Disney Corporation would like to know what proportion of diners at Disney Springs would prefer to have a grand view when they dine. They believe that the proportion who might be interested is close to 0.8 based on a pilot study. They want to be 95% confident with a margin of error equal to 0.02. Use JMP to determine what size sample they need. Round the answer as you should for this type of problem.

Q: You would like to conduct a survey to estimate the proportion p of consumers who like a new brand of…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Solution: From the given information, confidence level is 0.999 and E=0.05.

Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

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Q: Make 1 real-life problem with a solution in any of the following topics; 3. Preforming hypothesis…

A: One sample proportion test is used to compare the sample proportion to a specified proportion of the…

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A: Given: margin of error of 3.5 percent 99% confidenp p= 18.3%

Q: A medical researcher wants to find the percentage of females who take vitamins. He wishes to be 95%…

A: Given that  Margin of error =E =4%=0.04 Sample size n =180 Sample proportion p^=35%=0.35

Q: Make 1 real-life problem with a solution in any of the following topics;

A: Hypothesis testing for one sample proportion is large sample hypothesis test for binomial…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: From the given information, the confidence level is 90% and the margin of error (E) = 2.5% = 0.025…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Given: Refer Standard normal table/Z-table OR use excel function "=NORM.S.INV(1-0.005)" to find…

Q: How large the sample size should be in order to be 98 percent confident, if the sample proportion is…

A: Given data, p=0.78 E=0.16 z-value at 98% confidence is Zc=2.326 n=?

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: you want to obtain a sample to estimate a population proportion. based on previous evidence, you…

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Q: You take a random sample of size 25 students and find the 5 who understand this lecture. With 99%…

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Q: From the sample statistics, find the value of p1 - P2, the point estimate of the difference of…

A: We have given the 99% confidence interval fot  p2-p1 (-0.0012, 0.003)

Q: 2. Let sample proportion . How large a sample should be taken to be 95 % sure that the error of…

A: Let proportion be p=0.50 E=0.02 z-value at 95% confidence is Zc=1.96 n=?

Q: Based on historical data in Oxnard college, we believe that 39% of freshman do not visit their…

A: Given Information:p=39%=0.39c=95%=0.95Margin of error, E=3%=0.03

Q: When comparing two sample proportions with a two-sided alternative hypothesis, all other factors…

A: Here, two sample proportion two sided test is being conducted. A smaller p value is found. The p…

Q: The digital marketing specialist would like to test the claim that the percent of customers who use…

A: Formula : Test statistic

Q: In a CBS poll of 1289 adults, nationwide, asking whether they favor or oppose teacher and school…

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Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

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

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: Jennifer wants to estimate the percentage of parents that use cloth diapers. She asks a randomly…

A: Solution: It is given that Jennifer wants to estimate the percentage of parents that use cloth…

Q: 1. What are the null and alternative hypotheses? Ho: p= 0.5000 Ha: p>0.5000 2. Calculate the null…

A: Given: No. of crashes occur, x=107 Sample size, n=195

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Step-by-step procedure to obtain the value of z using MINITAB:Choose Graph > Probability…

Q: A researcher wishes to estimate the proportion of corporate executives whose annual salary is over…

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Q: Is a population proportion a parameter or a statistic? What about a sample proportion? Explain your…

A: Parameter: Any statistical measure based on all units in the population is called Parameter.…

Q: From the sample statistics, find the value of p1 - p2, the point estimate of the difference of the…

A: From the provided information,

Q: Suppose you take a sample of 25 Reese's pieces. The proportion of orange is 0.55. What is the…

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Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Solution: From the given information, confidence level is 0.90, p=0.59 and E=0.03.

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given that Confidence level (C) = 95% We don't have any reasonable estimate for the population…

Q: You want to obtain a sample to estimate a population proportion. At this point in time you have no…

A:

Q: What is the standard error of the sample proportion of people that like a product if you have a…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

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Q: you want to obtain a sample to estimate a population proportion. based on previous evidence, you…

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Q: n a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA…

A: Central limit theorem: For a simple random sample of size n drawn from a population, the sampling…

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: population proportion (p) = 0.23 let, sample proportion = m and , number of samples to be collected…

Q: Suppose you take a sample of 25 Reese's pieces. The proportion of orange is 0.4. What is the p-value…

A: We want to find P-value  n=25 , p=0.4 , p0=0.5