You have recently had a debate with a friend about who uses smartphones the most. Your friend believes that men use smartphones more than women. After conducting a research study, you find that out of 973 randomly sampled men, 379 use smartphones. Out of 1,304 randomly sampled women, 404 used smartphones. Based on a 95% confidence level, after hypothesis testing, what would you tell your friend? Would the null hypothesis reject H0 or fail to reject H0

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: Of Alton High School football team's last 112 games, they won 67. Baylor High School lost some of…

A: Given information, we have two high school football team's.  From Alton high school, out of 112…

Q: A survey conducted on a certain website indicated that 52.9% of the people visiting this website…

A:

Q: Find the p-value for the following scenarios. Round your answers to 4 decimals. 1) Right-tailed…

A: 1) The degrees of freedom is 8 and test statistic value is -2.94.

Q: A local news outlet reported that 56% of 600 randomly sampled Kansas residents planned to set off…

A: We have given that,  Sample proportion (p̂) = 56% = 0.56 and sample size (n) = 600 Then,  We will…

Q: CareerBuilder took a random sample of 1,600 workers and found that 592 of them would put in their…

A: given data sample size (n) =1600favorable outcomes (x) = 59290% ci p.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: You and a friend are interested in knowing if two groups have the same proportion of smokers. The…

A: 1. In the given situation, the proportions of two groups are comparing. The suitable test for…

Q: n a recent poll, 120 people were asked if they liked dogs, and 57% said they did. Find the margin of…

A: given data, n=120p^=0.57CI=0.99α=1-0.99=0.01we have to find out the confidence interval for the…

Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.…

A: It is given that: p^ (proportion of adults, who lie chocolate pie at the sample level)=11% (i..e,…

Q: Your statistics instructor claims that 60 percent of the students who take her Elementary Statistics…

A: Given that,The total number of surveyed students is 64.Therefore, the sample size is The number of…

Q: In a recent poll, 300 people were asked if they liked dogs, and 89% said they did. Find the margin…

A: Solution: From the given information, p-hat=0.89 and n=300.

Q: As Senior Class President, one of your lifelong duties is overseeing the planning of your high…

A:

Q: You have recently had a debate with a friend about who uses smartphones the most. Your friend…

A:

Q: In the most recent YouGov survey of 1,500 U.S. Adults Citizens, 39% said they approve of the job the…

A: Given: n=1500p^=0.39P=0.416

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

Q: In a recent poll, 120 people were asked if they liked dogs, and 29% said they did. Find the margin…

A:

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: Say you've conducted a survey to determine how many people are left handed. You survey 100 people…

A: Here want to construct confidence interval for people who are left handed.

Q: You sample 33 people to see if they own a dog, and find that 42% of them (rounded) do own a dog.…

A: The random variable X follows binomial distribution. X ~ B (n, p) = > X ~ B (33, 0.42). We have…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: On September 25, 2011 Michael Vick, the quarterback for the Philadelphia Eagles broke his…

A: The sample size, i.e., the number of fans that voted, n=914.The percentage (or proportion) of fans…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Solution:There is no estimates available, hence the sample proportion is assumed to be 0.50.The…

Q: In a recent poll, 150 people were asked if they liked dogs, and 55% said they did. Find the margin…

A:

Q: On September 25, 2011 Michael Vick, the quarterback for the Philadelphia Eagles broke his…

A:

Q: In a recent polI, 200 people were asked if they liked dogs, and 15% said they did. Find the margin…

A: From the provided information, Sample size (n) = 200 15% people said they like dogs that is p̂ =…

Q: n a recent poll, 230 people were asked if they liked dogs, and 70% said they did. Find the margin of…

A: It is given that the n = 230 and p hat is 0.70.

Q: A news article that you read stated that 58% of voters prefer the Democratic candidate. You think…

A: The following information is provided: The sample size is N=300N = 300, the number of favorable…

Q: A public opinion organization wants to know if opinions on gun control laws have changed over time.…

A: Given that, a poll conducted in 2006 found that 55% of people favored stricter gun laws.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: In a recent poll, 170 people were asked if they liked dogs, and 24% said they did. Find the margin…

A:

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.