Suppose we are now interested in taking random samples of 800 US adults instead of 150 and considering the sampling distribution of the corresponding sample proportions. What effect, if any, does this increase in sample size have on the mean of the possible sample proportion values? increase decrease stays the same

Q: 2. In a very hotly fought battle, 70 % at least of the combatants lost an eye, 75% at least an ear,…

A:

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: In our day-to-day life, we use probability without knowing to us. We use the word probably many…

Q: 13. If 27 out of 30 people passed a driving test, what percent failed?

A: Given Total people = 30 Passed people= 27 So ,failed people= 30-27 = 3

Q: a) Find the probability that 35 of those sampled have a HS diploma or the equivalent. b) Find the…

A: Here the given situation follows a binomial distribution.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Let P1 be the percent of lost time accidents in the first year.P1=10%15% of the employees having an…

Q: 5. As of 2021, the country Swaziland in southern Africa (now officially named as Eswatini) had the…

A: Probability is used to measure the likelihood of the event happening. It takes values between 0 to…

Q: 3. A Gallup poll surveys American beliefs about big business. The Gallup poll reports that 26% of…

A: Population proportion, p=0.26 Sample size, n=20

Q: An estimated 3 out 25 men are left handed. What percent of men are left handed?

A:

Q: .7. In a very hotly fought battle, at least 80% of the combatants lost an eye, at least 70% lost an…

A: Given  that, in a battle, at least  80% of the combatants lost an eye, at least  70% lost an ear, at…

Q: According to a Gallup poll conducted in April 2020, 31% of Americans identify as democrats, 30%…

A: Given information- We have given that according to a Gallup poll conducted in April 2020- Percentage…

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Given that 9% of the employees suffered lost-time accidents last year. Let this be event A1. P(A1) =…

Q: 4) 57% of kids can't wait for spring break. How many kids on average would we need to survey to find…

A: Geometric Distribution: Let us assume there is a sequence of trials, each having two outcomes, say…

Q: Again, suppose we are now interested in taking random samples of 800 US adults instead of 150 and…

A: We know that,  Proportion p= X/n Where n is sample size.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: The given data is as follows:

Q: 1.In a national survey of 2013 adults, 1283 indicated that they believe rudeness is a more serious…

A: Let N be the number of adults and X is indicated that they believe rudeness.Given thatN=2013,…

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Probability of an event is the percentage of chances that the event will occur. The probability lies…

Q: 3. A light bulb manufacturer finds that 4% of the bulbs it makes are defective. The quality control…

A: We will calculate percentage of 700 out of 15500 if it becomes 4% then we can agree.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: The percentage of employees who suffered lost time in accidents  last year was 6%The percentage of…

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Let A and B be the employees suffered accidents in last year and current year respectively P( A) =…

Q: A survey of a group's viewing habits over the last year revealed the following information: 29%…

A: Let us denote:G=gymnasticsB=baseballS=soccerGiven…

Q: Are attitudes toward shopping changing? Sample surveys show that fewer people enjoy shopping in…

A: a) Suppose p is the population proportion of U.S. adults prefer to shop for clothes online rather…

Q: If 44.87% of people on earth have a smartphone, 25.41% have a tablet, and 9% own both a smartphone…

A: Solution-:Given: Percentage of people on earth have a smartphone =44.87%=0.44.87Percentage of people…

Q: In a sample of 310 people, 186 completed only high school, 24 completed only some college, 93…

A: Given data A sample of 310 people is given. 186 completed only high school. 24 completed only some…

Q: 5. A study attempted to estimate the proportion of Florida residents who were willing to spend more…

A: Population: Population consists of the complete subjects that are included in the study for making…

Q: Age and Gender. The U.S. Census Bureau publishes census data on the resident population of the…

A:

Q: 3.How many Instagram followers does a typical celebrity have?

A: Ans)   According to the ASA ( Advertising Standards Authority ) , anyone who have more than 30,000…

Q: 43% of the students in a school are boys. If there are 399 girls in the school, what is the entire…

A: The term per cent means for every hundred. A fraction whose denominator is 100 is called a…

Q: 72% of Americans said that they plan to travel in 2021, and 9% of those who plan to travelintend to…

A: For example we take 100 Americans 72% of Americans said that they planned to travel in 2021, 72% =…

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.