survey 500 students are selected randomly 230 say that they believe in their perents decisions are good construct 80% confidence interval for the population proportion of students who believe that their perents decision are good is.
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survey 500 students are selected randomly
230 say that they believe in their perents decisions are good
construct 80% confidence interval for the population proportion of students who believe that their perents decision are good is.
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- The University of Chicago's General Social Survey (GSS) is the nation's most important social science sample survey. The GSS asked a random sample of adults their opinion about whether astrology is very scientific, sort of scientific, or not at all scientific. A two-way table of counts for people in the sample who had three levels of higher education degrees is given. Degree Held Bachelor Junior College Not at all scientific Very or sort of scientific 13 Identify a 95% confidence interval for the percentage of people with a junior college degree who think that astrology is not at all scientific. 0.4597 to 0.6729 0.1011 to 0.1745 0.0793 to 0.1377 0.4768 to 0.6558 47 36 Graduate 181 43 113A Pew Research Center report on gamers and gaming estimated that 49% of U.S. adults play video games on a computer, TV, game console, or portable device such as a cell phone. This estimate was based on a random sample of 2001 U.S. adults! Construct and interpret a 95% confidence interval for the proportion of all U.S. adults who play video games. O We are 95% confident that the interval from 0.472 to 0.509 captures p = the proportion of adults in the Pew Research Center report who play video games. O We are 95% confident that the interval from 0.472 to 0.509 captures p = the true proportion of U.S. adults who play video games. We are 95% confident that the interval from 0.468 to 0.512 captures p = the true proportion of U.S. adults who play video games. O We are 95% confident that the interval from 0.468 to 0.512 captures p= the proportion of adults in the Pew Research Center report who play video games. O We are 95% confident that the interval from 0.018 to 0.031 captures p = the true…In a survey of 160 randomly selected gun owners, it was found that 80 of them said they owned a gun primarily for protection. Find the margin of error and 95% confidence interval for the percentage of all gun owners who would say that they own a gun primarily for protection. Report answers to 2 decimal places
- A nutrition and diet center selected 12 clients randomly and listed the weight they lost after the nutrition program in kg as follows. According to this, Number of clients Weight loss (kg) 3,2 2,1 4,6 1,8 1. 2 4 3,5 6. 2,2 1,9 7 8. 4,2 2,6 9. 10 1,7 11 4,3 12 5,2 1. Find and interpret the 95% confidence interval for the population mean. 2. If a confidence interval calculated for the population mean is found to be 2.62 - 3.59, find the confidence level of this range.Canadians retiring in FL, please show work and neat handwritingConstruct a 95% confidence interval for the true mean of city mileage (MPG) of all cars with a manual transmission. Assume that MPG of cars with a manual transmission follows a normal distribution. Also, provide an interpretation of the confidence interval in context. Here is my work so far Manual and Automatic Transmission Total # of Cars = 1129 Total # of Automatic Trans. = 877 Total # of Manual Trans. = 252 Average (Auto) = 18.97948 Average (Manual) = 20.69841 Standard Deviation (Auto) = 8.390146 Standard Deviation (Manual) = 8.565189 Automatic Min: 8 Q1: 15 Median: 18 Q3: 21 Mode: =MAX(B2:B878) = 126 Manual Min: 11 Q1: 18 Median: 20 Q3: 24 Mode: 31
- A firm applies a skill test to applicants to fill the vacant Quality Engineer position. The company's Human Resources Manager knows that the talent exam scores of candidates applying for this position have been distributed normally with 35.8 standard deviations in the past years. A sample of “n” was taken from the candidates who applied to the position of Quality Engineer and aptitude test of these candidates The mean score was 167.5. Find and interpret the 90% confidence interval for the average of the talent exam scores of the applicants who apply for the Quality Engineering position. . (n = the last two digits of your student number. If the last two digits are zero, choose as a two-digit number)Student ID : 201747201A random sample of 17 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below. 47, 50, 40, 40, 48, 44, 39, 29, 34, 47, 27, 46, 46, 45, 47, 27, 35 Send data to calculator Send data to Excel If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task. Then find the lower limit and upper limit of the 95% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: | Upper limit:I70% of 117 delegates in a political convention favored changing the rules to restrict the number of potential candidates. What is the 99% confidence interval for the population proportion? (Use TI-84 where able)
- Decide if the following statement is true or false and explain your reasoning: Suppose you found a sample proportion p^p^and built a 95% and 99% confidence interval around it. If the the population proportion pp is in actually the 95% confidence interval, then it must also be in the 99% confidence interval.During a field trip by 200 level nursing students in Koraye community screening exercise for genetype was among members of the community. Out of the 152 volunteers tested 21 had SS genotype. Calculate and interpret 95% confidence interval for the prevalence sickle cell disease in the community.in a random sample of 74 My daughter in Santa Clarita California each person who's asked if they support the death penalty. 33 adults in the sample so they do support the death penalty. What was the sample proportion of adults in Santa Clarita that support the death penalty? Calculate a 99% confidence interval estimate of the population percent of people in santa clarita that support the death penalty.