Q11) Answer all the following questions from this section A) Construct a 95% confidence interval for the population mean

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Q11) Answer all the following questions from this section
A)
Construct a 95% confidence interval for the population mean, μ.
Assume the population has a normal distribution. A sample of 20
part-time workers had mean annual earnings of $3120 with a standard
deviation of $677. Round to the nearest dollar.
Group of answer choices
($1324, $1567)
($2657, $2891)
($2135, $2567)
($2803, $3437)
B) Interpret the confidence interval you found in the
previous question in a sentence.
C) Explain why the conditions were met to calculate the
confidence interval for the mean annual earnings for part time
workers. Be specific.