How do I input the following into Excel? You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95% confidence interval and a margin of error of 2%. A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?

Q: In a survey, the planning value for the population proportion is  p* = 0.33.  How large a sample…

A: It is given that the population proportion is 0.33.It is known that the critical value for 95%…

Q: A New York Times/CBS poll asked the question, "What do you think is the most important problem…

A: Given that p =0.24 E=0.027

Q: In a random sample of 100 men in the United States, 55 of them were married. Using a 95% confidence…

A: We have given that,  Sample size (n) = 100 and favorable cases (X) = 55  Then,  We will find the 95…

Q: Use the sample data and confidence level given below to complete parts  (c).   A research institute…

A: It is given that, the number of respondents said yes (x) is 587 and the sample size (n) is 912.  The…

Q: Campus athletics is interested in the proportion of registered students living on campus who play…

A: We are given that 95% confidence interval is correctly calculated from the given data as (0.12,…

Q: In a recent survey of 750 people, 600 people claimed to watch football.  Construct a 95% confidence…

A: Solution: 9. Let X be the number of people who watch football and n be the sample number of people…

Q: Della has over 500 songs on her mobile phone, and she wants to estimate what proportion of the songs…

A: The formula for the confidence interval is , CI=p^± Z*p^1-p^n Where,  p^=the proportion in sample…

Q: 3. You want to find out the percent of people who use an iPhone, so you survey 120 random adults, of…

A: Here we need to construct a 95% confidence interval for the population proportion.

Q: (e) Explain why you might want to potentially use the formula n > 4h? instead of n 2 2P (1 – p) when…

A: when there is no prior estimate of the sample proportion () is known, then we use, putting the…

Q: 4a) A survey asked users of Facebook, “Do you believe Facebook should be able to collect user's data…

A: a) The sample proportion is computed as follows, The value of z at 95% confidence level is 1.96,…

Q: In order to construct the 95% confidence interval, you choose which formula? O x ±1.645 × OT ±1.96 x…

A:

Q: Q4. You conduct a poll comparing two candidates. In a poll of 400 people, 190 prefer candidate A,…

A: Here, let πA and πB be the true population proportion of the supported people for A and B candidate…

Q: A telephone poll of 818 adult Americans was reported in an issue of Time Magazine. One of the…

A: Given P=0.39 Alpha=0.07

Q: 99% confidence interval for the proportion of the high school students who have been cyberbullied,…

A: Given that Sample size n = 14795 Number of high school students who have cyberbullied, X = 2219 The…

Q: Construct the 94% confidence interval estimate of the population proportion ? if the sample size is…

A:

Q: 6.24 Social Networking Sites In a survey of 2255 randomly selected US adults (age 18 or older), 1787…

A: It is given that out of 2255 US adults, 1787 US adults use the internet regularly. Let pA be the…

Q: Construct the 95% confidence interval estimate of the population proportion ? if the sample size is…

A: Given Data Sample Size, n = 400 Number of successes, x = 52.0 confidence level,c=…

Q: In a survey, the planning value for the population proportion is p* =0.25 . How large a sample…

A: Given: p* = 0.25α=0.05MOE=0.09

Q: Suppose you want to construct a 95% confidence interval for the proportion of people who will stop…

A: We have given that,  Margin of error (E) = ± 4% = ±0.04 and confidence interval = 95% Then,  We will…

Q: 1. In a recent study, the researchers want to find the information about the percentage of adults…

A: Given datan = 3026proportion of people who prefer to get their news online = 0.38

Q: Wildlife biologists inspect 139 deer taken by hunters and find 29 of them carrying ticks that test…

A:

Q: You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You…

A:

Q: Using p′=0.167, q′=0.833, and n=180, what is the 95% confidence interval for the proportion of the…

A:

Q: A SURVEY WAS CONDUCTED IN 2010 AND 2020. THE 2010 RESULTS SUMMARIZED THE RESPONSES OF 1250…

A: Confidence interval are used to measure the range where the population proportion lies. It is…

