The appropriate interval width for a random sample of 100 observations that fall between 50 and 250 is O A 10 О В. 25 А ОС. 15 O D. 20

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ =29.15       standard…

Q: Assume that for the population of MBA (Supply Chain Management), the average starting salary is PKR…

A: Points on sampling distribution of the sample mean: If the true population distribution of a random…

Q: The diameter of a brand of tennis balls is approximately normally distributed, with a mean of 2.72…

A: Given that  Population Mean (\mu)(μ) = 2.722.72 Population Standard Deviation (\sigma)(σ) =…

Q: From a sample with n=32, the mean number of televisions per household is 4 with a standard deviation…

A: Chebyshev’s rule can be used for the large set data. It says that at least 1-1/k2 percentage of the…

Q: The world's smallest mammal is the Kitti's hog-nosed bat, with a mean weight of 1.5 grams and a…

A: as per Bartleby guideline expert have to answer first three Subparts only dear student please upload…

Q: For random samples of size n=16 selected from a normal distribution with a mean of 75 abd standard…

A: Given Information Mean µ = 75 Standard deviation(σ) = 20

Q: If all the possible random samples withn 36 scores are selected from a normal population with u- 80…

A: sample mean=E(X¯)=E∑i=1nXi/n=∑i=1nμn=nμn=μsample mean=μ=80

Q: Suppose x has a distribution with a mean of 13.9 and a standard deviation of 2.1. Random samples of…

A: The mean is 13.9 and the standard deviation is 2.1, and the sample size is 49.

Q: 2. A random sample of 83 reconstructed clay vessels from the Turquoise Ridge archaeologica indicated…

A: The sample size can be calculated as: n=z×σE2 Here, z = desired confidence level E = The allowable…

Q: Suppose that students who finished JHS in a public school get an average of 5.6 hours of sleep each…

A: Mean(µ) = 5.6 Standard deviations (σ) = 1.7 n = 35

Q: From a sample with n=20​, the mean number of televisions per household is 4 with a standard…

A: Given n=20

Q: If random samples, each with n = 25 scores, are selected from a normal population with p = 80 and a…

A: Given information Mean µ = 80 Standard deviation σ = 20

Q: Suppose that an airline uses a seat width of 16.3in. Assume men have hip breadths that are normally…

A: It is given that the mean is 14.7 and standard deviation is 1.1.

Q: Suppose that a measurement has a mean μ and standard deviation o = 3. How large a sample size n is…

A: Given Standard deviations=3 E=0.1 Alpha=0.15

Q: 23. Make a conjecture about the relationship between og, ox, and N, where az is the standard…

A:

Q: A company that manufactures oil seals found the population mean to be 49.15 mm (1.935 in.), the…

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

Q: 2- Bob takes on average of 50.5 hours uniformly distributed to to finish a portrait in his studio…

A: Given information- Population mean, µ = 50.5 hours Population standard deviation, σ = 10.5 hours…

Q: Suppose x has a distribution with a mean of 13.9 and a standard deviation of 2.1. Random samples of…

A:

Q: If random samples of size n are drawn from any population with a mean µ and standard deviation o,…

A:

Q: 8. Claim: The standard deviation of pulse rates of adult women is at least 50. For the random sample…

A: Solution: 8. a. Let σ be the standard deviation of pulse rates of adult women.

Q: From a sample with n= 32, the mean duration of a geyser's eruptions is 3.61 minutes and the standard…

A: Given that,  n= 32 ,μ=3.61σ=1.11 The formula of k is, The value of k is,

Q: From a sample with n=36 the mean duration of a geyser's eruptions is 3.21 minutes and the standard…

A:

Q: Assume that for the population of MBA (Supply Chain Management), the average starting salary is PKR…

A: From the provided information, Mean (µ) = PKR 72,000/- Standard deviation (σ) = PKR 20,000/-

Q: The heights (in cm) for a random sample of 60 males were measured. The sample mean is 166.55, the…

