Based on a sample survey, a company claims that 75% of their customers are satisfied with their products. Out of 1,176 customers, how many would you predict to be dissatisfied?

Q: At the end of a rock concert, representatives of the featured performer randomly selected 50 of the…

A: Here, performer randomly selected 50 of the attendees and had them fill out a survey that asked them…

Q: A medical researcher says that less than 82% of adults in a certain country think that healthy…

A: Given: Sample size of data is n=600. 80% percentage of the healthy children should be required to be…

Q: skateboard 2. A study on crime suggested that at least 40% of all arsonists were less than 21 years…

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Q: investment, a software company, has a 7% chance of returning 57,000,000 profit, a 18% chance of…

A: Given information: Amount that the venture capitalist is willing to invest = $1,000,000 The three…

Q: A medical researcher says that less than 72% of adults in a certain country think that healthy…

A: Given information: Sample size(n)=200. Sample proportion for healthy children's should be required…

Q: A child psychiatrist hypothesizes that word chunking impacts language development.  To investigate,…

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

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Q: Clair: A majority of adults would erase all of their personal information online if they could. A…

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Q: An educational psychologist was interested in time management by students. She had a theory that…

A: Given, Population mean = μ = 18.68Sample mean = x = 16.24Sample standard deviation =s= 6.80Sample…

Q: Some people claim they can get relief from migraine headache pain by drinking a large glass of ice…

A: Response Variable A variable which measures the result or outcome of the study is known as Response…

Q: A recent study investigated whether renowned violinists were able to classify the age of a violin.…

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Q: A researcher studying allergies to animals is interested in performing a study at the local…

A: Given information: Given that the researcher is interested to study the allergies to animals.

Q: A drug company creates a medicine designed to prevent colds, and states that it is equally effective…

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Q: In a recent poll, 530 people were asked if they preferred cats or dogs. 59% said they preferred dogs…

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Q: sample of twenty people went on a cruise to Europe. Their two-week weight gain is shown below (a…

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Q: STEM Internships - In 2017, a survey conducted by the MSU Graduate School asked MSU graduate…

A: Given data number of success , x= 290.0 sample size, n = 415 population…

Q: A CDs are more popular among middle school students than high school students. B Streaming is more…

A: It is given that the two-way frequency table picture shows that the William surveyed 31 high school…

Q: How large a sample must a pollster take in order to estimate with 95% confidence and to within 3…

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Q: In a recent poll, 450 people were asked if they preferred cats or dogs. 52% said they preferred dogs…

A: Given data: n = 450  52% said they preferred dogs and 48% of people said they preferred cats, with a…

Q: Are freshmen psychology majors just as likely to change their major before they graduate compared to…

A: Given:x1=329, n1=651x2=398, n2=760 Then,p^1=x1n1=329651=0.5054p^2=x2n2=398760=0.5237…

Q: A medical researcher says that less than 84% of adults in a certain country think that healthy…

A: A random sample of 400 adults in a country is taken, 81​% think that healthy children should be…

Q: A sample of 425 voters aged 18 – 25 were asked whether they thought Social Security benefits should…

A: Given information- Significance level, α = 0.05 Let, p1 = proportion of voters aged 18 – 25 were…

Q: 4. People don’t always answer surveys honestly! Suppose that the number of students at a school who…

A: The event A is defined as the students at a school who really like the taste of canned peas, and  A¯…

Q: A researcher wants to know whether people are more likely to contact their local government…

A: It is given that the researcher wants to know whether people are more likely their local government…

Q: Recently, a nurse commented that when a patient calls the medical advice line claiming to have the…

A: Given : p = 0.04 n = 25

Q: You are told that the proportion of those who answered "no" to a political survey is 0.60, and that…

A: Given Information: Proportion of those who answered "no" to a political survey is 0.60 i.e., p=0.60…

Q: During the current quarantine, a certain ISE statistics professor has been playing video games on an…

A: Probability distribution of a random variable gives the probability at each value of the random…

Q: The article "Most Women Oppose Having to Register for the Draft"† describes a survey of likely…

A: The claim is that a majority of Republicans are opposed to making women register for the draft.

Q: The sports section of the East Mule Shoe Gazette runs a weekly question that readers can answer…

A: Given that, After the local university’s football squad was beaten by its rival for the forty-second…

Q: A university counselor believes that hypnosis is more effective than the standard treatment given to…

A: Given Information: Hypnosis Treatment Standard Treatment 20 42 21 35 33 30 40 53 24 57…

Q: Cable TV choices: A telecommunications company provided its cable TV subscribers with free access to…

A: From the provided information, Sample size (n) = 390 From which 30 replied. Level of significance…

Q: A Company is planning a Children’s Christmas party for their 750 employees. Base on the survey…

A: This problem solve by property of set's . The solution of the problem in the next page .

Q: Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend…

A: no. of student in sample = n = 40 no. of students attended after-school Programms = x = 7 Total No.…

Q: A researcher wanted to examine if purpose influences suicide ideation. A sample of 152 adolescents…

A: Cluster Analysis or Clustering is a method of grouping objects/observations/data points according to…

Q: Only 42% of registered voters voted in the last election. Will voter participation be even lower for…

A: Given, p=42% = 0.42 This is the left tailed test .

Q: According to a recent survey of adults, approximately 62% carry cash on a regular basis. The adults…

A: If A and B are independent, then P(A|B)=P(A) or P(B|A)=P(B)

Q: Determine if the following is an example of descriptive or inferential statistics. 85 randomly…

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Q: In a Gallup poll of randomly selected adults, 66% said that they worry about identity theft. For a…

A: Given that, 66% said they worry 34% said they dont worry, p=0.34 n=1013 Mean=?

Q: 1. XYZ Cable corporation employs 2,500 people. If a random sample of 165 is taken from the entire…

A: We answer up to three subparts of a problem. Thus, we'll be answering the first three sub parts.…

Q: The researcher asks parents how much time their student spends on social media and if they struggle…

A: Solution:  The variable of interest is  students time spend on social media and if they struggle…

Q: In advance of the 1936 Presidential Election, a magazine titled Literary Digest released the results…

A: 1. The sample chosen from the given lists was not representative of the population of the United…

Q: medical researcher says that less than 85​% of adults in a certain country think that healthy…

A: Given that  A medical researcher says that less than 85​% of adults in a certain country think that…

Q: A survey was given asking whether they watch movies at home from Netflix, Redbox, or a video store.…

A: Given information 39 only use Netflix 53 only use Redbox 18 only use a video store 15…

Q: A medical researcher says that less than 86​% of adults in a certain country think that healthy…

A:

Q: Polls show that among likely voters in the Make-Believetown Governor's race, Bad Wolf is currently…

A: Given Information:  Percentage of voters in favor of Bad Wolf = 43%  Percentage of voters in favor…

Q: A medical researcher says that less than 85​% of adults in a certain country think that healthy…

A:

Q: ind the number of successes x suggested by the given​ statement:   From a​ CNN/USA Today/Gallup​…

A: Here we need to find x such that x/n= 0.137, where n=1299.

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.