11.19 The proportion of observations from a standard Norm distribution that take values larger than -0.75 is about (a) 0.2266. (b) 0.7734. (c) 0.8023.

Q: For a normally distributed population with a mean of 40 and a standard deviation of 5 find P(38 < X…

A: Given Information: Required : To find P(38 &lt; X &lt; 41) Z-score is a measure which indicates…

Q: 7. The masses of plums from a certain orchard have mean 24g and standard deviation 4g. The plums are…

A: Given that: Population mean, μ=24 Population standard deviation, σ=4

Q: Approximately what percent of observations in the distribution lie between 144 and 164? (b)…

A: A Normal distribution has a mean µ = 154 and standard deviation σ = 10. As per 68-95-99.7 rule 68%…

Q: A game is played using one die. If the die is rolled and shows 1, the player wins $20. If the die…

A: Using the given information we make a table Outcome 1 2,3,4,5,6 Winning amount 20 0…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: a) The distribution of X ~ N(267, 1296) is and it is identified below: Let X be the distance of fly…

Q: mean of 256 feet and a standard deviation of 38 feet. Let X be the distance in feet for a fly ball.

A: Let X be the random variable such that the distance of fly balls hit to the outfield (in baseball).…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Step 1:Given the information:The mean distance of fly balls, μ=267  feetThe standard deviation, σ=44…

Q: he average amount of money spent for lunch per person in the college cafeteria is $6.57 and the…

A:

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: Below is a graph of a normal distribution with mean u = -3 and standard deviation O = 3. The shaded…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: ppose x comes from a distribution where the mean is 151 and the standard deviation is 22. Suppose a…

A: Population mean =151Population standard deviation =22Sample size n =63

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: 8. In an Oreo factory the mean mass of a cookie is given as 40 g. For quality control the standard…

A:

Q: Suppose you have a set of observations that follow a normal distribution with a mean  μ   and…

A: Solution-: Let, X= be the random variable Given: mean=μ,SD=σ We find, (a) P[X-μ&lt;1.75σ]=? (b)…

Q: [6.6] 21. Would it be appropriate to use a normal distribution to approximate the binomial…

A: Conditions for normal approximation to binomial :  If x is a random variable with distribution B(n,…

Q: 12. An electrical firm manufactures a 100-watt light bulb, which, according to specifications…

A: The given data is as follows:Population mean, Population standard deviation,

Q: Suppose the distribution of maximum monthly January temperatures in Canberra is normal with mean, μ…

A:

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: a. The distribution of x is X~N(263,43)μ=263σ=43

Q: The heights of women have a symmetric distribution with a mean of 66 inches and a standard deviation…

A: Given dataMean = 66 inchesStandard deviation =2.5 inchesApplying empirical formula68% of data falls…

Q: A Normal distribution has mean µ = 21 and standard deviation ở = 3.2. Find the z-score for the…

A: Mean(μ)=21standard deviation(σ)=3.2

Q: A Normal distribution has mean µ = 21 and standard deviation o = 3.2. Find the following. (a) the…

A: The normal distribution with mean  and standard deviation

Q: a) What women’s height corresponds with a z-score of -1.50?

A: The question is about symmetric and unimodal distribution Given : Popl. mean height of women ( μx  )…

Q: 8. In the UK (United Kingdom) Baby Birth weight can be approximated by a Normal Distribution with N(…

A: Normal distribution with  N(3.39,0.55)

Q: Assume the resting heart rates for a sample of individuals are normally distributed with a mean of…

A: normal distribution μ = 70σ = 5 EMPIRICAL RULE : approximately 68-95-99.7% data fall within 1σ-2σ-3σ…

Q: A normal distribution has a mean of 19 and a standard deviation of 5. Use the 68-95-99.7 rule to…

A: Mean(µ) = 19Standard deviations (σ) = 5X ~ N (µ, σ )= N(19, 5)

Q: The overhead reach distances of adult females are normally distributed with a mean of 195 cm and a…

A:

Q: In the United States, the mean birth weight for boys is 3.41 kg, with a standard deviation of 0.55…

A: The given mean is 3.41, standard deviation is 0.55.