Exam 16: Statistical Reasoning in Everyday Life

The most frequently occurring score in a distribution is the

Approximately 68 percent of the cases represented by the normal curve fall within ________ standard deviation(s) from the mean.

The ________ is a measure of ________.

Median is to range as ________ is to ________.

A random sample of females was observed to exhibit a lower average level of self-esteem than a random sample of males. To assess the likelihood that this observed difference reflects a real difference in the average self-esteem of the total population of males and females, it is necessary to

The percentage of college students whose gradepoint averages fall into various performance levels could be represented on a

Researchers studied the effects of vitamin supplements on the health of over 600 city residents throughout their adulthood. This research procedure best illustrated a

An observed difference between two sample groups is more likely to be statistically significant if

The average scores of two samples taken from the same population are most likely to differ if

Which of the following statistical measures is most helpful for indicating the extent to which IQ scores can be used to predict grades in school?

If the points on a scatterplot are clustered in a pattern that extends from lower left to upper right, this would suggest that the two variables depicted are

In which type of study are the same people tested and retested over a period of years?

After his property was vandalized by a small group of teenagers, Mr. Majka concluded that most teenagers are irresponsible and delinquent. Mr. Majka ought to be reminded that accurate generalizations depend on

Variation is to central tendency as ________ is to ________.

Central tendency is to variation as ________ is to ________.

The symmetrical bell-shaped figure used to represent the distribution of many physical and psychological characteristics is called a

If a difference between two samples is NOT statistically significant, which of the following can be concluded?

Professor Connolly uses a scatterplot to display the relationship between students' intelligence test scores and the number of failing grades they have received. The points on the plot are most likely clustered in a pattern that

What is the median of the following distribution of scores: 1, 3, 7, 7, 2, 8, 4?

Ahmed has five sisters who are 3, 3, 5, 9, and 10 years of age. The number "5" represents the ________ of the sisters' ages.