In survey 500 students are selected randomly 230 say that they believe in their perents decisions are good construct 90% confidence interval for the population proportion of students who believe that their perents decision are good is.
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In survey 500 students are selected randomly
230 say that they believe in their perents decisions are good
construct 90% confidence interval for the population proportion of students who believe that their perents decision are good is.
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- In a random survey of 2221 North Americans 689 of them had blood type A+. Construct a 94% Confidence Interval for the true proportion of North Americans who have blood type A+.In a population where the proportion of people who have the ability to taste umami is unknown. a random sample of 100 people were tested and 74 could clearly distinguish umami from saltiness. What is the sample proportion? Also, Create a 99% confidence interval for the true proportion of people in this region who can taste umami. Does this interval support the fact the majority of this region can taste umami? Why or why not and explain using the value of the confidence interval.During a field trip by 200 level nursing students in fajita community screening exercise for hypertension was conducted among members of the community,out of the 152 volunteers tested ,21 had raised bp. Calculate and interpret 95% confidence interval for the prevalence of hypertension in the community.
- Does the confidence interval not change for population proportion vs sample proportionst Expressway Two separate surveys were carried out to investigate whether the users of East are in favor of raising the speed limit on highways. From 250 car drivers interviewed, 30 were not in favor of raising the speed limit. While among 200 motorcyclists interviewed, 20 were not in favor of raising the speed limit. Find a 93% confidence interval for the difference of population proportion between the car drivers and motorcyclists who are in favor of raising the speed limit. Interpret the interval.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 43 113
- A 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…3) A local municipality tests 25 samples of water and finds that the mean concentration of chlorine in the water is 150 mg/l with a standard deviation of 18 mg/l. Construct a 90% confidence interval for your results and draw the interval. Hypothesis Testing Test#- Claim# Vn %3D pqof 101 randomly selected mothers, 17% indicated that they pay for private preschool, what is the 99% confidence interval for the proportion of mothers that pay for private preschool
- If 13 of 200 male voters and 9 of 159 female voters favor a certain candidate running for governor_of Illinois, find a 99% confidence interval for the difference between the actual proportions of malė and female voters who favor the candidate.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.
