Question: 2.1 The data represents a sample of Physical Science practical assignment marks for grade 12 learners The Physical Science teacher would like a 95% confidence

2.1 The data represents a sample of Physical

2.1 The data represents a sample of Physical Science practical assignment marks for grade 12 learners The Physical Science teacher would like a 95% confidence interval estimate of the mean for the marks The standard deviation is 75 . What is the interval estimate

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