The incubation time for a breed of chicks is normally distributed with a mean of 22 days and standard deviation of approximately 3 days. Look at the figure belc following questions. If 1,000 eggs are being incubated, how many chicks do we expect will hatch in the following time periods? (Note: In this problem, let us ag or a succession of days as a continuous interval of time. Assume all eggs eventually hatch.) Area Under a Normal Curve 0.15% 2.35% H-30 (a) in 16 to 28 days (b) in 19 to 25 days chicks H-20 chicks (c) in 22 days or fewer 13.5% chicks μ-0 34% H 68% 95% -99.7% 34% -0 13.5% 2.35% μ+20 0.15% + H+30 Ⓡ

Q: The lifetime of a certain type of t.v tube has a normal distribution with a mean of 80.0 and a…

A: Given Data: Let X represent the random variable   Mean=80 SD=6   X~ Normal (80, 62)

Q: concentration (µg/mL) of a specific dose of ampicillin in the urine after various periods of time.…

A: In question, Given that we want to estimate the concentration (µg/mL) of a specific dose of…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: From the provided information, Mean (µ) = 116 Standard deviation (σ) = 14 X ~N (116, 14)

Q: In a​ country, the mean time served by prisoners released from prison for the first time is 31.5…

A: Mean time = 31.5Standard deviation = 16.3

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ…

A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: Consider a normal population with a mean of 10 and a variance of 4. Find P(X < 6).

A:

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A:

Q: Q scores based on the Wechsler Adult Intelligence Scale (WAIS) are assumed to be normally…

A: Given data,Mean μ=100standard deviation σ=15Score is x=125z-score=?

Q:

A: Given that IQ scores of adults is normally distributed with mean 100 and standard deviation 15. The…

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: scores on an english test are normally distributed with a mean of 31.5 and a standard deviation of…

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Q: Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone…

A: The test hypotheses are:Null hypothesis:H0: μ = 4.7.Alternative hypothesis:H1: μ ≠ 4.7.