A:

Q: Because 10 is (7). the interval, there (8). enough evidence that the average weight loss is more…

A: answers Comment

Q: Suppose that 31% of all births in a certain region take place by Caesarian section each year. a. In…

A: Let p be the probability that a birth is taken place by Caesarian section. Given that p = 0.31 Let X…

Q: Suppose the total cholesterol levels of all women 20 or older in U.S. have the average of μ=170μ=170…

A:

Q: 2. The mean cost of a particular spare part in the market is 900$. Also, it is assumed that the…

A: The central limit theorem states than if the sample size is 30 or greater than 30, then it can be…

Q: It is will known that the proportion of smokers in Jordan = 0.7 , using a random sample of size n =…

A: It is will known that the proportion of smokers in Jordan = 0.7 , using a random sample of size n =…

Q: In a large community, 44% of the people have blood type O. Let p be the proportion of people who…

A:

Q: Two simple random samples each of size n are drawn, one with replacement and another without…

A:

Q: Suppose x has a distribution with a mean of 90 and a standard deviation of 27. Random samples of of…

A: Given data, μ=90σ=27n=36x=85.5z=?

Q: (a) If a random sample of size n = 35 is drawn, find µ, o z and P(15 <x < 17). (R H = P(15 sxs 17) =…

A:

Q: The central limit theorem states that if all possible random samples of sizeNare drawnfrom a…

A: Central limit Theorem: If we have a large enough sample , the distribution of sample is…

Q: From the set of numbers {1, 2, 5, 6}, a random sample of size 2 will be selected with replacement.…

A: From the provided information, The mean of the data values 1, 2, 5, 6 can be obtained as:

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: A. Suppose X is a random variable with expectation, μ and standard deviation, σ. Then, for any…

Q: Suppose a random sample of n = 25 observations is selected from a population that is normally…

A:

Q: A research worker wants to determine the average time it takes a mechanic to rotate the tires of a…

A: Given  alpha=0.05, sigma=1.5 MOE=0.3

Q: From a sample with n = 16, the mean number of televisions per household is 4 with a standard…

A: Chebyshev's theorem and empirical rule are used to calculate the percentages of data lies within…

Q: The inside diameter of a randomly selected engine piston ring is a normally distributed random…

A:

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

A: Sketch the normal curve and shade the area between X=35 and X=62.

Q: In a certain barangay, Peter Jhon wants to estimate the mean weight u, in kilograms, of all…

A:

Q: Suppose that the number of points scored in a game comes from a normal population with an average of…

A: Here points scored follows Normal distribution with mean 12 and SD 9. Here we need to use the…

Q: The inside diameter of a randomly selected metal ring is a random variable with mean value 50 mm and…

A: Given ,mean (μ) =50standard deviation(σ)=2.4sample size(n) =16

Q: 2. Suppose that a random variable X follow known standard deviation of 30. We're Using a = 0.01,…

A: σ = 30 n = unknown Ho:μ=75 and Ha:μ&lt;75 α = 0.01 The power of the test is 0.90 and mean is given…

Q: The average age for licensed drivers in the county is u of o = 13.2 years. 40.3 years with a…

A: (a) The average age for licensed drivers in the country is μ=40.3 and σ=13.2. The sample mean is M=…

Q: Suppose that for a sample size of n = 9, we have 4; = 90 and E4 = 1700. Calculate the sample…

A:

Q: Suppose a random sample of n= 25 measurements is selected from a population with mean u and standard…

A: Here is given that, mean is 196 and standard deviation is 25 We will use sampling distribution.

Q: In a population of Siberian flying squirrels in western Finland, assume that the the number of pups…

A: Since the sample size is greater than 30, in spite of being non normal distribution the population…

Q: Suppose that a simple random sample is taken from a normal population having a standard deviation of…

A: Given, n=64 σ=5.5α=0.05MOE=Zα/2*σn

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.