. Measurements in a data set are subject to random errors, but it is known that the data set fits a Gaussian distribution. Use standard Gaussian tables to determine the percentage of measurements that lie within the boundaries of F1.5a, where a is the standard deviation of the measurements.

Q: For a set of data that cannot be assumed to be distributed in a bell shape, approximately what…

A: Our aim is to find the percentage of values will be between the mean and two standard deviation.

Q: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 6.…

A:

Q: Given a normal distribution with a mean of 150, and a standard deviation of 7.5, find the value of a…

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

Q: A survey asks a random sample of 1500 adults in Ohio if they support an increase in the state sales…

A: From the provided information, Sample size (n) = 1500 adults 40% of all adults in Ohio support the…

Q: Given a dataset: {x1, X2, Xn}, .... a) write down the formula for the standard deviation (T ). (b)…

A:

Q: At what sample size would the standard deviation of the distribution of all possible sample means be…

A:

Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…

A: Given Information: Assuming that the females have pulse rates that are normally distributed.

Q: i have already submitted the question for the first portion, I just need D and E answered, thank…

A: The random variable height follows normal distribution. We have to test whether the mean height of…

Q: given the normally distributed variable xwith the mean 50 and standard deviation 7, find p (56]x[68)

A: Given: μ=50 and σ=7. The z-score is calculated as-z=x-μσ

Q: A shop owner claims that on average, his shop has a daily turnover of R75 000. Test this claim at…

A: The answer is attached below,

Q: A personnel director in a particular state claims that the mean annual income is the same in one of…

A: a) The mean annual incomes in Counties A and B are equal. Null hypothesis: Alternate hypothesis:…

Q: Assume that females have pulse rates that are normally distributed with a mean of u= 73.0 and a…

A: Let X be the pulse rate of the females. Then X follows normal distribution with mean µ=73.0 and…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(0…

A: The z-scores are normally distributed with mean 0 and standard deviation 1 Given , P( 0 < z <…

Q: for a population with a standard deviation of o=20 find the z-score for each of the following…

A:

Q: When a population is small, it is not practical to determine its mean and standard deviation by…

A: Farmula used

Q: Assume that females have pulse rates that are normally distributed with a mean of u = 73.0 beats per…

A:

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when the…

A: It is given that p is 0.10.

Q: At what sample size would the standard deviation of the distribution of all possible sample means be…

A: We have given that,  We have to choose sample size when population standard deviation and sample…

Q: A company pays its employees an average wage of $3.25 an hour with a standard deviation of 60 cents.…

A: Solution

Q: answer parts​ (a) through​ (e). Assume the population variances are not equal. If​ convenient, use…

A: Given Data : For Sample 1 x̄1 = 42400.0 s1 = 8400.0 n1 = 10 For Sample…

Q: If X is normally distributed around a mean of 24 with a standard deviation of 20, find P(X > 35) P(…

A:

Q: Given: Two shares X and Y. The ARR for X is 24%, and the standard deviation is 12%. The ARR for Y is…

A:

Q: Given the normally distributed variable X with mean 18 and standard deviation 3, find P (X s 15)

A:

Q: A random sample of 75 eighth grade students scores on a national mathematics assessment  test has a…

A: Population mean (µ) = 270Standard deviations (σ) = 30Sample size (n) = 75Sample mean (x̅) =…

Q: If W is a normally distributed with the mean of 225, find the standard deviation, given that P(X <…

A: Given data: Mean  = 225 find: Standard deviation

Q: question is in the picture

A: we want to test the hypothesis

Q: A normel curve with a mean of 400 and a standard deviation of 50 is shon. Shade the rogion under the…

A: The mean is 400 and the standard deviation is 50.

Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A:

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

A:

Q: If one normal distribution has a standard deviation of 5, and another has a standard deviation of…

A: Given that  One normal distribution has standard deviation is 5. Another has standard deviation of…

Q: If X follows a gamma distribution with a mean of 12 and a standard deviation of 6 then the parameter…

A: gamma distribution : mean= αβ standard deviation=β√α

Q: Suppose the data have a bell-shaped distribution with a mean of 30 and a standard deviation of 5.…

A: Given data ,u=30σ=5

Q: An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.4…

A:

Q: If x is normally distributed with a mean of 5 and standard deviation of 2, find the P(x>8).

A:

Q: Using z-scores, which of the following represents the probabilitythat a randomly selected Champlain…

A:

Q: The results of a national survey showed that on average, adults sleep 6.9 hours per night.Suppose…

A:

Q: A personnel director in a particular state claims that the mean annual income is the same in one of…

A: The two samples are independent, random and normally distributed. There population variances are…

Q: de . Find the standard deviation of the observations 5, 11, 18, 25 and 41, using muill

A:

Q: The weights of a certain dog breed are approximately normally distributed with a mean of u = 53…

A: Given: μ = 53σ = 5

Q: A given distribution has a population mean, μ, of 106 and a population standard deviation, σ, of 11.…

A: Mean = 106 Standard deviation = 11 Raw score = 104

Q: A given distribution has a population mean, μ, of 136 and a population standard deviation, σ, of 12.…

A: Given, Mean(μ) = 136 standard deviation ( σ) = 12 raw score (x) = 147

Q: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 12.…

A: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 12.…

Q: Consider a normal distribution curve where 70-th percentile is at 11 and the 30-th percentile is at…

A: Given 70-th percentile is at 11, then…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(z…

A: Solution-: Given: Z are normally distributed with mean of 0 and a standard deviation 1  If…

Q: The revenue of a  shop is approximately normally distributed with a mean of $4500 and a standard…

A:

Q: In Country A, the population mean height for 10-year-old girls is 54.3 inches with a standard…

A:

Q: The diameter of an electric cable is normally distributed, with a mean of 0.9 inch and a standard…

A: Given data: The given mean is xm=0.9 inch. The given standard deviation is σ=0.02 inch. The given…

Q: A company claims that the mea consumption of 930 kWh. Assume the population standard deviation is…

A:

Q: The weights of a certain dog breed are approximately normally distributed with a mean of u = 53…

A: Given that  The weights of dog are normally distributed. Mean (μ) = 53 pounds Standard deviation (σ)…

Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A: Note: Hey there! Thank you for the question. As you have posted a question with more than 3…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.