The computed chi-square value is positive because the difference between the observed and expected frequencies is Multiple Choice uniform linear squared always positive

Q: An investigator is interested in the possibility of merging the capabilities of television and the…

A: 1] n=50 2] μ=11.5 3] s=3.5

Q: A random sample of 10 subjects have weights with a standard deviation of 11.7640 kg. What is the…

A: Given  A random sample of 10 subjects have weights with a standard deviation of 11.7640 kg.

Q: By calculating the which the firm is exposed to a particular loss. the firm can determine the exter…

A: We know that the mean is the average value of data. It doesn't give any idea about the loss.…

Q: Use the table of standard normal probabilities to determine the proportion of the norm- curve that…

A: a. The standard normal variable is z, which follows the normal distribution with the mean of 0 and…

Q: In a random sample of 5000 UWC students, 2846 claimed to live in one of the campus’s residences.…

A: Given information- Sample size, n = 5000 We have given that out of 5000 UWC students, 2846 claimed…

Q: Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per…

A: Let , X be the Female pulse rate  In the given , X is normally distributed with mean u = 76 & sd…

Q: Suppose we guess a model with four explanatory variables with 25 observations. Also, suppose that…

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Q: Assume that the populations are approximately normal. Construct a 95% confidence inte for the…

A: For  Count, N1 : 14 Sum, Σx: 6984 Mean, x̄1 : 498.8571  Variance, s2:  617.0549…

Q: The null hypothesis asserts that the variance is less than 6. A random sample size of 26 is drawn…

A:

Q: A random sample of 10 subjects have weights with a standard deviation of 12.0643 kg. What is the…

A: n = 10 s = 12.0643 kg.

Q: A single sample of n = 16 scores has a mean of M = 65 and an estimated standard error of 2 points.…

A:

Q: Example 30 : In a study of an automobile insurance a random sample of 80 body repair costs had a…

A:

Q: A manufacturer says that the standard deviation of the strength of wrapping cord is 9 pounds. A…

A: We have given that  Sample size n =10 Population standard deviation =9 Sample variance =121

Q: The daily demand for a certain product is approximately normally distributed with mean 50 and a…

A: P(X=45)=?

Q: The standard deviation and variance vary in a related way since one can be calculated from the…

A:

Q: The Project Manager found that distribution of the amount of gravel (in tons) sold by a particular…

A: (As per the bartleby guidelines, for more than one question asked, only first one is to be solved.…

Q: In drilling a vertical wellbore, the spacing between major fractures are recorded. It has been found…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: A random sample of 10 subjects have weights with a standard deviation of 12.2153 kg. What is the…

A:

Q: Suppose that the average number of hurricanes heading to RGV is 32 per year witha standard deviation…

A: It is given that the, Hurricanes heading follows the normal distribution with the average number of…

Q: Assume that X is normally distributed with a mean of 10 and a standard deviation of 2. Determine…

A: It is given that the mean is 10 and the standard deviation is 2.

Q: The diameter of a pipe is normally distributed with a mean of 0.4 inch and a standard deviation of…

A: Given data,μ=0.4σ=0.02P(X>0.418)=?

Q: The weight of a certain type of brick has an expectation of 1.12 kilograms with a variance of 0.0009…

A:

Q: Let (x-bar) be the mean of a random sample of size 60 drawn from a population with mean 120 and…

A:

Q: Find the standard deviation of times taken for germination for cauliflower seeds. C

A: Let , X→N(μ=7 , σ) We have  , the exactly 90% of the cauliflower seeds germinate in 6 days or more.…

Q: Miya wants to know if on-time graduation (yes or no) of UPLB students is associated with their…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Show that any linear combination of n independent normal variates is also a normal variate.

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Q: have a variance of 1.20 x 10-4. construct a 95% confidence interval for o, the standard deviation of…

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Q: Assume that a parent distribution is repeatedly sampled, and the same uncertainty is assigned to…

A: We want to tell you above statement is true or false.

Q: Extensive experience with fans of a certain type used in diesel engines has suggested that the…

A:

Q: A random sample of 10 subjects have weights with a standard deviation of 10.6705 KG. What is the…

A:

Q: If a variable has a  very small standard deviation, and the outcomes of the variable will... a.…

A: Standard Deviation: Standard deviation measures how dispersed your data in from the mean.

Q: Assume that the data has a normal distribution and the number of observations is greater than fifty.…

A: Obtain the critical z value used to test a null hypothesis α = 0.05 for a two-tailed test. The…

Q: A player takes 10 shots on a target and has probability 0.2 of hitting the target in each shot,…

A: From the given information, number of shots (n) = 10…

Q: normally distributed

A: Let X be the random variable representing the weight of students. Given that X is normally…

Q: Suppose we predict a model with four explanatory variables with 25 observations. Also, suppose that…

A: The variance of the residuals can be obtained using the formula given below: Variance of…

Q: A sports psychologist tests a new coaching method and finds that of the 43 novice athletes who were…

A:

Q: In a random sample of 900 B.Admin students, 225 said that they wanted to become Statisticians.…

A: Introduction :-

Q: A researcher constructs a two-sided 99% confidence interval (CI) on the mean of a normal…

A: decrease by a factor of approximately 0.64

Q: Assume the failure rate for drivers road tests in Vancouver is normally distributed. On average 0.33…

A: Given X is normal Distributed with mean µ = 0.33 and standard deviation σ = 0.024 now will using…

Q: It is known that the average weight of babies born in a maternity ward is 3.2 kg and the variance of…

A: Given that μ=3.2kgσ2=0.09 kg2σ=0.3 kg a) Consider, the probability of babies weigh more than 4 kg…

Q: A sample of size 400 is taken from a population whose standard deviation is 16. Find the standard…

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Q: The researcher took a random sample of 50 residents and found that the mean height of men is 175cm.…

A: A normal distribution is the one which has same mean, median and mode.

Q: f a random sample of 100 vehicles is selected, calculate the standard error of the sample means

A: Concept and formula: The standard error is known as the estimated value of the standard deviation of…

Q: In a recent​ year, the mean number of strokes per hole for a famous golfer was approximately 3.5…

A: It is given that the mean number of strokes per hole for a famous golfer is 3.5.

Q: Assume that the data has a normal distribution and the number of observations is greater than fifty.…

A: It is given that the level of the significance is 0.09.

Q: A sample obtained from a population with σ = 12 has a standard error of σx̅ = 2 points. How many…

A: We have given that,  The population standard deviation (sigma) = 12 And standard error (sigmax) = 2…

Q: suppose the random variable X has a normal distribution with a mean of 10 and a variance of 16…

A: Given: The random variable X is normally distributed. The population mean is given as:…

Q: "suppose that a random sample of size 20 is taken from a normal distribution with unknown variance…

A: Given: n=20 μ=Unknownx=10σ2=1Andμ(Posterior)=15σ(Posterior)=0.1

Q: The life of light bulbs is distributed normaly, The variance of the lifetime is 900 and the mean…

A: