4.8/5
(34)

Which of the following represents the standard deviation of the sampling distribution?

(Multiple Choice)
4.9/5
(35)

All of the following are characteristics of the standardized normal distribution EXCEPT _____.

(Multiple Choice)
4.9/5
(35)

Population parameters are measured characteristics of a specific population.

(True/False)
4.8/5
(33)

The following formula is the formula for calculating the ______ . The following formula is the formula for calculating the ______ .

(Multiple Choice)
4.7/5
(32)

The percentage of elements that meet some criterion is called a(n)_____.

(Multiple Choice)
4.8/5
(35)

The value below which half the values in a distribution fall is the _____.

(Multiple Choice)
4.8/5
(34)

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 _____.

(Multiple Choice)
4.9/5
(41)
Showing 41 - 60 of 84
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)