Suppose x has a distribution with ? = 20 and ? = 14. If a random sample of size n = 73 is drawn, find ?x, ? x and P(20 ≤ x ≤ 22). (Round ? x to two decimal places and the probability to four decimal places.) ?x = ? x = P(20 ≤ x ≤ 22) =

Suppose x has a distribution with ? = 20 and ? = 14. If a random sample of size n = 73 is drawn, find ?x, ? x and P(20 ≤ x ≤ 22). (Round ? x to two decimal places and the probability to four decimal places.) ?x = ? x = P(20 ≤ x ≤ 22) =

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: help with questions number 1 and 2 please that goes along with picture... 1. The probability the…

A: As per central limit theorem standard normal variate z is given by z = x¯-μσn Here…

Q: An exam consists of 50 multiple-choice questions. Based on how much you studied, for any given…

A: Given: n = 50 and p = 0.70

Q: here are a total of 50 multiple-choice questions. Each question carries 2 marks and the full mark of…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Suppose that 64% of all voters prefer the Democratic candidate. Let X be the number of people who…

A: p=0.64n=37we have to find out the distribution of x and probability for the given data.

Q: 2. A researcher tossed a 1000 times and used the number of Heads to conclude that Pr(Head) = 0.5.…

A: Given: A researcher tossed a coin 1000 times and used the number of heads to conclude that…

Q: Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 = p2. Use the…

A: It is given that In a vote on the clean water bill, 46% of the 205 Democrats voted for the bill…

Q: The sample space contains 7As and 6 Bs. What is the probability that a randomly selected set of 3…

Q: The number of calculators, X, owned by students at a school has the following distribution. If a…

Q: If you generate 1000 random numbers in Excel using the "=RAND()" formula, what can you say about the…

A: Measure of central tendency is used to estimate the summary of the data set. Most commonly used…

Q: random sample is which of the following? A. Probability that an item is selected for the sample is…

A: Random sampling: A simple random sample of size n is collected from a large population where each…

Q: Suppose the probability is p = 0.4 that a person who purchases an instant lottery ticket wins money,…

A: Given that p =0.4,n=24

Q: Assume that random guesses are made for 6 multiple-choice questions on a test with 5 choices for…

A: Givensample size(n)=6p=15=0.20 (i.e., 1 correct choice from 5 choices)Let "x" be the…

Q: A professor using an open source introductory statistics book predicas that 10% of the students will…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Find the coefficient of vaxiance of freg. distribution Givem that its mean is 120, mode is 123 f…

A: Given : Mean = 120 Mode = 123 Karlpearson's coeff. of skewness = -3

Q: The time it takes a kidney stone to pass is 12 days and the standard deviation is 6 days. Suppose…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: Recently, a nurse commented that when a patient calls the medical advice line claiming to have the…

A: Givensample size(n)=25p=4%=0.04

Q: Туре Public Private T2 Total Elementary 36,161 4,073 40,234 High school L2 14,877 1,103 15,980…

A: Here Given Table PUBLIC PRIVATE TOTAL ELEMENTRY(L1) 36161 4073 40234 HIGH SCHOOL(L2) 14877…

Q: The accompanying table describes results from groups of 8 births from 8 different sets of parents.…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: The tickets in a box have an average value of 75, and the SD is 10. Twenty-five draws are made at…

Q: A poll is given, showing 46% are in favor of a new building project. Let X be the number of people…

A: The question is about discrete prob. distribution Given : Prop. of people in favor of a new building…

Q: The Variance of the Binomial distribution is... O a.u O b. npq O d. None of these. O e.A

A: The Variance of the Binomial distribution is =npq

Q: - 50. The letters of the word 'article' are arrange at random. Find the probability that the vowels…

Q: Let S be a sample space. Suppose A and B are two independent events on S. Show that the events A°…

Q: Let X be the number of red balls drawn from a basket of 47 red and 53 black balls. Find a…

A: Given that Red ball = 47 Black ball= 53

Q: If the sample space is C = C1UC2 and if P(C1) = 0.72 and P(C2) = 0.45, find Q.2. P(C1NC2.

A: Prabability of the sample space

Q: casino. The numbers are:- a a a a a a for a game to win a jackpot in a a - - - 2 4 2 6 3 4 12 4…

Q: A student wishes to see if at her school the proportion of underclassmen who do not have have a job…

A: Given,n1=257 , x1=55n2=288 , x2=45p^1=x1n1p^1=55257=0.21401p^2=x2n2p^2=45288=0.15625pooled…

Q: d. Between 1 and 9 (including 1 and 9) of them live in poverty.

