l Verizon LTE 10:01 AM @* 82%, . + 42-4-STAT 3.6-Summarize Question 1 (6 points)
ID: 3196126 • Letter: L
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l Verizon LTE 10:01 AM @* 82%, . + 42-4-STAT 3.6-Summarize Question 1 (6 points) Zoe is interested in attending graduate school and wants to know how much she can expect to be paid. Her research a survey of 14,000 graduate students had a mean salary of $25,000 with a standard deviation of $2,000 Identify which of the following statements must be true. At least 75% of the graduate students surveyed were paid between $21,000 and $29,000. I. Approximately 95% of the graduate students surveyed were paid between $21,000 and $29,000. 2. 3. At least 10,500 of the graduate students surveyedExplanation / Answer
Mean = 25000 $
SD= 2000 $
N= 14000
2) At least 95% of the students will receive salary between 25000+-2*2000 {Mean+-2*SD. The 68-95-99 rule}
That is between 25000-4000 and 25000+4000
95% will receive pay between {21000, 29000}
This statement is true
If 2 is true, 1 must be true
So, both (1) and (2) are correct
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