1 / 9

Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z  -2.30).

Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z  -2.30). 0.0107 0.0099 0.9893 0.9901 0.9898. 10. Suppose Z ~ N(0, 1). Use the standard normal table or your calculator to determine P(-2.25 < z < 1.77). 0.9494 0.9415 0.9477 0.9616 0.9432. 10.

aldis
Download Presentation

Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z  -2.30).

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z  -2.30). • 0.0107 • 0.0099 • 0.9893 • 0.9901 • 0.9898 10

  2. Suppose Z ~ N(0, 1). Use the standard normal table or your calculator to determine P(-2.25 < z < 1.77). • 0.9494 • 0.9415 • 0.9477 • 0.9616 • 0.9432 10

  3. What is the 50th percentile of the standard normal distribution? • z = 0.50 • z = 0.0 • z = -0.5 • z = 1.0 • z = -1.0 10

  4. What is the 67th percentile of the standard normal distribution? • z = 0.67 • z = 1.67 • z = 0.44 • z = -0.44 • z = -0.67 10

  5. The SAT scores of incoming NCSU freshmen can be approximated by a normal model with mean 1775 and standard deviation 135 (2400 point scale). What proportion of incoming freshmen score between 1559 and 2072? • 0.0409 • 0.9313 • 0.6 • 0.9320 • .513 10

  6. The SAT scores of incoming NCSU freshmen can be approximated by a normal model with mean 1775 and standard deviation 135 (2400 point scale). The scholarship office will offer scholarships to students who score in the top 2.28%. What is the lowest score a student can achieve and be eligible for a scholarship? • 1505 • 2045 • 1908.47 • 1641.53 10

  7. A box of Extreme Choco Loops cereal is marked “Net Wt. 12 oz.” If the actual weight can be approximated by a normal model with mean 12 oz. and standard deviation 0.2 oz, what is the probability that a box weighs less than 12 oz? • 0.68 • 0.12 • 0.50 • 0.34 • 0.84 10

  8. A box of Extreme Choco Loops cereal is marked “Net Wt. 12 oz.” If the actual weight can be approximated by a normal model with mean 12 oz. and standard deviation 0.2 oz, what weight will be exceeded by 2.5% of the boxes? • 12.392 oz. • 11.608 • 9.50 oz. • 12.199 oz. • 11.80 oz. 10

  9. The cholesterol levels of adult American women can be approximated by a normal model with mean 188 mg/dL and a standard deviation of 24. Approximately what cholesterol value is the cutoff for the first quartile of adult American women cholesterol levels? • 164.15 • 171.8 • 204.19 • 182 • 194 10

More Related