omly selected person aged 20 years or older is male and jogs? Would it be unusual to randomly sel r older who is male and jogs?

Q: A research center claims that 31% of adults in a certain oountry would travel into space on a…

A:

Q: A samp s chosen. It was found that among engineering majors, 70% are male. nd among English majors,…

A: Q

Q: A Social Psychologist is interested in find difference in the anxiety sensitivity of M (Gen X). He…

A: This is a paired test,

Q: A simple random sample of size n = 33 is obtained from a population with µ = 82 and σ = 23. What is…

A: Given that: Mean (µ) = 82 Standard deviation (σ) = 23 Sample size (n) = 33 X~N (82, 23)

Q: in a random sample of 500 police officers how many have an annual salary of at least $58,750

A: Let X denote the no.of police officer salaries and it follows normal distribution with mean of…

Q: In one section of STAT 1811 course, there are 10 girls and 20 boys. What Is the probablllty that In…

A: From the provided information, There are 10 girls and 20 boys in one section of STAT 1811 course.…

Q: Assume that the box contains 9 balls: 2 red, 4 blue, and 3 white. Balls are drawn in succession…

A: (2) A box contains 9 balls in which there are 2 red, 4 blue, and 3 white. That is,…

Q: 2. Gerald buys a bag of 7,500 assorted beads online. A random sample of 150 beads contains 17 red…

A: Given that in a random sample of 150 beads there are 17 red beads.  So the probability of getting a…

Q: (b) The number of red balls in a sample of 8 balls chosen at random from a box contains 30 balls of…

A: We have to find the mean and variance of Hypergeometric distribution.

Q: A recent year was randomly picked from. Researchers conducted a study to find out if there is a…

A: Solution: It is given that, at Cabrillo College, there were 2051 Hispanic students out of a total of…

Q: A research center claims that 28​% of adults in a certain country would travel into space on a…

A:

Q: 20. Find the z-score that corresponds to P15?

A: Here we need to compute the z score corresponding to the 15th percentile.

Q: In a certain liberal arts collège with about 10,000 students, 57% are males. two students from this…

A: Given that the probability of males is 57% or 0.57. The probability of females is 1-0.57=0.43   Two…

Q: In a random sample of 400 residents, 220 support a 0.3% sales tax increase to build a new high…

A: Here, the null hypothesis is that majority of local residents support the tax increase. The…

Q: selected at random didn't pass the test is:

A: Here use basic rule of probability multiplication

Q: In a random sample of 500 persons in the city A, 300 are found to be consumers of tea. In another…

A:

Q: s published that 45% of college seniors want to learn more sbout ere is no differene een before aud…

A: Given: Sample size, n=65 No. of seniors want to learn more about financial literacy, x=35

Q: Suppose that seven hundred twenty-five residents were randomly selected and asked whether they have…

A: The objective is to find out the probability that the resident is a male or has covid vaccine…

Q: Assume that 1500 births are randomly selected and 760 of the births are girls. Use subjective…

A: Given Information: 1500 births are randomly selected and 760 of the births are girls. Use…

Q: claim a random sample of N = 15 parts will be taken and if more than two defective parts are found

A: Given: sample size, n = 15 p = 10% = 0.10 x =2 more than two defective parts are found P(X > 2)

Q: Back to school, again Based on the 74% national reten-tion rate described in Exercise 23, does a…

A: Consider that p is national retention rate. The standard normal variable Z is defined as, z = (p̂ –…

Q: ur out of five Filipinos under the age of 30 eat rice for breakfast. If a ndom sample of 15 adults…

A: We have given that  Sample size n= 15  Success of probability = 4/5= 0.80 X~binomial ( n,p)

Q: Assume that the box contains 5 balls: 1 red, 1 yellow, and 3 green. Balls are drawn in succession…

A: The red ball can be withdrawn in 5 types of withdrawals. [First / second / third / fourth / fifth…

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: In SPSS , for a one sample t test, to find your p value for a one tailed test, multiply the p value…

A: Given statement, for a one sample t test, to find your p value for a one tailed test, multiply the p…

Q: From a team of 27 baseball players a group of 6 is to be randomly selected for steroid testing.  In…

A:

Q: 2. A television channel claims that 40% of the population who watch TV patronize their TV channel.…

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

Q: A state executive claims that the average number of acres in western Pennsylvania state parks is…

A:

Q: A builder claims that bidets are installed in 70% of all homes being constructed today in suburban…

A: From the given claim, Null Hypothesis: H0: p=0.75. Alternative Hypothesis: H1: p≠0.75 Given…

Q: The Excellent Drug Company claims its aspirin tablets will relieve headaches faster than any oth…

A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…

Q: Two cards are drawn at random without replacement from an ordinary deck of 52 cards. Let X be the…

A: Given: X = number of hearts Y = number of red cards n (total) = 52 n (hearts) = 13 n (red) = 26…

Q: according to a report , 40 %people are afraid of dogs  1 in a simple random sanpling if 50 people,…

A: Solution: From the given information, probability of people afraid of dogs is 0.40 and n=50.

Q: According to a local chamber of commerce, in 1993, 5.9% of local area residents owned more than five…

A: State the hypotheses. That is, there is no evidence that the percentage of the local area residents…

Q: It is known that 30% of adult females are experiencing sleep disorder. If 17 adult females are…

A:

Q: A professor claims that 70% of College of Business graduates earn more than $45,000 per year. In a…

A: Given that,  70% of college graduates earn more than $45000 per year. In a random sample of 300…

Q: A study was commissioned to find t the residents in certain town. The s random sample of 114…

A:

Q: 59% of students entering four-year colleges receive a degree within six years. Is this percent…

A: The random variable students who play intramural sports follows normal distribution. We have to test…

Q: Assume that the box contains 7 balls: 4 white, 2 green, and 1 blue. Balls are drawn in succession…

A:

Q: In a box containing 8 red balls, 8 green balls and 8 blue balls where 3 balls will be drawn in…

A: Here given,  In a box containing 8 red balls, 8 green balls and 8 blue balls where 3 balls will be…

Q: s consists of 14 males and professor selects names from the dom sampling, bability that the first…

A:

Q: 11 A spinner is divided into eight equal regions as showr below. Yellow White Green Black Yellow…

A: As per given by the question, there are given eight equal part divided spinner. The name eight part…

Q: rom the U.S. Census Bureau’s American Community Survey in 2019 it was found that 33.13% of United…

A: since there are multiple parts, first three subparts are answered. kindly repost for more help .

Q: A professional basketball star who had a reputation for being a poor free throw shooter made 5210 of…

A: For case one the required proportion P is calculated as: P=Number of free throws that were made…

Q: 60% of students entering four-year colleges receive a degree within six years. Is this percent…

A: a. For this study, we should use one sample proportion z test. b. The null and alternative…

Q: the proba bab ity that when five consumers are randomly selected, exactly two of them are…

A:

Q: Approximately 8% of males experience red-green color blindness. Suppose a random sample of 200 men…

A: Given that, The population proportion of 8% males who experience re-green color blindness.

Q: Among 22- to 27-year-olds, 39% say they have used a computer while under the influence of alcohol.…

A: Among 22- to 27-year-olds, 39% say they have used a computer while under the influence of alcohol.…

Q: A serving for brand recognition is done and it is determined that 68% of consumers have heard of…

A: Solution: Let X be the number of consumers who recognize the dull computer company and n be the…

Q: A professional basketball star who had a reputation for being a poor free throw shooter made 5236 of…

A: (a). Check whether the proportion of successful free throws P from the simulation reasonably close…

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.