The Population Standard deviation for the height of dult Sunflowers in a large Pield is 3.5 inches if we want

Q: Suppose weights of the checked baggage of airline passengers follow a nearly normal distribution…

A: Let X be the random variable from normal distribution with mean (μ) = 45 pounds and standard…

Q: 12. The red blood cell count for a population of adult males can be approximated by a normal…

A: We have given that  X~N( μ , ?^2 )    μ = 5.4    , ? = 0.4   Z-score =( x - μ )/?  ,

Q: There is a new fertilizer that is supposed to increase plant growth. To test this, 16 soy bean…

A: The given values are  Sample size = n= 16 the sample mean = X  = 24 The sample standard deviation =…

Q: 3. A survey among freshman at a certain university revealed that the number of hours spent studying…

A: Given : μ=25σ=7X~N(μ=75,σ2=(7)2) We want to find, proportion of students studied less than 30 hours.

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Assume the speed of vehicles along an open stretch of a certain highway in Texas that is not heavily…

A: It is given that mean is 71 and standard deviation is 3.125.

Q: The heights of the women in a particular town are normally 143 cm and 168 cm. Using 95.4% of the…

A:

Q: For a set of 250 measurements the mean is 110 and the variance is 144, how many of these…

A: Mean = μ = 110 Variance σ2 = 144Standard deviation = σ = σ = 12

Q: Lazurus Steel rporation produces iron rods that are supposed to be 36 inches long. The machine that…

A:

Q: Two different species of trees have heights that are approximately normal in distribution. Tree A…

A: Given that Tree A has a mean of 36 feet and a standard deviation of 3 feet.   Tree B has a mean of…

Q: When tossing two dice and finding the mean, X we find that has a mean or expected value, and a…

A: Here, it is known that the mean is 3.5 and a population standard deviation of 1.7078. The sample…

Q: Suppose the rate of misprints in the printed text from a given publisher is three misprints per one…

A: The question is about discrete probability distribution.Introduction :1 ) Let, X be discrete random…

Q: You have acquired property south of Winnipeg that fronts on the Red River, a river that has a…

A: Let a random variable X denotes the flood crest level. Then, X has normal distribution with mean μ=5…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A: 1. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Lazurus Steel Corporation produces iron rods that are supposed to be 36 inches long. The machine…

A:

Q: standardized test has a pop. mean of 152 and a standard deviation of 16. Jenny has a z score of…

A: Given that n=500, z=-0.56

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A: The mean and standard deviation is μ=0 and σ=1. The rejection will be 3.3% data from the left hand…

Q: Naini, Cobourne, McDonald and Donaldson (2008) reported that a specific ratio of height to face…

A: According to the provided data, it is reported that a specific ratio of height to face length of 1…

Q: Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of…

A: Given that   x̄ = 14 , μ = 16 , ? = 7 , n = 4

Q: How does the median birth weight compare to the average birth weight?

A: Given that birth weights of children born in the United States are normally distributed with mean =…

Q: How is standard deviation a measure of distance?

A: We know that the standard deviation is the measure of the dispersion of data which is based on…

Q: The brain volumes (cm) of 20 brains have a mean of 1162.9 cm° and a standard deviation of 125.2 cm°.…

A: According to the range rule of thumb, most values should lie within 2 standard deviations of the…

Q: 2. Assume that IQ scores follow a Normal distribution with µ=100 and o=16. Using our IQR rule for…

A: Given, IQ score follows normal distribution with mean 100 and standard deviation 16.…

Q: A California lake has been stocked with rainbow trout. These trout have an average length of 24…

A: Given Information: Mean μ=24 Standard deviation σ=3 Someone goes fishing and catches a trout that is…