A population has mean = 27 and standard deviation σ = 22. Find μand σfor samples of size n = 100. Round your answers to one decimal place if needed. x ㅁㅁ Њт σ = x

Q: The average birth weight of elephants is 220 pounds. Assume that the distribution of birth weights…

A: Solution-: Given: μ=220,σ=50 We want to find the birth weight of elephants at the 90th percentile.

Q: Male and female populations of tortoises under 80 years old are represented by age in the table…

A: Here the given table is : Age males females…

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: Molly injured her ankle 12 weeks ago. Each week, her physical therapist has been recording her pain…

A: The given information is that Molly’s pain scores’ follows normal distribution with mean 60 and…

Q: Find the Z-Score for a IQ  test score of 142 when the mean is 100 and the standard deviation is 15.

A: It is given that the mean and standard deviation are 100 and 15, respectively. The IQ test score is…

Q: Suppose that you have a X= 75 on an exam with Ú=70. Which standard deviation would give you a better…

A: Given : Suppose that you have a X= 75 on an exam with Ú=70

Q: The weight of newborn babies is normally distributed, with a mean of 3.7 kilograms and a standard…

A: GivenThe weight of new born babies are normally distributed.The mean =3.7 KgThe standard deviation…

Q: Dr. Smith administered a test to her statistic class with 25 questions that were worth one point…

A: If n is multiplied by each observation, the new value for mean is, E(n×X) = nE(X) If n is multiplied…

Q: Assume that thermometer readings are normally distributed with a mean of 0 degree celcius and a…

A: Consider X be a random variable which follows normal distribution indicates thermometer readings.…

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: The mean height of the roses grown in the garden is 28 cm and the standard deviation is 3 cm. If the…

A: GivenMean(μ)=28standard deviation(σ)=3

Q: Assume that math test scores are normally distributed with a mean of 400 and a standard deviation of…

A:

Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What…

A:

Q: ind the percentage of area under a normal curve between the mean and the given number of standard…

A: The mean and standard deviation of the standard normal distribution are 0 and 1.

Q: The average age of senators in the 108th Congress was 62 years. If the standard deviation was 12.5…

A: Solution: Let X be the age of senator. From the given information,

Q: need range and standard deviation

A: The given data is, The ascending order of the data is, The no.of observations is, n = 40 The…

Q: The mean yearly rainfall in Sydney, Australia, is about 137 mm and the standard deviation is about…

A:

Q: Jack had an average score of 75 with a standard deviation of 3. Mikes z-score was 1.85. His actual…

A: We have given that,  X be the random variable from normal distribution with mean Or average score…

Q: The average person owns about 175 music cds. The standard deviation is about 37 music cds. If Tori…

A: Given information Population mean µ = 175 CDs Standard deviation σ = 37 CDs We have given that Tori…

Q: Find the mean, standard deviation, and relative standard deviation for the set of measurements (7,…

A: Mean: The mean value is calculated as follows: The sum of the observations is divided by the number…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: Given that.   X~N( μ , ?^2 )   μ=100     , ?=15   Z-score =( x - μ )/?