() Percentage of viewers who are 18 to 34 and prefer videos on a mobile or laptop device. Percentage of vievers (d) Percentage of viewers given they are 18 to 34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage of viewers

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: Given that, From the provided information, The hypotheses can be constructed as: Null hypothesis:…

Q: In the startup world, one of the biggest issues that a young entrepreneur faces is the ability to…

A:

Q: The recidivism rate for convicted sex offenders is 13%. A warden suspects that this percent is lower…

A: From the given information, the claim is the recidivism rate for convicted sex offenders is less…

Q: Working at home: According to the U.S. Census Bureau, 42% of men who worked at home were college…

A: Given Data,                   n=514                   x=158

Q: (g) The number of students who received grades of 75 or higher. (h) The number of students who…

A: We have given the data of 80  students.  Note: According to Bartleby expert guidelines, we can…

Q: d. What percent of students score between 70 and 90? e. What percent of students score between 95…

A: Let X be random variable of scores for a standardized test X~ Normal(84, 36)   d) To find:…

Q: Fifteen different video games showing alcohol use were observed. The duration times of alcohol use…

A: Degrees of freedom: df denotes the sample size minus 1. That is, df=n-1

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: Given that I sample 110 men and 40% own cats. So  40% of 110=0.40×110=44I sample 170 women, and 65%…

Q: What proportion of students are accepted into Law School? You survey a random sample of 525 Law…

A:

Q: In a population with σ = 5, a score of X = 46 corresponds to a z-score of z = +0.40. What is the…

A: Solution-: Given: X=46, σ=5, z-score=0.40 We find population mean (μ)=?

Q: What is the p-value?

A:

Q: Before an increase in excise duty on tea, 400 people out of a sample of 500 persons were found to be…

A: Solution: Given information: n1= 500  Sample size of people before increase in excise dutyn2=600…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: We have to find given proportion.

Q: Average marks in Statistics of 10 students of a class was 68. A new student took admission with 72…

A:

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: It is given that 45% of 150 men have their own cats and 10% of 50 women have their own cats. The…

Q: Claim: Fewer than 9292​% of adults have a cell phone. In a reputable poll of 10151015 ​adults,…

A: It is given that n =1015 and p hat is 0.82.

Q: Suppose John has a torn tendon and is facing surgery to repair it. The surgeon explains the risks to…

A: From the provided information, Probability of infection occurs is P(I) = 3% =0.03 Probability of…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: p1= 0.8, n1=170 p2 = 0.4, n2 =50

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: Denote p1 is true proportion of male who won cat and p2 is the true proportions female who won cat…

Q: The table below shows the number of people for three different race groups who were shot by police…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: a) Given that the confidence level is 90%. Significance level is 0.10 From the standard normal…

Q: 4. Sophia scored at the 10th percentile (P10) on exam 1. She claims that this means she outperformed…

A: Given, Sophia scored at the 10th percentile on exam.

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: As per our company guidelines we are supposed to answer only first question. Kindly repost other…

Q: a. What percent of people waited less than 15 min. b. What percent of people waited less than 20…

A: Hi, we are supposed to answer three subparts at a time. Since you have not mentioned which subpart…

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A: Solution-: Given: ZStat=Z=2.301,P0=0.88,n=40 We find the p-value=?

Q: The market share analysis company, Net Applications, monitors and reports on the use of the Internet…

A:

Q: Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A:

Q: David is doing a research project in political science to determine the proportion p of voters in…

A: Let p represents the proportion of voters in David's district who favor capital punishment. A. The…

Q: 8. Sarah receiveda grade of 95 in her exam in Statistics. The teacher told her that her score is the…

A: We have given that the statements. Here, need to find out the given statement is true or false.…

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: In the hypothesis testing a pooled proportion pc is computed. This pooled proportion is computed by…

Q: A survey of 250 households showed 71 owned at least one snow blower. Find a point estimate for p,…

A: Solution-: X=71, n=250 We want to find the point estimate of p?

Q: Suppose John has a torn tendon and is facing surgery to repair it. The surgeon explains the risks to…

A:

Q: 395 out of 500 women were in favor with the new brand of skin whitening. What is the point estimate…

A:

Q: A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches…

A: Given data,E = 45 - 0.04Ƶ -value at 90% confidence is Ƶc = 1.645

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given Information :  The FBI wants to determine the effectiveness of their 10 Most Wanted list. To…

Q: A random sample of 93 American female soccer players found that 11 play professionally abroad. Build…

A: Given  n = 93 x = 11 α = 0.93

Q: Vhat is the approximate percentage of buyers wh aid between $1740 and $1860? Vhat is the approximate…

A: We have given that,  Let X be the random variable from normal distribution with mean = 1800 and…

Q: b. Use the range rule of thumb to find the values separating results that are significantly low or…

A: b. The minimum and maximum usual values are, μ-2σ,μ+2σ=20-2×3.2,20+2×3.2=20-6.4,20+6.4=13.6,26.4…

Q: A population of N = 20 scores has a mean of = 10. One score in the population is changed from X = 25…

A:

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: Introduction:Denote π1, π2 as the true proportion of men and women who own cats respectively.The…

Q: embers had rabbits or goats? B) What percent of the club members had on

A: It is given that the members who has number of rabbits are nr=16. The members who has number of…

Q: Suppose you want to estimate the percentage of stat students who passed the departmental final exam.…

A: Given : Total Stat students = 50

Q: 2. Felicisima is a teacher for 10 years in one big private schools in Antipolo City. Her salary is…

A: A teacher in Antipolo city is having a salary of Php 18,500 which is the 7th decile of the salary…

Q: brand manager for a brand of toothpaste must plan a campaign to increase brand recognition. He wants…

A: It is given that margin of error (E) is 0.05 and the confidence level is 0.98.

Q: exercise - A researcher wishes to try three different techniques to lower the blood pressure of…

A: Given  Medication=10,12,9,15,13  Exercise=6,8,3,0,2  Diet=5,9,12,84

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A:

Q: 4. What percentage of scores are between 60 and 85? 5. What percentage of scores is less than a…

A: Given Data: Let X represent the random variable   Mean=70 Standard deviation=5   X~ Normal (70, 25)

Q: A sample of 150 married women determined that 127 are happy in their marriage. A sample of 150…

A: Given that  n = 150 , X = 127 , p = 76% = 0.76

Q: A survey of 2314 adults in a certain large country aged 18 and older conducted by a reputable…

A: