Question
In: Statistics and Probability
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of...
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the teachers were measured before and after the seminar. A positive number for change in attitude indicates that a teacher's attitude toward math became more positive. The twelve change scores are as follows. 4; 8; −1; 1; 0; 4; −3; 2; −1; 5; 4; −2
B) What is the standard deviation for this sample? (Round your answer to two decimal places.)
C) What is the median change score? (Round your answer to one decimal place.)
D) Find the change score that is 2.2 standard deviations below the mean. (Round your answer to one decimal place.)
Solutions
orchestra answered 1 year agoRelated Solutions
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of...
One hundred teachers attended a seminar on mathematical problem
solving. The attitudes of representative sample of 12 of the
teachers were measured before and after the seminar. A positive
number for change in attitude indicates that a teacher's attitude
toward math became more positive. The twelve change scores are as
follows. 4; 8; −1; 1; 0; 4; −3; 2; −1; 5; 4; −2
1.) What is the standard deviation for this sample? (Round your
answer to two decimal places.)
2.)...
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of...
One hundred teachers attended a seminar on mathematical problem
solving. The attitudes of representative sample of 12 of the
teachers were measured before and after the seminar. A positive
number for change in attitude indicates that a teacher's attitude
toward math became more positive. The twelve change scores are as
follows.
4; 7; −1; 1; 0; 5; −2; 2; −1; 6; 5; −3
1. What is the mean change score? (Round your answer to two
decimal places.)
2. What is...
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