A company wants to know what proportion of their customers plan to repurchase their product in the next six months. If the company wants a MOE of 2% at a 95% confidence level, what is the smallest number of customers it must survey? Show your work and calculations.

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

A: GIVEN DATA,  n=971x=554P^=Xn=554971=0.5705CI=0.99α=1-0.99=0.01we have to find out the confidence…

Q: What percent of data is less than -8%

A: here we can see that shape of curve is bell shaped and symmetric about x = -6 so it is normal…

Q: Can you guys help me on this? Thank you!

A: a) Sample mean =42.8    standard deviation =7.21 Sample mean =22.3    standard deviation =4.63b) We…

Q: An occupational therapist (OT) is comparing two different treatments to see which is more effective…

A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…

Q: Belief in Haunted Places A random sample of 280 college students were asked if they believed that…

A: Answer below

Q: How do you get online? A 2013 Pew Research survey of802 teens found that, among teens aged 12–17,…

A:

Q: You are told that your IQ scores falls at the 79th percentile.  What conclusion could you make about…

A: Percentiles: If the elements in the data set are arranged in ascending order of magnitude, then the…

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: It is given that both sample sizes are 200, number of strokes for aspirin alone is 60 and number of…

Q: (V) Conclusion: There is suficient evidence to conclude that the honeymoon location is dependent on…

A: From Part (iii), it can be observed that the level of significance is less than the p-value and the…

Q: Robyn Banks is an investor who acquired 100 shares of a company in year one at $10 and 50 shares of…

A: If the observations have unequal weightage then their mean value can be calculated by dividing the…

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 30 40 50 60 70 80 90…

A: We have to interprete given box plots.

Q: The data results below are from a simulation conducted to estimate the number of books read per year…

A: The given data is as follows:2, 7, 8, 15, 18, 19, 5, 17, 6, 4, 11, 7

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: Describe how you would apple the five basic steps of a statistical study to the following issues.…

A: Given that, The typical percentage of bill that is left as a tip in restaurants.

Q: Some association On-Line Discount Broker Survey polls members on their experiences with discount…

A: BrokerageSpeedSatisfactionScottrade, Inc.3.63.3Charles Schwab3.33.1Fidelity Brokerage…

Q: How do you find D? Asking about the end behavior of the data?

A: To find the model that exhibits the end behavior of the data, we need to look at the possible end…

Q: when trying to decide what car to buy, real value is not necessarily determined by how much you…

A: To determine the best car value, it is crucial to consider factors beyond the initial purchase…

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: Some association On-Line Discount Broker Survey polls members on their experiences with discount…

A: The scatter plot is used to visualize the numerical data. It examines the degree of relationship…

Q: 90th percentile = $39,300 For each of these percentiles, interpret the value of the percentile.…

A: It is given that 10th percentile = $025th percentile = $050th percentile = $1100075th percentile =…

Q: he preeminent basketball philosopher Rasheed Wallace popularized the phrase, "Ball don't Lie." This…

A: p = 0.785 n = 177

Q: The British Department of Transportation studied to see if people avoid driving on Friday the 13th.…

A: Given that  Level of significance=0.10   We have to test hypothesis for the claim that  on average…

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

A: It is given that x = 556n = 914Confidence level = 95%

Q: (a) Find a point estimate for the proportion of cell phone owners aged 18-24 who have an Androld…

A: It is given that Sample size n = 245 Number of cell phone owners with Android phone, X = 106

Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

Q: True or False The PEW Researcher center based on a sample of 10,000 recent college graduates says…

A: We need to find whether the given statements are true.

Q: 2. Find the median survival.

A: Let, X be the time to failure of transplanted kidney in months. Given, X follows Weibull…

Q: A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to…

A: Here n = 1500. Let P = Sample proportion = 0.6 or 60% Now since n is very large and n*P > 10,…

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.