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A constructive action class has 30 students, The score for the Constructive Action class for 5 randomly selected students are below. 83, 77, 73, 71,

A constructive action class has 30 students, The score for the Constructive Action class for 5 randomly selected students are below.

83, 77, 73, 71, 62.

(Using the T-value/ T-Table)

a) Calculate the mean and standard deviation of the sample.

b) Calculate the Margin of Error (EBM)

c) Construct the 95% confidence interval of the true mean score of every student in the CA class.

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