Need help with part d. thanks One hundred teachers attended a seminar on math te

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Need help with part d. thanks

One hundred teachers attended a seminar on math teacher's attitude toward math became more p ematical problem solving. The ositive. The twelve change scores are as follows 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 What is the mean change score? (Round your answer to two decinial places Part (b) What is the standard deviation for this sample? (Round your answer to two decimal places ) Part (c) What is the median change score? (Round your answer to one decimal place.) l Part (d) oimal place) Find the change score that is 2 2 standard deviations below the mean (Round your answer to ane d bmission 3 (3/4 points I 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 One hundred teachers attended a seminar on teacher's attitude toward math became more positive. The twelve change scores are as follows

Explanation / Answer

You have Mean = 2

Standard Deviation = 3.67

2.2 SD below the Mean would be the score equivalent to Mean-2.2*SD

= 2-2.2*3.67

= -6.074

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