You may need to use the appropriate appendix table or technology to answer this question.In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007 adults to learn about their major healthcare concerns. The survey results showed that 585 of the respondents lack confidence they will be able to afford health insurance in the future.(a) What is the point estimate of the population proportion of adults who lack confidence they will be able to afford health insurance in the future. (Round your answer to two decimal places.) [Text Box](b) At 90% confidence, what is the margin of error? (Round your answer to four decimal places.) [Text Box](c) Develop a 90% confidence interval for the population proportion of adults who lack confidence they will be able to afford health insurance in the future. (Round your answer to four decimal places.) [Text Box] to [Text Box](d) Develop a 95% confidence interval for this population proportion. (Round your answer to four decimal places.) [Text Box] to [Text Box]

Given data: Sample size (n) = 1007 x= 585

Answered: You may need to use the appropriate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A research poll included 1762 randomly selected adults who were asked whether "global warming is a problem that requires immediate government action." Results showed that 975 of those surveyed indicated that immediate government action is required. A news reporter wants to determine whether these survey results constitute strong evidence that the majority (more than 50%) of people believe that immediate government action is required. Complete parts (a) through (c) below. a. What is the best estimate of the proportion of adults who believe that immediate government action is required? The best estimate is 0.553. (Round to three decimal places as needed.) b. Construct a 95% confidence interval estimate of the proportion of adults believing that immediate government action is required.
2.
when trying to decide what car to buy, real value is not necessarily determined by how much you spend on the initial purchase. Instead, cars that are reliable and don’t cost much to own often represent the best values. but no matter how reliable or inexpensive a car may cost to own, it must also perform well. To measure value, Consumer Reports developed a statistic referred to as a value score. The value score is based upon five-year owner costs, overall road-test scores, and predicted-reliability ratings. Five-year owner costs are based upon the expenses incurred in the first five years of ownership, including depreciation, fuel, maintenance and repairs, and so on. Using a national average of 12,000 miles per year, an average cost per mile driven is used as the measure of five-year owner costs. Road-test scores are the results of more than 50 tests and evaluations and are based on a 100-point scale, with higher scores indicating better performance, comfort, convenience, and fuel…
The following boxplots represent the estimates of the lifespan of an elephant (in years) given by 11 male and 8 female eleven-year olds. Male estimates of elephant life span 20 40 60 80 100 Estimated life span (years) Female estimates of elephant life span 20 40 60 80 100 Estimated life span (years) (Note that the tables of summary values have not been included in these boxplots as this question is assessing your understanding of the shape of the boxplots.) Choose the two options from the list below that are true. Select one or more: O The median of the male estimates is greater than the median of the female estimates. The interquartile range of the male estimates is greater than the range of the female estimates. All the male estimates are less than the upper quartile of the female estimates. O The median of the male estimates is greater than the third quartile of the female estimates. O The range of the male estimates is smaller than the range of the female estimates.
Consider a survey in which 1000 people are asked “How often do you go to the dentist?” The variable of interest in this study is
Betsy is interested in predicting how many 75-year-olds will develop Alzheimer’s disease and is using as predictors level of education and general physical health graded on a scale from 1 to 10. But she is interested in using other predictor variables as well. Answer the following questions:What criteria should she use in the selection of other predictors? Why?Name two other predictors that you think might be related to the development of Alzheimer’s disease.With the four predictor variables—level of education and general physical health and the two new ones that you named in (b)—draw out what the model of the regression equation would look like.
The class I'm taking is statistics! I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. I need help with part C. thank you in advance!
The report "Who Borrows Most? Bachelor's Degree Recipients with High Levels of Student Debt"+ reported the following percentiles for amount of student debt for those graduating with a bachelor's degree in 2010. 10th percentile = $0 25th percentile = $0 50th percentile = $11,000 75th percentile = $24,600 90th percentile = $39,300 For each of these percentiles, interpret the value of the percentile. (Select all that apply.) 10th percentile At least 10% of students owe nothing. Less than 10% of students owe nothing. At most 10% of students owe nothing. 25th percentile O At least 25% of students owe nothing. Less than 25% of students owe nothing. At most 25% of students owe nothing. 50th percentile O 50% of the students owe $11,000 or less. O 50% of the students owe exactly $11,000. 50% of the students owe at least $11,000. 75th percentile 75% of the students owe $24,600 or less. 75% of the students owe exactly $24,600. O 75% of the students owe more than $24,600. 90th percentile 90% of…
Fueleconomy.gov, the official US government source for fuel economy information, allows users to share gas mileage information on their vehicles. The histogram below shows the distribution of gas mileage (city and highway combined) in miles per gallon (MPG) from 22 users who drive a 2008 Nissan Sentra (2WD). Note that these data are user estimates and since the source data cannot be verified, the accuracy of these estimates are not guaranteed. Nissan Sentra (2WD) from fueleconomy.gov Average MPG Mean 29.41 Standard Error 0.863153773 Median 30.15 Mode 27.8 Standard Deviation 4.05 Sample Variance 16.39075758 Kurtosis 0.08349459 Skewness -0.663433157 Range 15.4 Minimum 19.8 Maximum 35.2 Sum 647.1…
The preeminent basketball philosopher Rasheed Wallace popularized the phrase, "Ball don't Lie." This phrase means that if a foul was called incorrectly, the free-throw shooter is more likely to miss their shots. (We can think of this as a sort of Basketball Karma.) Due to the recent "Last Two Minute Report," we now have some data to test this claim. Of the 177 free throws awarded incorrectly, the shooter made 78.5%. Use this information to test the claim, with a .05 level of significance, that the percentage of made free throws after an incorrect foul call is less than 80%, which is the FT Percentage for an average NBA player. Round your answers to three decimal places or to the nearest tenth of a percent. (e.g. .021 or 2.1%) For credit, the hypothesis test must contain: 1) Claim in terms of the appropriate parameter (e.g. LaTeX: \mu=\:4.5\:miles) 2) Null and alternative hypothesis 3) Sample evidence used 4) Test stat (z or t) , p-value and direction of test. (right, left or…
"Bullying," according to noted expert Dan Olweus, "poisons the educational environment and affects the learning of every child." Bullying and victimization are evident as early as preschool, with the problem peaking in middle school. Suppose you are interested in the emotional well-being of not only the victims but also bystanders, bullies, and those who bully but who are also victims (bully-victims). You decide to measure depression in a group of victims and a group of bully-victims using a 26-item, 3-point depression scale. Assume scores on the depression scale are normally distributed and that the variances of the depression scores are the same among victims and bully-victims. The group of 25 victims scored an average of 25.3 with a sample standard deviation of 9 on the depression scale. The group of 23 bully-victims scored an average of 20.5 with a sample standard deviation of 8 on the same scale. You do not have any presupposed assumptions about whether victims or bully-victims…
12.2.84 The number of successes and the sample size for a simple random sample from a population are given below. x = 6, n = 200, Ho:p= 0.02, Hạ: p# 0.02, a = 0.05 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test. Click here to view a table of areas under the standard normal curve for negative values of z. Click here to view a table of areas under the standard normal curve for positive values of z. a. The sample proportion is. (Type an integer or a decimal. Do not round.)

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS