Need help with 10 Statistics Questions about the weight of football players
Exhibit 8: Theweight of football players is normally distributed with a mean of 200 poundsand a standard deviation of 25 pounds.13. Refer to Exhibit8. The probability of a player weighing more than 275 pounds isa.0.4505b.0.0013c.0.0250d.0.901014. Refer to Exhibit8. The probability of a player weighing more than 150 pounds isa.0.8413b.0.9772c.0.0528d.0.500015. Refer to Exhibit8. What percent of players weigh between 175 and 225 pounds?a.28.81%b.0.5762%c.68.26%d.57.62%16. Refer to Exhibit8. What is the maximum weight of the middle 95% of the players?a.259 b.151c.249d.190Exhibit 9:$6,000 is invested in Stock 1 and $4,000 in Stock 2. The expected percentreturns for the two stocks are 7% and 4%, respectively.17. Refer toExhibit 9. What is the expected percent return of the portfolio?a.6.5%b.5.5%c.5.8%d.6.8%18.Refer to Exhibit 9. What is the expected returnin dollars for the portfolio?a.$580b.$650c.$680d.$550Exhibit 10: It is known that a bottle of cologne has on average 3ounces of content with the standard deviation of 0.10 ounces. A random sampleof 100 bottles is selected. 13. Refer to Exhibit10. The standard deviation of the sample mean isa.0.3636 ouncesb.0.0331 ouncesc.4.0000 ouncesd.0.0100 ounces14. Refer to Exhibit10. The likelihood that the average content of the 100 bottles is less than2.99 ounces equalsa.2.58%b.2.28%c.15.87%d.11.96%15. Refer to Exhibit10. The likelihood that the average content of the 100 bottles fallsbetween 2.97 and 3.03 ounces equalsa.89.41%b.95.44%c.99.74%d.68.46%Exhibit 11: Ina local university, 64% of the students live in the dormitories. A randomsample of 36 students is selected for a particular study.16. Refer to Exhibit11. The expected value of the sample proportion of students living in thedormitories is a.0.16b.0.85c.0.08d.0.6417. Refer to Exhibit11. The standard deviation of the sample proportion of students living inthe dormitories is a.0.16b.0.36c.0.08d.0.6418. Refer to Exhibit11. The probability that the sample proportion of students living in thedormitories is at least 0.52 equalsa.0.0013b.0.9332c.0.9814d.0.5214
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