A: We have given the following information Population proportion = 0.08 Sample = 50

Q: Suppose X~ N(97, 2.6262). Use this distribution to help you answer the following question: What is…

A: X¯ ~N(97,2.6262)

Q: Is the statement below true or false? The distribution of the sample mean, x, will be normally…

A: Here For sampling Distribution As per Central limit theorem the Distribution of sample mean will…

Q: he population mean and standard deviation are given below. Find the required probability and…

Q: 2. It is the set of possible outcomes in every experiment. A. Probability B. Space 3. It is an event…

A: 2.Correct option (c)

Q: We choose 2 balls at random from an urn containing 8 white, 4 black and 2 orange. Suppose we receive…

A: Given:Total balls = 8 white + 4 black + 2 orange = 14 balls.Gains for black ball = $2.Loss for white…

Q: Suppose you are taking a multiple-choice test with c choices for each question. In answering a…

A: Given: The number of choices for each MCQ question is c. The probability of knowing the answer is p.…

Q: Which of the following values cannot be probabilities? 3/5, 5/3, √2, 1.45, 1, -0.49, 0.03, 0 Select…

A: GIVEN DATA, we have to answer that which data are not probabilities.35,53,2,1.45,1,-0.49,0.03,0

Q: List all the elements in the sample space for the set S = {x|7x − 35 ≥ 0 and x < 2}.

Q: Let X be the sum of the roll of two fair six-sided dice. Find P[X = 8 | X = 7 or X = 8] A. 1/9 B.…

A: In general, there are 36 possible outcomes when rolled a pair of balanced dice.

Q: A weight-loss clinic advertised that last month its patients, on average, lost 7 lbs. Assuming that…

A: It is given that in the last month, the average weight lost is 7 lbs and the objective is to choose…

Q: 3) Let X be random variable represents the weights of the vehicles follows the normal distribution…

A: The variable X follows normal distribution with μ=9099 kg and σ=19 kg.

Q: The psychologists were expecting to get an equal number of children in each category and wanted to…

A: Given information: A team of psychologists were interested in the distribution of the children on…

Q: In a study, it was found that 42.5% of the population drink soda at least once a day. You randomly…

A: It is an important part of statistics. It is widely used.

Q: Review 5. 4. Sebastian has a bucket of golf balls. The table shows the number of golf balls of each…

A: Total No. of golf balls in bucket=41 PPink=441PWhite=1141POrange=841PGreen=1841 Statement 1: False,…

Q: Alcohol If four different high school drivers are randomly selected, find the they all texted while…

Question

100%

Suppose x has a distribution with ? = 20 and ? = 14.

If a random sample of size n = 73 is drawn, find ?_x, ?_x and P(20 ≤ x ≤ 22). (Round ?_x to two decimal places and the probability to four decimal places.)

?_x =

P(20 ≤ x ≤ 22) =

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Ex 4 and 5
A poll is given, showing 51% are in favor of a new building project. Let X be the number of people who favor the new building project when 28 people are chosen at random. a. What is the distribution of X? X - ? ✓ Please show the following answers to 4 decimal places. b. What is the probability that exactly 11 people out of 28 favor the new building project? c. What is the probability that at least 11 people out of 28 favor the new building project? d. What is the probability that more than 11 people out of 28 favor the new building project? e. What is the probability that between 7 and 16 (including 7 and 16) people out 28 favor the new building project?
The set S = {a, b, c, d} is the sample space for an experiment. Find the probability that outcome c occurs if it is known that outcome d is twice as likely to occur as outcome c, outcomecis twice as likely to occur as outcome b and outcome b is twice as likely to occur as outcome a. O A. O B. OD. O E. Cannot be determined.
Solve for the p-value.
A confidence interval for a mean is (−13,14)-13,14. This interval would be wider if A.)The sample mean was larger or the variability of the data was larger. B.) The variability of the data was larger, or the investigator wanted to be more confident. C.) The investigator wanted to be more confident of their results, or there was more information. D.) The variability of the data was small, or the sample mean was larger. E.) None of the above.
. In an organization consisting of 5 women and 10 men, a committee of four individuals is to be selected at random from the 15 people. Find the distribution of the random variable, X = Number of women on the committee.
The probability that a student in the probability and statistics course will make a marking error on a question on a multiple-choice test is 0.1. If there are ten questions and these are marked independently, the probability that no errors are commented is:
If the sample space is C = C1UC2 and if P(C1) = 0.62 and P(C2) = 0.55, find Q.2. P(C1NC2).
67% of LaGuardia students are female. A random sample of 6 students is to be selected. Let the random variable X be the number of female students in a sample. a. What is the probability that out of 6 randomly selected students at most 2 are male? b. Find the average number of female students per sample if a large number of random samples of 20 students were selected.
Using the data attached, compute x-bar: 1. Define the random variable x-bar in words 2. state the estimated distribution to use. Use both words and symbols.
2. A number is chosen at random from 1 to 10. Find the probability of selecting a multiple of 2. 3. Two dice are roll ed, fînd the probability that the sum is a Equai to 1 b Equal to 5 C. Less than 10
Suppose a population with a mean of 100 and a variance of 900 was given. The central limit theorem was applied with a sample size ?? ≥ 25. A random sample of size ?? = 30 wasobtained. Find the: i. mean and variance of sampling distribution for sample means. ii. probability that 96 ≤ ??̅≤ 110. iii. probability that ??̅≤ 107.