# Mean weekly earnings of a sample of 30 workers was 759 dollars with a standard deviation of 73 dollars

Mean weekly earnings of a sample of 30 workers was 759 dollars with a standard deviation of 73 dollars and the mean weekly earnings of a sample of 28 workees was 658dollars with a stardand deviation of 65 dollars Construct a 80% confidence interval ?
Explain what the confidence interval mean?
Is ut reasonable to say that there is not a significant diffrence in pay between construction workers and factory workers

## This Post Has 4 Comments

1. Expert says:

step-by-step explanation:

2. Expert says:

hi,

henry is an economist and wants to understand the relationship between inflation and consumer spending habits. for his research, he needs the consumer price index for 2014 and the inflation rate. based on the prices of goods given, what will he find to be the cpi and inflation rate for 2014? assume that a consumer’s basket for three consecutive years consists of the following:

you dont privide answer choices.

answer - 15% of a inflatation rate is 15% less in cpi

3. Expert says: