b) It is known that 25 percent of new hiring employees change their jobs in the first year . Assuming that this claim is true, and Let X represents the number of employees who change his jobs in the first year . A random sample of 18 is selected .use Table of Binomial in “Statistical Tables” . Find the mean of X.

Q: The personal identification numbers (PINs) for automatic teller machines (ATMs) usually consist of…

A: Solution: There are 10 digits e.g 0,1,....,9  And we have The ATM pin can also be a number starting…

Q: a recent survey releved that 54% of 18 to 34 year old , 33% of 35 to 54 year old and 15% those…

A:

Q: . The management of a company finds that 27% of the administrative assistants hired are…

A: GivenThe percentage of administrative assistants hired are unsatisfactory =27%The percentage of…

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: State the null and alternative hypotheses. That is, there is no evidence to conclude that color…

Q: c. Use the sample space to determine the exact probability that • Nobody gets the correct phone. •…

A: Given data: The sample space for the case is provided as: S=123, 132, 213, 231, 312, 321 where, 123…

Q: 3% of a country’s voters are dissatisfied with the direction of the government. Suppose a SRS of 50…

A: a) Let X is a random variable which follows Binomial distribution with n = 50 and p = 0.53.…

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: It is given that p = 0.24, n = 59 and  r = 11.

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: z test are used to measure the mean significance between the sample and population. The z test is…

Q: If a class has 8 boys and 10 girls, determine the following ( assuming that the order of selection…

A: In question, Given that If a class has 8 boys and 10 girls. Then we'll find,  (a). The number of…

Q: 13. Based on the Harris poll, among adults who regret getting tattoos, 20% said that they were too…

A: Number of adults(n)=7Percentage of adults who says they were too young when they got there…

Q: What is your favorite color? A large survey of countries, including the United States, China,…

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

Q: Suppose an unfair, standard six-sided die is tossed and the probability of tossing a three is 0.21.…

A: Given that an unfair, standard six-sided die is tossed. The probability of tossing a three is 0.21…

Q: 5. The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-time,…

A: Total no. of full-time, first-time freshmen on whom data is the data is collectedThe question topic…

Q: 4. A washing machine in a laundromat breaks down an average of three times per month. a) Find the…

A:

Q: 35. In a very hotly fought battle, DigeL LLedne ns eeloneupert rebno bnooe 76% at ieast of…

A:

Q: A total of 100 draws are being made at random with replacement from the box (1, 7, 9, 15) Estimate…

A:

Q: 15. On average two new checking accounts are opened per day at the Farmer's Bank Whe likelihood that…

A: Average number of accounts opened in a day = 2 Let X denotes the number of accounts opened  in any…

Q: If there are 10 people in a room, what is the probability that at least 2 of them share a birthday…

A: Given information: The total number of people in the room is 10. The total number of days in the…

Q: A. Both partners were born on April 1. B. Both partners celebrated their birthday on the same day of…

A:

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: Based on the given information, the level of significance is ꭤ=0.05. State the appropriate…

Q: Consider a multiple­choice examination with 50 questions. Each question has four possible answers.…

A:

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 5 adults are randomly selected,…

A: Let "X" be the adults who believe in reincarnation.

Q: Does this information imply that the color preference of all college students is different (either…

A:

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A:

Q: 13. Final: Assume choosing eight randomly selected ColorSmart-5000 televisions that last five years…

A: Given information : choosing eight randomly selected ColorSmart-5000 televisions that last five…

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: Correct option: Option 1

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A:

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A:

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: Given,n=60x=9p^=xn=960=0.15α=0.05H0:p=0.24H1:p≠0.24

Q: Suppose all people can be classified as either left-handed or right-handed. According to the current…

A: The objective of the question is to determine the proportion of people who are left-handed, the…

Q: If the variance of a data set is correctly computed with the formula using n - 1 in the denominator,…

A: If the variance of a data set is correctly computed with the formula using n - 1 in the denominator,…

Q: The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-time,…

A: Probability that an incoming first-time, full-time freshmen reply "yes" to legal marital status of…

Q: A poll was conducted of 2538 Americans who were employed full time about the gender gap in pay. Half…

A: Determine the probability that a person who participated in the survey is selected at random, what…

Q: Suppose a population has 26 members identified with the letters A through Z.  Assume person A gets…

A: There are 26 members in the population identified with the letters A to Z The person A is selected…

Q: A work team consists of 7 females and 5 males. Only three members of this team can be selected to…

A: Answer : From the given data, A work team consists of 7 females and 5 males . three members of this…

Q: A multiple-choice examination has 20 questions, each with four possible answers, only one of which…

A: If X~Binomial(n,p), then the pmf of X is : P(X=x)=nxpx1-pn-x;x=0,1,…,n0;otherwise

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A: Given that : P = 24%  i.e.  0.24 Sample size (n) = 57 r = 7  P0 = r / n Now  by using one sample…

Q: What is your favorite color? A large survey of countries, including the United States, China,…

A:

Q: In a driver-side "star scoring system for crash-testing new cars, each crash-tested car is given a…

A: Given N=98

Q: In a three-digit lottery, each of the three digits is supposed to have the same probability of…

A: The observed frequency distribution of digits on the lottery is given as follows:DigitObserved…

Q: In a survey of 1200 people, 80 indicated they were going to buy a new car, 70 said they were going…

A:

Q: 2. The number of hours that employees work per week in Anteater company is known to follow a normal…

A: 2)GivenMean(μ)=40standard deviation(σ)=5

Q: In a memory test, the test subjects are given a large number and are asked to memorize it.…

A: p=0.80, n=625

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.