In the province of Quebec, the mean for Sociology is known to be 73 with σ=14.3....

In the province of Quebec, the mean for Sociology is known to be 73 with σ=14.3. A certain class of 169 students had a mean of 75. Is the class mean statistically different from the provincial mean. Use an alpha level of 0.05 and state the critical value of z this corresponds to. Show the calculation of each component of the z separately. Special note any type of error possible.

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orchestra answered 2 years ago

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