A population value has a normal distribution with μ=245.4 and σ=76.4. A random sample of size n=231 is drawn. Find the probability that a single randomly selected value is between 238.4 and 251.4. Find the probability that a sample size of n=231 is randomly selected with a mean between 238.4 and 251.4

Q: A random sample of size 100 is taken from a population having a mean of 20 and a standard deviation…

A:

Q: Assume the random variable X is normally distributed with mean u = 50 and standard deviation o = 7.…

A: Let X be the random variable which follows normal distribution with mean 50 and standard deviation…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given data:  mean = 0°C and  standard deviation =  1.00°C.  Assume that the readings at freezing on…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Solution: Let X be the reading at freezing on a bundle of thermometers. From the given information,…

Q: Assume a simple random sample of 85 body temperatures having a mean of 98.4°F. Given a population…

A:

Q: Assume that the heights of a population of adults form a normal distribution with a mean µ =69…

A: Consider that there are 12 inches in 1 foot.The provided information is:

Q: Let X be a random variable with a mean equal to 100 and a standard deviation equal to 15. Let…

A:

Q: Dr. Gregory House makes an average of µ = 73 Covid-19 diagnoses every week. The distribution of…

A: Given data,μ=73σ=10P(X>80)=?

Q: A population of values has a normal distribution with μ=248.6�=248.6 and σ=97.6�=97.6. You intend to…

A: μ=248.6σ=97.6n=246

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 X~N (0, 1) Here X be a random…

Q: Find P41, the 41-percentile. This is the temperature reading separating the bottom 41% from the top…

A: Answer:  Given, Assume that the reading at freezing on batch of thermometers are normally…

Q: Assume the samples are random and independent and the populations are normally distributed. A marine…

A: Given problem is :   Assume the samples are random and independent and the populations are…

Q: A population has a mean of 180 and a standard deviation of 36. A sample of 81 observations will be…

A: The population mean is 180. The population standard deviation is 36. The sample size is 81. We have…

Q: Suppose the random variable xx has a normal distribution with μ=300μ=300 and σ=30σ=30. Find the…

A: Given: μ=300, σ=30.

Q: A population of values has a normal distribution with μ=89.8 and σ=94.7. A random sample size of…

A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: Assume the random variable X is normally distributed with mean u = 50 and standard deviation o = 7.…

A: Given,μ=50σ=7Find 96th percentile?

Q: A normal population has a mean of of 60 and standard deviation of 12. A random sample of 9 is…

A: Using normal distribution we find the given probability.

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Given Data Population Mean,μ = 0.0 Population Standard Deviation,σ = 1.0

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Let X denote the readings at freezing on a bundle of thermometers are normally distributed with a…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given: X follows normal distribution with μ=00C Standard Deviation σ=1.000C

Q: Suppose that among the population of smartphone owners with 16GB of storage, the mean amount of…

A: From the provided information, Mean (µ) = 13 GB Standard deviation (σ) = 3 GB

Q: Assume that for the population of all unemployed individuals in Minnesota, the population mean…

A:

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given data,μ=0σ=1P(1<X<2.25)=?

Q: q1- Consider an infinite population with a mean of 160 and a standard deviation of 25. A random…

A: Given

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Let, X: Reading at freezing on a batch of thermometers Assume X is Normally distributed Given: Mean,…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given: Mean (µ) = 0oC Standard deviation (σ) = 1.000C X~N (0, 1)

Q: Assume that the heights of a population of adults form a normal distribution with a mean µ =69…

A: It is known that, there are 12 inches in 1 foot.The provided information are:

Q: standard

A: Given: Mean, μ=80 Standard deviation, σ=7 Sample size, n=49 To find: P (X>82) Using normal…

Q: About 7% of the population has a particular genetic mutation. 183 people are randomly selected.…

A: Given Information: Number of people, n = 183 Percentage of population has a particular genetic…

Q: A normal population has a mean of of 60 and standard deviation of 12. A random sample of 9 is…

A: Given : Mean = μ = 60 Sample size = n = 9 Standard deviation = σ = 12

Q: Assume that for the population of all unemployed individuals in Minnesota, the population mean…

A:

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

A: It is given that the mean is 0 and standard deviation is 1.

Q: The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption…

A: Answer of last part may vary if you take table z value other than two decimal places

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Identify the notation for each given number. For a random sample of 550 randomly selected car…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A:

Q: and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.…

A: Given: Assumption:  The readings at freezing on a bundle of thermometers are normally distributed…

Q: The average amount of money spent for lunch per person in the college cafeteria is $7.36 and the…

A:

Q: Find P83, the 83-percentile

A: Let Z denote reading of thermometers at freezing. Given that X follows N(0,1).

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.