What is the point estimate of the true proportion of people in the population who are over 6 feet tall?

Q: Suppose you want to estimate the proportion of traditional college students on your campus who own…

A: Find z-critical value:

Q: How many students should be sampled in order to be 90% confident in estimating the proportion in…

A: Given that  Margin of error =E =0.10 90% confidence.

Q: The state education commission wants to estimate the fraction of tenth grade students that have…

A: Population is the set of all objects of interest. For statistical studies, the complete population…

Q: A random sample by the National Institutes of Health included 2253 men to determine the proportion…

A: Given x=986 n=2253

Q: A random sample of 800 Tennessee residents is taken.  Of those 800 residents, 170 said their…

A: Given that total size of the sample= 800 Of those 800 residents, 170 said their favorite college…

Q: physicians

A: Number of success = x= 3145 n=5804

Q: A researcher wants to estimate the prevalence of breast cancer among women who are between 35 and 45…

A:

Q: A survey of 2390 musicians showed that 304 of them are left-handed. Find a point estimate for p, the…

A: Here Given sample size= n=2390                                         X=304

Q: I want to estimate the proportion of college professors who believe in aliens. How many college…

A: Given Confidence interval=90% sample proportion is within 5 percentage

Q: Suppose a researcher wants to estimate the population proportion of defective light bulbs. He took a…

A:

Q: The average verbal SAT score for the entire class of entering freshmen is 530. However, if you…

A: given  The average verbal SAT score for the entire class of entering freshmen is 530. However, if…

Q: According to a college survey,22% of all students work full time. Find the mean for the number of…

A: Given data,p=22%=0.22n=16Mean(μ)=?

Q: A survey of 2390 musicians showed that 398 of them are left-handed. Find a point estimate for p, the…

A: We have find population left handed..

Q: The beta shoe museum states that 68% of women wear shoes that are too small for their feet. A…

A: Given : Margin of error: ME = 0.02 sample proportion: p̂ = 0.68…

Q: In a random sample of 81 professional actors, it was found that 8 were extroverts. Let p represent…

A: Given  In a random sample of 81 professional actors, it was found that 8 were extroverts. Let p…

Q: Form a sample of 500 items,30 were found to be defective. The point estimate of the population…

A:

Q: A study shows that 93% of people prefer milk chocolate over dark chocolate. How large of a random…

A:

Q: I want to estimate the proportion of college professors who believe in aliens. How many college…

A: It is given that margin of error (E) is 0.05 and the confidence level is 0.95.

Q: Out of 300 people sampled, 153 said they prefer Coke over Pepsi. What is the point estimate for the…

A: Consider that p is population proportion of ALL people that prefer Coke over Pepsi.

Q: Suppose a certain Statistics instructor wants to estimate the proportion of students who enjoy…

A: Given datamargin of error=0.03

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: Margin of error(E), E=z×p×qn From the above E, find n, n=zE2×p×q Here, E=0.04 There is no…

Q: random sample of about 1000 people to estimate the mean of some quantity over a population of…

A: A confidence interval estimate is an interval estimate that includes the unknown population…

Q: A survey of 100 fatal accidents showed that in 43 cases the driver at fault was inadequately…

A: We have given that , A survey of 100 fatal accidents showed that in 43 cases the driver at fault was…

Q: Consider taking a point estimate from a randomly selected population of 120 students with a number…

A: The population is defined as a whole set of observations. It is difficult to deal with,…

Q: The state education commission wants to estimate the fraction of tenth grade students that have…

A: The proportion of tenth graders reading at or below the eighth grade level is calculated below:

Q: Determine the point estimate of the population proportion for the sample provided. Lower bound:…

A: sample proportion = (Upper limit+lower limit)/2 = (0.212+0.152)/2 = 0.182

Q: estimate the sample size

A: An estimate of sample size: The appropriate sample size for estimating the mean of a variable from…

Q: A survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone. Determine a…

A: Given that, In a survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone.

Q: A researcher wants to estimate the prevalence of breast cancer among women who are between 35 and 45…

A: p = 0.0043 margin of error = 0.001 z-critical value = 1.96

Q: A random sample of 4000 U.S.citizens yielded 2280 who are in favor of gun control legislation. Find…

A: Given:A rondom sample of 4000 U.S citizensyielded 2280 who are in favor of guncontrol…

Q: The workers at drug factory took a random sample of 800 drug tablets and found that 40 of them were…

A:

Q: A recent survey estimated that 19 percent of all people living in a certain region regularly use…

A: The 100 (1 – α)% confidence interval provides an interval estimation of the required population…

Q: tion, the standard distance between a sample mean and the population mean is 5 points for samples of…

A: The formula of standard error: SE=sn Now,  the standard distance between a sample mean and the…

Q: A sociologist wishes to conduct a poll to estimate the percentage of Americans who favor affirmative…

A: From the given information, she wants to use a 2003 estimate of 55% obtained from a Gallup Youth…

Q: How many students should be sampled in order to be 90% confident in estimating the proportion in…

A: Given that  Margin of error =E =0.10 90% confidence.

Q: A researcher measures eye color for a sample of n = 50 people.  Which measure of central tendency…

A:

Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: Given: Margin of Error ME= 0.06 Confidence level c= 0.90

Q: In a random sample for 56 professional actors, it was found that 46 were extrovert.let p represent…

A: Given that in a random sample for 56 professional actors, it was found that 46 were extrovert. i.e.…

Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: Given: Confidence level = 0.95, margin of error = E = 0.08.

Q: A marketing manager samples 150 people and finds that 87 of them have made a purchase on the…

A: a) From the provided information, Sample size (n) = 150 Number of people who have made a purchase on…

Q: To estimate the population mean µ with a 85% error margin of 2.5 units, 10) one has determined that…

A:

Q: ut of 200 people sampled, 28 said they prefer Coke over Pepsi. What is the point estimate for the…

A: It is an important part of statistics. It is widely used.  Since the question has multiple sub parts…

Q: The manager of a city recreation center wants to estimate the percent of city residents who favor a…

A: The confidence interval for the population proportion (single sample) is obtained by using the…

Q: Wildlife biologist inspects 153 deer taken by hunters and find 32 of them carrying Lyme disease…

A: According to the provided information, n=153x=32p=xn=32153=0.209

Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: From the given information, Margin error (E) = 0.03 Assume sample proportion = 0.5   The objective…

Q: A researcher wants to determine the percentage of American teenagers who send or receive text…

A:

Q: In interval estimation, as the sample size becomes larger, the interval estimate     becomes…

A: Introduction: The width of the confidence interval depends upon several factors.

Q: Suppose you want to estimate the proportion of traditional college students on your campus who own…

A: Given Data: Proportion

Q: At a certain college, it is estimated that fewer than 25% of the students have cars on campus. Does…

A: Given that,  H0: p= 0.25  H1: p=! 0.25 Sample size is n= 90 And x= 28 Proportion, P= x/n  = 28/90…

Q: Getaway Travel Agency surveyed a random sample of 45 of their clients about their vacation plans. Of…

A: 21 clients of 45 expected to go on 3 vacations in the next year Probability = 21/45   The numbers of…

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.