Q: Federal Gas Tax. The Quinnipiac University Poll conducts nationwide surveys as a public service and…

A: a)It is given that:

Q: A proportion, p, that many public opinion polls estimate is the number of Americans who would say…

A:

Q: You want to estimate the proportion of current OSU students who were born outside of Ohio. You…

A: Given: n= 300 At 99.0 % confidence level , z score= 2.576 Need to find MARGIN OF ERROR for…

Q: What Z score would be used to construct a 90% confidence level? Is it ... a. 1.65 b. 2.33 c.…

A: Confidence Level = 90 Significance Level = α = (100-90)% = 0.1 Critical value = z* = 1.65   […

Q: n our Condor Cafe, the Oxnard College Culinary Program offers the most delicious and affordable…

A: Given that, n=255,x=75

Q: In a survey, the planning value for the population proportion is p* 0.16. How large a sample should…

A: Obtain the sample size of a preliminary estimate for p is 0.16 with the 90% confidence.   The…

Q: You want to survey students to see what proportion of them have taken Statistics 101. This survey…

A: Margin of error(M) = 4% = 0.04 Confidence interval = 95%

Q: You are trying to figure out if there is interest in a new restaurant opening in town. You speak to…

A: Solution: 26. Let X be the number of people that would visit the new restaurant and n be the sample…

Q: 12. A health professional is concerned that people aren't brushing their teeth correctly in Knox…

A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have helped…

Q: A soft drink company surveys 500 shoppers and finds that 61% of shoppers prefer diet soda to regular…

A:

Q: In a 95% confidence interval the quantity 0.95 = 1 – 0.05 is called the confidence coefficient. True…

A: The confidence coefficient is the confidence level stated as a proportion, rather than as a…

Q: You report a 90% confidence interval for the mean based on a sample. If you repeated your sampling…

A: The confidence interval at 100 (1 – α) % confidence level gives us an interval estimate about the…

Q: Social Networking Sites In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of…

A:

Q: Trainers at a dog training facility find want to know how successful their recently updated program…

A: 250 owners with dogs randomly select; n=250 100 says yes if they consider their dog well behaved;…

Q: In a survey, the planning value for the population proportion is p* = 0.25. How large a sample…

A: Given,sample proportion(p*)=0.25margin of error(E)=0.08α=1-0.95=0.05α2=0.025Z0.025=1.96   (from…

Q: 1. Exploring the role of level of confidence: b. Construct 1,000 confidence intervals with n = 100,…

A: The provided information is:

Q: 2. You are going to construct a 90% confidence interval for the proportion of adults that have a…

A: From the given information, let X be the number of adults that have a post-secondary education. The…

Q: In a survey, the planning value for the population proportion is p* = 0.35. How large a sample…

A: Find z-critical value. Refer Standard normal table/Z-table OR use excel function…

Q: how many samples out of 100 would you expect to not include the true population mean within their…

A: here given ,  confidence level =  90%  sample size  = 100

Q: Which is true about a 95% confidence interval for a population proportion based on a given sample? A…

A: The given information about the 95% confidence interval for a population proportion.

Q: In a survey the planning value for the population proportion is P* = 0.45. How large a sample should…

A:

Q: When computing a confidence interval for the population mean µ when the population SD a is known,…

A: Given data: Confidence level = 85% Population standard deviation is known. To find: Critical value

Q: Consider the one-sided confidence interval expressions for the mean of a normal population. Round…

A: Givena)Confidence interval = 80%

Q: what is the confidence coefficient of the following confidence levels? 99% Confident? 90%…

A:

Q: Refer to the following scenario. An epidemiologist is worried about the prevalence of the flu in…

A: Solution: Given data: simple random sample(n) = 332 x =  40 (have recently had the flu)  95% =…

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.