a. What is the distribution of X? X-U Suppose that 38 children from the school are surveyed. Then the sampling distribution is b. What is the distribution of a? - N( c. What is the probability that the average of 38 children will be between 8 and 8.6 years old?

Q: Given the population 1,2,3,4,5 and a sample size of three, create a frequency and probability…

A: Given population is 1,2,3,4,5 N=No. of samples in population=5 Select a sample of size=n=3

Q: How is a sampling distribution of a population data set formed? O When samples of different sizes…

A: Given that, How is a sampling distribution of a population data set formed?

Q: A national caterer determined that 87% of the people who sampled their food said that it was…

A: Given information Sample proportion p-hat = 0.87 Sample size (n) = 144 Population size (N) = 5000

Q: Suppose x has a distribution with ? = 80 and ? = 8. Find P(76 ≤ x ≤ 81). (Round your answer to four…

A: Given problem Given that   Mean = 80 Standard deviation = 8  P( 76 ≤ x ≤ 81 ) = ?

Q: (c) What would the sampling distribution of the sample mean for a random sample of size n=30 years…

A:

Q: What do you observe about the spread of the sampling distributions? Does it depend on n? Does this…

A: Here we want to know about the spread of the sampling distribution.

Q: ind the mean of the set of data below and construct a sampling distribution, rithout replacement and…

A: Given :  The data is given  5, 8, 11, 14, 17, 20, 23 It is asked to construct the 5 samples at a…

Q: a. What is the distribution of X? X N( 62 11 b. What is the distribution of ? N( c. If a single…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

Q: a. What is the distribution of X? X - N b. What is the distribution of T? T - N( c. What is the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Find the value of P if the mean of the following distribution is 4 2 3 f P. 1,

A:

Q: Consider a population of five families with the following data representing the number of children…

A:

Q: A restaurant finds that their expense per customer has a distribution that is right skewed with μ =…

A: It is given that, The expense per customer has a distribution that is right skewed with μ = $8.20…

Q: a. What is the distribution of X? X - N( b. What is the distribution of ? - N c. What is the…

A: It is given that Mean of X = 41 SD of X = 22 Sample size n = 17 Note : According to our guidelines…

Q: Let N have a Pois (4) distribution. What is P(N = 4)?

A: Given that N is a random variable which follows Poisson Distribution. Note that the Poisson is a…

Q: Formulate is it true? The sampling distribution of r = .8 becomes normal as N increases.

A: Central limit Theorem: If the sample size increases or the distribution of the population follows…

Q: 7. The sampling distribution refers to: A. the distribution of the various sample sizes which might…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: b) Construct the sampling (frequency) distribution c) Compute the mean of the sampling distribution…

A: Given Information: Samples=(2,4,5,9,10) sample size to be selected=3

Q: a. What is the distribution of ? a - N( b. For the group of 44, find the probability that the…

A: a. The mean is 167, standard deviation is 28. The sample size is 44. Let x¯ represents the average…

Q: Which statement(s) is/are FALSE? A. The mean of the sampling distribution of the sample mean is…

A: A. The mean of sampling distribution of the sample mean is equal to the sample mean.

Q: 3.) Pasig City is 3rd richest city in the Philippines behind Makati City and Quezon City. If we…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The sampling distribution of p, the proportion of groceries thrown out by your sample respondents is…

A: Solution-: Given: n=540,p=0.12 (Or 12%) we choose correct option in the following (a) not normal…

Q: a. What is the distribution of X? X- U then the sampling distribution is b. Suppose that 35 classes…

A: a) Given: a = 0 b = 60 Therefore, X ~ U (0,60)

Q: a. What is the distribution of ¤? ¤ - N( b. For the group of 12, find the probability that the…

A: a. The mean is 160, standard deviation is 22, and sample size is 12. The distribution of x¯ follows…

Q: How hard is it to reach a businessperson by phone? Let p be the proportion of calls to…

A: Solution: 4. a. From the given information, confidence level is 0.80 and E=0.03.

Q: 4. Given n > 30 and o is known. What is the appropriate distribution? C.p D. r B. t

A: Solution: 4. The conditions for using Z distribution are: Sample size should be large. Population…

Q: The proportion of twins born in a town is p = 0.12. Suppose we randomly select 100 women from this…

A: Given  p=0.12 , n=100

Q: Given a normal distribution with μ=101 and σ=25​, and given you select a sample of n=25​, What is…

A:

Q: Number 2

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: a. What is the distribution of X? X - N( b. What is the distribution of ? - N( c. What is the…

A: mu = 4 s = 0.7 n = 18

Q: 11. Consider the prices has a normal distribution Price mean%3D 75 Price S.D = 8 What is the…

A:

Q: The proportion of all US adults who eat popcorn when they go to the movie theater is p= 0.87. A…

A: We have to find out given correct answer..

Q: The mean of the sampling distribution of means, µã =µ i.e., E(X)=u

A:

Q: When n=64 whales are randomy selected, what would be the standard error of the sampling…

A: Given,S2=16 MTx¯=18 MTn=64

Q: a. How many students got a score of 26 or below? b. What points divides the distribution such that…

A: The median (Q2) value divides the distribution such that half is below it and half is above. The…

Q: a. What is the distribution of X? X N b. What is the distribution of I? I - N( c. For a single…

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: The winner of the 2008–2009 National Basketball Association (NBA) championship was the Los Angeles…

A: Note: Since, your question has more than 3 parts, we have solved only the first three subparts for…

Q: Q15. The sampling distribution of the mean is the hypothetical distribution of means from all…

A: Sampling distribution of means: For a given sample size n, random samples are repeatedly taken and…

Q: A population distribution has o =6. What position in this distribution is identified bya z-score = +…

A:

Q: The following are the salary of random workers. Suppose samples of size 3 are taken from this…

A: INTRODUCTION :  Sampling Distribution :  The set of the values of the statistic so obtained for…

Q: Suppose x has a distribution with ? = 76 and ? = 8. Find P(72 ≤ x ≤ 77). (Round your answer to four…

A: In question, Given that, X has distribution with mean 76 and standard deviation of 8. Then we'll…

Q: 4. In Student's t-distribution, what is the nd mom А. 5 В. 24 С. 25 D. 26

A: (4) We have given that, Degree of freedom (df) = 25  Then,  We will find the sample size of students…

Q: If sample size is n = 30 or greater, the distribution of sample means will also be normally shaped,…

A: We want to tell you if the sample size is n=30 or greater than the sample mean will also be normal…

Q: 4 In a positively skewed distribution, which of the following is the correct statement? A The…

A: To find: In a positively skewed distribution, which of the following is the correct statement?

Q: Find the are below 13 for a N(15,5) distribution

A:

Q: a. What is the distribution of X? X~U( Suppose that 49 children from the school are surveyed. Then…

A: a. Let X be the age of students at George Washington Elementary school which follows uniform…

Q: The sampling distribution of the mean depends on the sample size. O False O true

A: t distribution will follow on sample size less than 30 and sample size equal or greater than 30 then…

Q: a. What is the distribution of X? X- U b. Suppose that 36 people are surveyed. What is the…

A: The mean is given byx =a +b2x =122 = 6The standard deviation is given byσ = (b-a)212σ = (12)212 =…

Q: a. What is the distribution of ? T - N( b. For the group of 14, find the probability that the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: a. What is the distribution of ¤? ¤ ~ N( b. For the group of 10, find the probability that the…

A: Normal distribution is also known as the Gaussian distribution . It is widely used in statistics .

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.