A survey of 425 randomly selected students at one university found that 300 students think they there is not enough parking on campus. Find the 95% confidence interval for the proportion of all students at this university who think your solution is inequality or interval.

Q: recent poll, 470 people were asked if they liked dogs, and 40% said they did. Find the margin of…

A: The critical value at 99% confidence level from standard normal table will be:   Following…

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

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Q: In a recent poll, 540 people were asked if they liked dogs, and 10% said they did. Find the margin…

A: We have to calculate 95% confidence level margin of error for single proportion.

Q: A local news outlet reported that 56% of 600 randomly sampled Kansas residents planned to set off…

A: We have given that,  Sample proportion (p̂) = 56% = 0.56 and sample size (n) = 600 Then,  We will…

Q: In a recent poll, 260 people were asked if they liked dogs, and 9% said they did. Find the margin of…

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Q: A  95% confidence interval for the  proportion of voters who say "they want change" is computed and…

A: For the population proportion, the confidence interval can be computed using the formulae: C.I=p⏞±E…

Q: In a random sample of 75 college students 60 of them had sunglasses.  Compute a 95% Confidence…

A: Thank you for posting the question. Since you have asked multiple question, we will solve the first…

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

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Q: England-based basketball team NewCastle Eagles wants to match their fans in two distinct countries.…

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Q: In a​ survey, 22​% of 230 single women said that they​ "definitely want to have children​."In the…

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Q: Out of a sample of 500 high school students, 376 said they would prefer to have computers in every…

A: Given that x=number of people who prefer to have computers= 376 n=sample size= 500 So the point…

Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

A: Solution: Given information: n= 746 Sample size  x = 56 Successes  p^=xn=56746= 0.0751    Sample…

Q: A  campaign wants to construct 90% confidence interval for the proportion of likely voters who…

A: Find z-critical value.

Q: A random sample of 75 college students of MSU is selected and 16 are found to have motorcycles on…

A: From the given information, The sample size is 75. Out of 75 students, 16 are found to have…

Q: In a recent poll, 290 people were asked if they liked dogs, and 40% said they did. Find the Margin…

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Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

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Q: In a sample of 500 Canadians, 275 say they would rather retire in the US than in Canada. Calculate…

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Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99%      =0.99Then, calculate αα = 1-0.99   =0.01Now,…

Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

A: Given that,x=62,n=813 (a) The sample proportion is, Critical values: By using the standard normal…

Q: when 282 college students are randomly selected and surveyed, it is found that 109 own a car. find a…

A: It is given that sample size (n) is 282 and x is 109.

Q: In a recent poll, 300 people were asked if they liked dogs, and 71% said they did. Find the Margin…

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Q: in a recent poll, 130 people were asked if they liked dogs, and 46% said they did. Find the Margin…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: A marketing firm wanted to estimate the true proportion of protected homes today that have a home…

A: Given Data: n=280p∧=0.69   As "n" is large enough we will use normal approximation to calculate…

Q: Out of 600 people sampled, 552 preferred Candidate A. Based on this, estimate what proportion of the…

A: Sample size is n= 600 and 552 preferred candidate A.  So X= 552 p^ = X/n  = 552/600 = 0.92

Q: 82 adults selected randomly from one town, 66 have health insurance. Find a 90% confidence interval…

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Q: In a recent poll, 270 people were asked if they liked dogs, and 29% said they did. Find the Margin…

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

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Q: In a recent poll, 360 people were asked if they liked dogs, and 55% said they did. Find the Margin…

A: It is given that Sample size n = 360 Sample prpoprotion = 0.55 The critical value of Z at 99%…

Q: A survey found that 611 out of 663 college graduates cannot correctly spell the word aluminum. Find…

A: Given that  A survey found that 611 out of 663 college graduates cannot correctly spell the word…

Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

A: Solution-:  Given: n=705,X=56,α=0.01 We want to find, (a) With 99% confidence the proportion of all…

Q: Out of 400 people sampled, 32 preferred Candidate A. Based on this, estimate what proportion of the…

A: Find z-critical value:…

Q: In a recent poll, 480 people were asked if they liked dogs, and 48% said they did. Find the Margin…

A: Solution: From the given information, p-hat=0.48 and n=480. The confidence level is 0.90.

Q: asked whether they had completed their required English 101 course, and 56 students said "yes".…

A: Given: n=108x=56 The sample proportion is calculated as; p^=xn  =56108  =0.5185 We known that the…

Q: In a recent poll, 530 people were asked if they liked dogs, and 95% said they did. Find the margin…

A: Given, n=530 p=0.95 Confidence level = 0.95 Critical value for 95% confidence level is 1.96.

Q: A random sample of 50 Indiana State University students finds 40% of students don't declare a major…

A: It is given that, A random sample of 50 Indiana State University student is to taken i.e. n=50 and…

Q: f 260 employees selected randomly from one company, 18.46% of them commute by carpooling. Construct…

A: Given data, n=260 p=18.46% =0.1846 z-value at 98% confidence is Zc=2.326

Q: In a recent poll, 390 people were asked if they liked dogs, and 33% said they did. Find the Margin…

A: Given p^=Sample proportion=0.33 n=sample size=390 Confidence interval = 99%

Q: Find a 95% confidence interval for the true population proportion.   In a poll of 1079 college…

A: The value of z at 95% confidence level is 1.96, which can be obtained by using the standard normal…

Q: The American Heart Association is about to conduct in anti smoking campaign and wants to know the…

A: Solution: Out of a sample of 1421 Americans over 35, 412 smoke.  Sample size: n = 1421 The number of…

Q: A study found that a 95% confidence interval for the mean μ of a particular population was computed…

A: Given, 95% confidence interval 10 ± 4  Sample size  = 1200         To write the conclusion regarding…

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

A: Given,n=725x=68p^=xnp^=68725=0.09381-p^=1-0.0938=0.9062α=1-0.95=0.05α2=0.025Z0.025=1.96    (from…

Q: In a random sample of 205 people, 160 said that they watched educational television. Find the 99%…

A: given that,possible chances (x)=160size(n)=205

Q: A psychologist is interested in constructing a 90% confidence interval for the proportion of people…

A: Solution: Let X be the number of people accept the theory that a person’s spirit is no more than the…

Q: In a recent poll, 390 people were asked if they liked dogs, and 83% said they did. Find the Margin…

A: We want to find the margin of error

Q: An online survey of 385 individuals found that 114 had fully completed the game God of War. Which of…

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Q: A member of the Lottery Commission requests a 90% confidence interval estimate but with a smaller…

A: The margin of error depends on the three factors: Level of confidence: The margin of error…

Q: Of 380 randomly selected medical students, 210 said that they planned to work in a rural community.…

A: The sample of 380 randomly selected medical students in which 210 said that they planned to work in…

Q: In a survey of 356 people who attended a local professional soccer teams most recent home game, 135…

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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.