Question
Asked Mar 18, 2019
92 views
Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of
size 200 with 36% successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three
decimal places.
help_outline

Image Transcriptionclose

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 200 with 36% successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places.

fullscreen
check_circle

Expert Answer

Step 1

Confidence interval:

The (1-α) % confidence interval for proportion p is given by:

fullscreen
Step 2

Computing the 90% confidence interval for population proportion:

 There were a total of 200 samples with 36% success. That is, n=200 and p=0.36. The confidence level is 90%. Therefore, the signi...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Other

Related Statistics Q&A

Find answers to questions asked by student like you
question_answer

Q: What is the condition on the probability of success p that will guarantee the histogram of a binomia...

A: The binomial distribution has p - probability of success and n- number of trails. The binomial distr...

question_answer

Q: Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of ...

A: Hello there! There are more than three sub parts in the given quesiton. According to our policies ca...

question_answer

Q: Are there ever any circumstances when a correlation such as Pearson's r can be interpreted as eviden...

A: Correlation between any two variables tell us the linear association meaning that one variable rise ...

question_answer

Q: One major assumption with independent t tests is called “homogeneity of variances.” Describe this as...

A: Independent Two Samples t-test:Suppose there are two populations independent of one another. A resea...

question_answer

Q: A study was done to look at the relationship between number of lovers college students have had in t...

A: The estimated regression line is as follows:

question_answer

Q: Write the equation of the line that passes through the points (0, 1) and (− 1, 3). Explain your solu...

A: The equation of the line is given by, y = mx+c, where m is the slope and c is the intercept.

question_answer

Q: What is needed to find a p value?

A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the as...

question_answer

Q: Directions: Draw the normal curve and shade in the specific region. Show formulas used and the subst...

A: Introduction:The normal distribution is a symmetric and mesokurtic continuous probability distributi...

question_answer

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were...

A: The provided details:

question_answer

Q: The state superintendent of schools consistently states that the average salary of all substitute te...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

question_answer

Q: A simple random sample of 500 individuals provides 150 Yes responses. a. What is the point estimate ...

A: a.The required point estimate is:

question_answer

Q: Do most researchers still insist on at least interval level of measurement as a condition for the us...

A: Solution:In Interval scale, the difference between two values are standardized and equal. Most stati...

question_answer

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: According to the given question, the flow in a river can be modeled as a log-normal distribution. Fr...

question_answer

Q: In baseball, is there a linear correlation between batting average and home run percentage? Let x re...

A: In this question we have the given data and using which we have to plot the scatter plot, and best l...

question_answer

Q: Five children aged 2, 3, 5, 7 and 8 years old weigh 14, 20, 32, 42 and 44 kilograms respectively. Fi...

A: Let x be the age of children and y be the weight of children.The equation of the regression line is:

question_answer

Q: 2. You are at Disney World and wait 45 minutes to ride the roller coaster at Space Mountain. Guests ...

A: The aim is to define the cycle time of the process and the throughput time.

question_answer

Q: Avarege GPA questions. Data  include.

A: Note: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not me...

question_answer

Q: Statistics Question

A: The simple linear regression line is given by:

question_answer

Q: Use the rank correlation coefficient to test for a correlation between the two variables. Use a sign...

A: In this question we have the ranks of judges, we need to conduct the hypothesis test to identify whe...

question_answer

Q: Past studies have indicated that 85.6% of all enrolled college students in the U.S are undergraduate...

A: The provided information are:Sample size (n) = 500Hypothesised proportion (po)=0.856Sample proportio...

question_answer

Q: Brandybuck Insurance Company (BIC) is deciding whether to insure the lives of those leading a quest ...

A: The probability of surviving = 0.885Money earned by BIC if the insured person survives = 9970 silver...

question_answer

Q: A grocery store manager did a study to look at the relationship between the amount of time (in minut...

A: The estimated regression line is as follows:

question_answer

Q: Previously, you studied linear combinations of independent random variables. What happens if the var...

A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...

question_answer

Q: What do you need to look for in bivariate screening (for each categorical and quantative variables)?

A: Solution:Bivariate analysis helps to determine the relationship of two variables. The possible combi...

question_answer

Q: A librarian would like to determine whether a new book appeals more to adults or to children. The li...

A: Independent samples:Two samples are independent if the sample values selected from one population ar...

question_answer

Q: Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flyi...

A: (a) Poisson distribution:It is a discrete probability distribution that models the number of events ...

question_answer

Q: Need all parts, a,b,and c Let X denote the data transfer time (ms) in a grid computing system (the t...

