1. Area to the right of 1.323 under at-distribution with 21 degrees of freedom

Q: Suppose that the sitting back to-knee length for a group of adults has a normal distribution with a…

A: Given that, μ=23.3 inσ=1.1 in The value of X is significantly high is,

Q: 1. For a Normal Distribution where u = 5 and o= 2, where does approximately the lower 0.15% of the…

A: Introduction: Denote X as the random variable of interest here. It is given that X has a normal…

Q: find the z-score that has 30.5% of the distributions area to its left.

A: From the given information, PZ<z=30.5%⇒PZ<z=0.305

Q: Suppose an x distribution has mean μ = 2. Consider two corresponding  x  distributions, the first…

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Q: 1. Show that for a J-shaped distribution, with the maximum frequency towards the lower values of the…

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Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

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Q: Suppose two distributions with the following characteristics are given. Distribution A H= 47,100 O =…

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Q: Suppose that a certain type of electronic component follows an exponential distribution with a mean…

A: Given that  Suppose that a certain type of electronic component follows an exponential distribution…

Q: Find the z value to the left of the mean so that 76.52% of the area under the distribution curve…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Below the mean by 2 standard deviation B. Above the mean by 1/2 standard deviations C. Below the…

A: z-score can be calculated as: z-score above mean = µ+σ z-score below mean = µ-σ A. z-score below the…

Q: Suppose that the duration of a particular type of criminal trial is known to be normally distributed…

A: Given,mean(μ)=22standard deviation(σ)=4

Q: me that hybridization experiments are conducted with peas having the property that for offspring,…

A: From the given information we find the mean and sd

Q: 3. If the probability of defective bolts is 0.1, find (a) the mean and standard deviation for the…

A: Given data; Probability of defective bolts = 0.1 Total number of bolts = 500

Q: a) What is the marginal distribution of Z2.

A: Here use given joint distribution function of z1 and z2

Q: where the student t-distribution gragh is having more area than the area covered by normal…

A: Fromm the given information, The t-distribution is less concentrated around its peak on the other…

Q: 1. The lengths of a particular species of worm are normally distributed with a mean of 21 cm and…

A: We have given that.   X~N( μ , ?^2 )   μ =21 , ? =1.5   Z-score =( x - μ )/?

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

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Q: Suppose two distributions with the following characteristics are given. Distribution A H= 46,500 o =…

A: Correct answer is  (C)

Q: Find the​ z-score that has 93.82​% of the​ distribution's area to its left.

A: given probability is P(Z<z0)=0.9382

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: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

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Q: A normally distributed population has mean 57,800 and standard deviation 750.  a) The probability…

A: Given,mean(μ)=57,800standard deviation(σ)=750

Q: Because the leading digits of inter-arrival traffic times the distribution described by Benford's…

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Q: Find the upper 5% points of the following distributions: • Gamma(10, 10).

A: Given: Let the required point be a. P (X > a) = 0.05 P (X < a) = 1 - 0.05                =…

Q: Suppose two distributions with the following characteristics are given. Distribution A H=46,400…

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Q: 1. What is the area to the right of 1.5 under the t-distribution with 14 degrees of freedom? 2. What…

A: Given that  1. What is the area to the right of 1.5 under the t-distribution with 14 degrees of…

Q: Which ane of these graphs does not represent a nomal distribution? O.

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Q: Suppose two distributions with the following characteristics are given. Distribution A H=46,500 G…

A: Correct answer is   (B)

Q: area to right of 2.821 under a t-distribution with 9 degrees of freedom

A: Given data: t = 2.821 Degree of freedom  =9 To find the area to the right.

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A: Considering Z follows standard normal distribution, the value of c is to be obtained such that…

Q: Suppose random samples of n = 47 are collected from an unknown distribution with the properties u =…

A: Givenn=47μ=50σ=4∑x~N(n*μ , n*σ)

Q: Suppose two distributions with the following characteristics are given. Distribution A Distribution…

A: Given data: The value of distribution A=55,600 and value of distribution B=44

Q: Suppose that X has a Pareto distribution with a = 1.5 and 0 = 20, 000. Determine the mean excess…

A: Given : α = 1.5 θ = 20000 To find mean excess loss at 15000

Q: If X is normally distributed with a mean of 20 and a standard deviatic of 4. If you take a sample of…

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Q: 3 Find the t-value for an area 0.001 in the right tail of t-distribution with a sample of 10.

A: Given that  3) sample size n =10 Degree of freedom =df = n-1=9 NOTE:- According to bartleby…

Q: IfXhas exponential distribution with mean 1 (X~EXP(1)), then P(X>2|X>1)equals to

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Q: Consider the Last example and assumcR =- 1. can you cheek the consitenty of S, , arel s, ?1 Two new…

A: given that, s12=1n-1∑i=1n(Xi-X)2=1n-1∑i=1nXi2-nX2=nn-11n∑i=1nXi2-X2 Using law of large numbers(LLN)…

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

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Q: 6. Show that if the class interval of a grouped distribution is less than one third of the…

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Q: 3. Find the probability that the value of an item drawn at random from a normal distribution with…

A: HERE GIVEN, mean = 20 standard deviation = 10 x= random variable

Q: Suppose thatX follows a chi-square distribution with 15 degrees of freedom. Use the ALEKS calculator…

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Q: If numerous samples of N = 15 are taken from a uniform distribution and a relative frequency…

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Q: researchers have determined that the population of pote normally distributed with a mean of 6.7-in…

A: Given: μ=6.7σ=0.9 At 50% confidence level, the critical value is ±0.6745. The range that you expect…

Q: The incidence of a certain type of chromosome defect inthe U.S. adult male population is believed to…

A: Given information: The believed incidence of a certain type of chromosome defect in the U.S. adult…

Q: 2. a. If the shaded area on the left-hand tail of t- distribution with sample of size n = 28 is…

A: The critical region indicate the region where the test statistic appear they can able to reject the…

Q: Suppose that between their first and second years in college, 400 students are randomly selected and…

A: Let y be the random variable such that the change in GPA from the first year to the second year. y¯:…

Q: Find the​ z-score that has 62.2​% of the​ distribution's area to its right

A: P(Z>z)=62.2% P(Z>z)=0.622 z=?

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.