StatTutor Lesson - Two-Sample Problems: Proportions

true
Stat Tutor
true
true
You have completed 0 question sequences out of 4.
Two-sample problems--proportions
Current Time 0:00
Duration 0:00
Loaded: 0%
Stream Type LIVE
Remaining Time 0:00
 
1x
    • Chapters
    • descriptions off, selected

      Questions 1-3

      112

      Question 1.

      What type of data are analyzed by comparing two proportions?

      		A.
      		B.
      		C.
      		D.
      Incorrect. Proportions are used to numerically summarize categorical data. With two separate sets of categorical data, two proportions are compared—one for each data set.
      Correct. Proportions are used to numerically summarize categorical data. With two separate sets of categorical data, two proportions are compared—one for each data set.
      Incorrect. Try again.
      2

      Question 4

      250

      Question 4.

      True or false: This study should be analyzed by comparing two proportions because both the explanatory and the response variable are categorical with two categories.

      		A.
      		B.
      Incorrect. This is a correct statement.
      Correct. This is a correct statement.
      Incorrect. Try again.
      2

      Question 5

      305

      Question 5.

      True or false: All data for a two-sample proportion problem can be summaried in a 2x2 two-way table.

      		A.
      		B.
      Incorrect. This is a true statement.
      Correct. This is a true statement.
      Incorrect. Try again.
      2

      Question 6

      381

      Question 6.

      Are \(\widehat{p}_{1}\) and \(\widehat{p}_{2}\) marginals or conditionals?

      		A.
      		B.
      Incorrect. ˆp1 and ˆp2 conditionals because they are computed from information in their respective rows.
      Correct. ˆp1 and ˆp2 conditionals because they are computed from information in their respective rows.
      Incorrect. Try again.
      2