STA 2023: Exam 1 - CH. 1-3
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+ [LATEST] 100%
GUARANTEED PASS
25% - CORRECT ANSWER-What percent of the data falls below Q1?
Above Q3 - CORRECT ANSWER-One-fourth of the dataset lies:
Q2 - CORRECT ANSWER-The median is equivalent to which quartile?
The interquartile range - CORRECT ANSWER-Which of the following numerical summary
measures is not sensitive to outliers in a dataset?
The amount of milk produced by a cow in one 24-hour period - CORRECT ANSWER-Which of the
following is a continuous quantitative variable?
median & interquartile range - CORRECT ANSWER-Which descriptive summary measures are
considered to be resistant statistics?
unimodal, roughly symmetrical, bell-shaped curve - CORRECT ANSWER-The normal curve is
most likely to be described as
a statistic - CORRECT ANSWER-The chancellor of a major university was concerned about
alcohol abuse on her campus and wanted to find out the proportion of students at her
, university who visited campus bars on the weekend before the final exam week. Her assistant
took a random sample of 250 students. The portion of students in the sample who visited
campus bars on the weekend before the final exam
week is an example of ________
Median - CORRECT ANSWER-Which measure of central tendency can be used for both
numerical and categorical variables?
34% - CORRECT ANSWER-Using the percentage approximations for the normal curve, the
percentage of scores between the 10) mean and one standard deviation below the mean is
Surveying - CORRECT ANSWER-The British Airways Internet site provides a questionnaire
instrument that can be answered electronically. Which of the 4 methods of data collection is
involved when people complete the questionnaire?
interquartile range and median - CORRECT ANSWER-When extreme values are present in a set
of data, which of the following descriptive summary measures are most appropriate:
Q3 - CORRECT ANSWER-Which of the following statistics is not a measure of central tendency?
Random selection - CORRECT ANSWER-If a student who wants to study alcohol use at a high
school obtains a complete list of the students and has a blindfolded person select as many
people as needed for the study, the student is conducting
has a mean of 0 and a standard deviation of 1 - CORRECT ANSWER-In its standardized form, the
normal distribution
0 - CORRECT ANSWER-In a distribution of Z scores, the mean is always
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+ [LATEST] 100%
GUARANTEED PASS
25% - CORRECT ANSWER-What percent of the data falls below Q1?
Above Q3 - CORRECT ANSWER-One-fourth of the dataset lies:
Q2 - CORRECT ANSWER-The median is equivalent to which quartile?
The interquartile range - CORRECT ANSWER-Which of the following numerical summary
measures is not sensitive to outliers in a dataset?
The amount of milk produced by a cow in one 24-hour period - CORRECT ANSWER-Which of the
following is a continuous quantitative variable?
median & interquartile range - CORRECT ANSWER-Which descriptive summary measures are
considered to be resistant statistics?
unimodal, roughly symmetrical, bell-shaped curve - CORRECT ANSWER-The normal curve is
most likely to be described as
a statistic - CORRECT ANSWER-The chancellor of a major university was concerned about
alcohol abuse on her campus and wanted to find out the proportion of students at her
, university who visited campus bars on the weekend before the final exam week. Her assistant
took a random sample of 250 students. The portion of students in the sample who visited
campus bars on the weekend before the final exam
week is an example of ________
Median - CORRECT ANSWER-Which measure of central tendency can be used for both
numerical and categorical variables?
34% - CORRECT ANSWER-Using the percentage approximations for the normal curve, the
percentage of scores between the 10) mean and one standard deviation below the mean is
Surveying - CORRECT ANSWER-The British Airways Internet site provides a questionnaire
instrument that can be answered electronically. Which of the 4 methods of data collection is
involved when people complete the questionnaire?
interquartile range and median - CORRECT ANSWER-When extreme values are present in a set
of data, which of the following descriptive summary measures are most appropriate:
Q3 - CORRECT ANSWER-Which of the following statistics is not a measure of central tendency?
Random selection - CORRECT ANSWER-If a student who wants to study alcohol use at a high
school obtains a complete list of the students and has a blindfolded person select as many
people as needed for the study, the student is conducting
has a mean of 0 and a standard deviation of 1 - CORRECT ANSWER-In its standardized form, the
normal distribution
0 - CORRECT ANSWER-In a distribution of Z scores, the mean is always
