Use the Standard Normal Distribution to answer the following question: The mean serum high-density-lipoprotein (HDL) cholesterol of females who age between 20-29 years old is u = 53.0 unit of measurement. The standard deviation is o = 12.0 units of measurement. Knowing that the serum HDL cholesterol in this population of females who age between 20 and 29 years old is normally distributed. If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is less than or equal to 60? Calculate z-score and then use the z-value table to obtain the probability. a. b. If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is between 29 and 77?

Q: What percentage of fire station response times are under 3 minutes

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Q: Identify the values of m and s for the standard normal distribution.

A: Introduction A stand. normal dist. has a bell shaped curve.

Q: Assume that the scores of a college entry exam are normally distributed with a mean of 400 and a…

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A:

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A: The 68-95-99.7% Rule:For a normal distribution, the empirical rule (68-95-99.7% Rule) state that…

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A: The area under the curve within one standard deviation of the mean is about 68%. So it is true

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A: From the above data  under what conditions can the mean of the sample be treated as a value that is…

Q: Response time is an important statistic for measuring the effectiveness of a fire department, and is…

A: Using stardization of Normal distribution

Q: What proportion of a normal distribution is located between z= -2.00 and z = 2.00?

A: Draw the normal curve and shade the area between z=-2.00 and z=-2.00.

Q: in a matched design, participants are matched on different characteristics. true or false?

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Q: Low‑density lipoprotein, or LDL, is the main source of cholesterol buildup and blockage in the…

A: 68-95-99.7% rule:In normal distribution, the empirical rule of 68-95-99.7% rule states that 68% of…

Q: The relative frequency histogram represents the length of phone calls on​ George's cell phone during…

A: A histogram is a visual representation of continuous data.

Q: What percentage of a normal distribution falls between z = -1.16 and z = +1.16?

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Q: On a standard normal distribution, what percentage of scores lie within 2.89 standard deviations on…

A: We need to find the scores that lie within 2.89 standard deviations.

Q: What proportion of percentage of the normal distribution lies above z=-1 ?

A: Let Z ~N(0,1). Then, the proportion of the normal distribution lies above z=-1 is P(Z>-1).

Q: What proportion of the scores in a normal distribution falls below z= -1.32?

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Q: What percentage of scores in a normal distribution fall at or above a z score of 1.04?

A: given data  normal distribution percentage of scores above Z:1.04 = ?

Q: In a normal distribution, what percentage of the area under the curve is within three standard…

A: We have given the following statement about normal distribution.

Q: If a sample is randomly collected, we can be assured that the data follows a normal distribution.…

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Q: What are the characteristics of a normal distribution? What two characteristics make a distribution…

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Q: What proportion of a normal distribution is located between the mean and z = -0.47?

A:

Q: What proportion of a normal distribution is located between the mean and z = 2.00?

A: proportion of a normal distribution is located between the mean and z = 2.00

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: If a regulation basketball is 12 PSI (pounds of force per square inch of area) with a standard…

A: Percentile : Percentile is the number such that certain percentage of data fall below that value.…

Q: makes a distribution a normal distribution?

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Q: what is the mean and standard deviation of all z distributions?

A: Z is distributed as a standard normal variable.

Q: About what percentage of a normal distribution falls within 2.5 standard deviations of the mean?

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Q: Research has shown that IQ scores form a normal distribution with a H = 100 and o = 15. We also know…

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