3. In a Harris poll of 2036 adults, 40% said that they prefer to get their news online. Construct a 95% confidence interval estimate of the percentage of adults who say that they prefer to get their news online. Can we safely say that fewer than 50% of adults prefer to get their news online?

Q: It is known that the mean weight of students at Cavendish University is 72 kg with a standard…

A: given data normal distributionμ = 72 kgσ = 5 kgP(x=75 kg) = ?

Q: The time X is takes to reboot a certain system has gamma distribution with E(X)=3 min and Var(X)…

A: The time X is takes to reboot a certain system has gamma distribution with E(X)=3 min and Var(X)…

Q: Develop a probability distribution for the number of boats sold daily (show your answer in a table)…

A:

Q: In a lottery game, a player picks 5 numbers from 1 to 46 . If 4 of the 5 numbers match those drawn,…

A: In a lottery game, a player picks 5 numbers from 1 to 46.   If 4 of the 5 numbers match those drawn,…

Q: The length of human gestation is well-approximated by a normal distribution with mean days and…

A: a) The code for generating the corresponding graph of pdf and pdf for the given information # Set…

Q: A middle school basketball team plays 20 games during the season. In how many ways can it end the…

A: given data  20 games during a season.  no. of end season with 10 wins, 9 loses and 1 tie = ?

Q: QUESTION TWO A. The following data set shows the various types of types of cars at a local…

A: Since you’ve posted multiple questions. As per our guidelines I can solve only first question.…

Q: Suppose that the weight of a particular hand weight is advertised to be 5 pounds, but it can…

A: Given: a = 4.9 b = 5.5 Formula Used: Standard deviation = b-a12

Q: A person owns a total of two umbrellas. The person regularly moves between their home and office.…

A:

Q: if we have D=120 -(7/8)T what is the slope

A: The given equation is D=120-78T.

Q: an urn contains 10 white and 12 red chips. Two chips are drawn  at random and, without looking at…

A: Given that, The event W is selecting the white chip The event R is the selecting the red chip…

Q: a) In a random sample of 16 chronically stressed patients, what is the probability the sample mean…

A:

Q: 2. Assume you are taking two courses this semester (A and B). The probability that you will pass…

A: Given :  Pass course A  P(A) = 0.835  Pass both courses  P(A and B) = 0.276  Pass at least one…

Q: Scores on a 100-point final exam administered to all applied calculus classes at a large university…

A: Given that, The random variable X is the scores on a 100-point final exam administered to all…

Q: 4. Suppose that earthquakes occur in the western portion of the United States in accordance with…

A: Given information  Earthquakes occur in the western portion of the United states at at a rate of λ=2…

Q: For a Normal random variable X, with E(X)= 3, Var(X) = 4 Must use Standard Normal Distribuiton Table…

A: Probability theory provides a set of powerful tools for analyzing and predicting the behavior of…

Q: help with question b)

A: Using Bayes' formula, we have: P(Y=0|X=25) = f(25|0)P(0)/f(25) where f(25) is the marginal density…

Q: 13. P(purple then yellow) 15. P(two purples)

A: Answer  Red crayons =8 purple crayons =14 yellow crayons =6 green crayons =4

Q: Approximately one-third of Canadians have some form of privately-covered long-term disability…

A: From the provided information, Sample size (n) = 165 Approximately one-third of Canadians have some…

Q: 1. The selling price of various homes in a community follow the normal distribution with u (mean) =…

A: Given, Mean(μ)=$276,000 Standard deviation(σ)=$32,000

Q: Two cards are drawn in succession and without replacement from a deck of 52 cards. Find the…

A: Given that, Two cards are drawn in succession and without replacement from a deck of 52 cards.

