A real estate agent believes that the average closing cost of purchasing a new home is at least $6,500 over the purchase price. To prove this, she randomly selects 40 new homes sales and finds that the average closing costs are $6,600. The standard deviation is equal to $120. At the .05 level of significance, is her claim correct?What is the z or t score?Question 1 options:A) 1.96B) 2.575C) 1.684D) 1.645
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