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Researchers were interested in the teachers' perceptions of physical activity in children. They asked a sample...

Researchers were interested in the teachers' perceptions of physical activity in children. They asked a sample of 10 elementary school grade 2 teachers to rate the physical activity level of the children in their class by filling in a questionnaire which asked about specific activities that they witness children participating in during a typical week. The questionnaire resulted in a class score out of 50 (scores could range from 0 to 50). The following is the data obtained by the researchers.

Class Activity Level Score 12 45 37 29 18 41 32 25 39 22

What is the mean class activity level score?

The summation of x=

The N is=

My final answer is= (Round your answer to 2 decimal places if needed)

What is the estimated standard deviation of the class activity level scores for this population based on the sample?

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