A: (a) Finding the values of α and β :The random variable X represents the data transfer time in a grid...

question_answer

Q: I need help with part (c) only, I need t statistic and p value. Mist (airborne droplets or aerosols)...

A: Part (c):The regression analysis is conducted here by using EXCEL. The software procedure is given b...

question_answer

Q: You are asked to design a study to investigate the effectiveness of the Atkins diet (IV = diet, DV =...

A: Independent t test:Independent t test determines whether there is significant difference between the...

question_answer

Q: A random sample of 30 binomial trials resulted in 12 success. Test the claim that the population por...

A: Hey, since there is multiple subpart questions posted, we will answer first three subparts. If you w...

question_answer

Q: Tamara is a physician who works in a city. She has a discussion with her colleague who believes that...

A: The correct options are: (A) and (C). Explanation:It is provided that the p-value is between 0.005 a...

question_answer

Q: If 25% of U.S. federal prison inmates are not U.S. citizens, find the probablity that 2 randomly sel...

A: Hello there! There are more than one question in the file shared. According to our policies cannot a...

question_answer

Q: Rolling Two Dice  If two dice are rolled one time, find the probability of getting these results A. ...

A: Hello there! There are more than 3 sub-parts in the question shared. According to our policies canno...

question_answer

Q: Use the normal distribution of SAT critical reading scores for which the mean is 513513 and the stan...

A: NOTE:Since, the numbers on the values of mean and standard deviation are repeating twice (513513 and...

question_answer

Q: construct a probability distribution and draw a graph for a family of 3 children.  Let X represent t...

A: According to the given question, construct a probability distribution and draw a graph for a family ...

question_answer

Q: Statistics Question

A: According to the provided information, the variable ‘x’ be age of the best actress winner and ‘y’ be...

question_answer

Q: At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to o...

A: (a) Calculation of confidence interval:The 95% confidence interval (CI) of the sample mean for a lar...

question_answer

Q: It is difficult to conduct sample surveys on sensitive issues because many people will not answer qu...

A: Tree diagram:It is a graphical representation of all the possible outcomes of an event. Each branch ...

question_answer

Q: The following is data for the first and second Quiz scores for 8 students in a class. First Quiz ...

A: (1)The given data about the first and second quiz scores of 8 students.Software procedure:Step by st...

question_answer

Q: directions construct a confidence interval of the population proportion at the given level of confid...

A: Confidence interval:It is given that n = 500 and x = 120.The (1−α)% confidence interval for proporti...

question_answer

Q: I asked this question before, and got an answer, but I have a question about the response that was g...

A: The formula that you shared from the text book is used for time-value-of-money calculations. Such a ...

question_answer

Q: A test consists of 940 true or false questions. If the student guesses on each​ question, what is th...

A: Given number of true or false questions = n = 940.Probability of correct answer p = 1/2Here we can s...

question_answer

Q: After you determine the mean annual return, how do you find the standard deviation?

A: Click to see the answer

question_answer

Q: I am working on constructing a histogram for some data for the 39 US national parks under 900,000 ac...

A: According to the given data41 ,66 ,233 ,775 ,169, 36 ,338 ,233 ,236, 64,183 ,61 ,13 ,308 ,77,520, 77...

question_answer

Q: In a union-management negotiation, the following are the percentages of annual wage increase gained ...

A: Let’s make a table to see this data M1M2M3U1133U2422U3314U4332U5312

question_answer

Q: Question 1 The company Phiten makes necklaces that Major League Baseball players commonly wear durin...

A: a) an exogenous variable can be defined as a variable whose value is independent of other variables ...

question_answer

Q: 2.) Two distinct fair dice are rolled at the same time and the number of dots appearing on both are ...

A: Probability that the sum is 3It is possible only in following combinations:Dice one has 1 dice and d...

question_answer

Q: Deborah wants to estimate the percentage of people who eat fast food at least once per week. She wan...

A: Margin of error is usually computed using the formula below.  In this question, Margin of error is k...

question_answer

Q: In a standard normal distribution, what is the area under the graph for z>0? Explain.

A: Normal distribution:A random variable X is said to follow a normal distribution if the probability d...

question_answer

Q: Imagine that the data from the 27 people did not meet the assumptions of correlation and no transfor...

A: It is provided that, the sample size (n) = 27, the Spearman correlation coefficient (rs) = 0.4.To te...