Q: An outcome is considered unusual if it is more than two standard deviations from the mea A survey…

A: given data p( customers recognizing the Dull Computer Company) = p = 0.57n = 600x = no. of customers…

Q: If I $6 to play a spinner game and the chances of winning $1 dollar is 50% and the chances of…

A: Answer:- Let , X be a random variable represents the value of winning money ($). According to the…

Q: Let Continous Random Variables, X has the density function f(x) = [-5x +9 for 04x41 Lo else where…

A: f(x)=-5x+9 ; 0≤x≤1

Q: ealth of a person's lungs is the amount of air a person can exhale under force n one second. This is…

A: Solution: Given information: n=58 Sample size  μ=2.1 Population mean σ=0.5 Population standard…

Q: 8. You randomly draw 10 cards from a deck of 52playing cards without replacing the card between…

A: There are 52 card in the deck in which they divided into two color i.e red(26) and black (26). These…

Q: 5.1-4. Let X have the pdf f(x)= xe-/2, 0 < x < 00. Find the pdf of Y = X²

A: Given: Let X have the probability density function fx=xe-x2/2, 0&lt;x&lt;∞

Q: Birds arrive at a feeding table independently, at an average rate of six per hour. Find the…

A: Given that, The random variable X is birds arrive at the feeding table. The arrival of birds is…

Q: Let’s imagine a hand consisting of 1 card drawn from a non-standard 64-card deck with flowers on the…

A: In this problem, we are dealing with a non-standard deck of 64 cards, consisting of 4 suits with 16…

Q: Combination vs. Permutation State if each scenario involves a permutation or a combination. Then…

A: A group of 10 people are going to race. Top 5 finishers advance to finals.we have to identify…

Q: The Security & Trust Bank employs 4 tellers to serve its customers. Customers arrive according to a…

A: A. To evaluate how well the guidelines will be satisfied a year from now with an increased arrival…

Q: A population of values has a normal distribution with μ=116.7�=116.7 and σ=83.8�=83.8. You intend to…

A: From the provided information, Mean (µ) = 116.7 Standard deviation (σ) = 83.8 X~N (116.7, 83.8)…

Q: Given that z is a standard normal random variable, find z for each situation. (Round your answers to…

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

Q: -4.36 Sq-56.0% SS 76501718347 60109046053 17.02 -0.26 0.798 R-Sq (adj) -54.6% MS 25500572782…

A: *Answer:

Q: Suppose that in order to save money, the Golden Eagles Nest dining area is considering limiting the…

A:

Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

A: From the provided information, Mean (µ) = 54.6 Standard deviation (σ) = 3.2 X~N (54.6, 3.2)

Q: What are some common types of biases that can affect statistical analysis, and how can they be…

A: There are several types of biases that can affect statistical analysis. Here are a few common types:

Q: A company sells regular hamburgers as well as a larger burger. Either type can include cheese,…

A: Given Information: The type of hamburgers is two (i.e. regular and larger). The type of extras is…

Q: 7.7.3 Let X₁,. X be a set of independent random variables with a U(0, 0) distribution, and let T=…

A: Given that X1, X2...Xn be the uniform distribution (0,θ)  T=max(X1..Xn) We have to find  a ..…

Q: Seventy independent messages are sent from an electronic transmission center. Messages are processed…

A: In the field of electronic communication, it is essential to ensure that messages are transmitted…

Q: A study completed in 2018 found that approximately 1 out of every 20 people have walked out of a…

A: given data P(walk out restaurant without paying) = 120∴ p = 0.05sample size (n) = 150

Q: organization, the proportion of people who are satisfied with the way things are going in their…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Mackenzie and Kevin are designing a basketball launcher. When they launch a basketball from the top…

A: Given that Sample size =2 Probability of success=0.08 Let X denotes the number of successful shots…

Q: What is the value of EVUII? Probability Sell Company Form Joint Venture Sell Software on own Submit…

A: Please find the explanation below. Here we should find the value of EVUII

Q: A corporation owns several companies. The planner for the corporation believes the amount spent on…

A: From the provided information, The data values are as follow: x y 12.5 148 3.5 26 21.4 120…

Q: The average life of a battery is advertised as 92.0 hours. A quality control check found that the…

A: It is given that the mean is 92.0 and the standard deviation is 15.0.

Q: Assume that a procedure yields a binomial distribution with n=1167 trials and the probability of…

A: given data , n=1167p=0.73q=1-p=1-0.73=0.27we have to find out the mean and standard deviation for…

Q: leading magazine (like Barron's) reported at one time that the average number of weeks an individual…

A: According to the given information in this question We need to find the following probability

Q: According to an​ airline, a particular flight is on time 92​% of the time. Suppose 32 flights are…

A: Given information- We have given a problem of the binomial distribution. Probability of a particular…

Q: Three applications for admission to a local university are checked, and it is determined whether…

A: We have given, 3 applications for addmission. Each applicant is male or female. And we have to find,…