Determine if the following is an example of descriptive or inferential statistics. 85 randomly selected fifty-year-old Americans were asked how much money they had saved for their retirement. The average for these respondents was $25,000, the minimum was $0 and the maximum was $1,200,000. Descriptive Statistics Inferential Statistics

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: West High wants to estimate the number of students who drive to school. Answer the following. (a)…

A: a). Since, a sample is a part of the population and that represents the population. Therefore, the…

Q: In planing for his children to go back to school Susan buys several items at a discount. Five items…

A: Given information: Five items at $1.29 each, three at $1.49 each, six at $1.79 and nine at $0.99.…

Q: A box truck rental service offers trucks in multiple sizes for people who are moving. If a 10-foot…

A: Given:           10−foot truck can carry 45 boxes.26−foot truck can carry 160 boxes.

Q: A student receives the following grades, with an A worth 4 points, a B worth 3 points, a C worth 2…

A: We have to find gpa.

Q: Matilda recently took a statistics quiz in her math class. In one question, 45 of 900 visitors at a…

A: Matilda's error is  D. 900 visitors represents the population.

Q: For a 10 point quiz, the professor recorded the following scores for 8 students: 7, 8, 3, 9, 10, 6,…

A: From the above data The correct option of mean is  7.0

Q: The 2008 General Social Survey asked a nationally representative sample of 1324 adult Americans to…

A: The sum of counts/frequencies is: n = (87 + 273 + 354 + ... + 9 + 13) = 1324

Q: Select the statement below that gives an example of a statistic.

A: Select the statement below that gives an example of a statistic. 1): According to census data, about…

Q: A scientist wants to know if education level and marital status are related to all people in some…

A:

Q: The data collection method can best be described as Census Clinical study Controlled study Survey

A: Here we have given the multiple choice question about the methods of sampling. The question is,   As…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: From the provided information, Margin of error (E) = 0.035 Confidence level = 99%

Q: As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and…

A: The data collection method is Survey or Sample.

Q: a sample of students is taken from the school A honor roll. The school estimates that there are…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Proportion = p = 0.5 (assumed) Margin of Error = E = 0.035 Confidence Level = 90 Significance…

Q: 13. Andi wants to know if there is a difference in income if he is studying and not attending…

A: Calculate the Sample means and Standard deviations for two groups

Q: Time to file - A citizen's advocacy group is concerned about the amount of time it takes taxpayers…

A: As per requirement 2 and 4 Given:

Q: Timmy asks college students to complete a survey pertaining their academic experience. He then looks…

A: We know that in Primary research , the researcher is directly involved in the data collection…

Q: The mean weekly salary of 9 teachers in a school is $1,000. If the school has 9 teachers and 11…

A: SOLUTION-

Q: As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and…

A:

Q: Find the median position for n=17 n=50

A: Median : The median of a data set is found by identifying the middle number in a sorted data set. If…

Q: 13. A marketing manager for a cereal manufacturer selects a simple random sample of customers who…

A: The answer to the above question is as follows ;

Q: Which of the following is not an inferential statistics?" A . Autism is estimated to affect seven…

A: Descriptive Statistics Used to describe a mass of data in a clear, concise and informative way…

Q: Sierra College students enrolled in an online Elementary Statistics course were asked to participate…

A: Given:   Desktop computer 31 laptop computer 113 Smart phone 6 Tablet 3 Total 153

Q: 1 Which one of the following is a valid statistical quesiton? When you call your cell-phone…

A: Statistics is the discipline that concerns the collection, organization, analysis, interpretation,…

Q: Snowmobiles in the park Yellowstone National Park surveyed a random sample of 1526 winter visitors…

A: Solution: The observed count or frequency table is…

Q: Why are students missing so much school in the district? A district administrator selects 300…

A: Survey study: The collection of the individuals information from a sample individual through their…

Q: Peter Laviolette, head coach of the Washington Capitals, would like to know if a player's number of…

A: From given data, sample correlation coefficient is found using excel. The function to be used is…

Q: Q1. John Kleman is the host of the KXYX Radio AM drive-time news in Denver. During his morning…

A: We know that sample proportion is p^=xn = 120200 =0 .60 So, 95% CI is given by : We know that Z for…

Q: The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586,…

A:

Q: Jessica Johnson is running for mayor of a small city in Florida. She needs at least 51% of the votes…

A:

Q: In a statistical study, the sample is a. The group of people or objects for which conclusions are to…

A: We know that a population is an entire group of objects which we want to study but the size of the…

Q: survey, an experiment, or an observation? Provide a brief explanation for your answer. a. A local TV…

A: (a) Observational studies are ones where the researchers observe and draw inferences based on a…

Q: 47 Find out Ginni's mean difference from the following items :- 22, 24, 26, 28, 30.

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given information- Margin of error, E = 4.5% = 0.045 Confidence level, c = 95% Since nothing is…

Q: 14) A reporter claims that less than one in four Americans believe that Facebook acted…

A: Given: Sample size, n is 1280 The number of respondents believed that Facebook act inappropriately,…

Q: Calculate the test statistics for the following scenario: 中 A local pizza shop thinks 80% of their…

A: Given : Proportion of customers who prefer Pepperoni pizza (p) = 0.80 Sample size of customers (n) =…

Q: Determine whether the given description corresponds to an observational study or an experiment. A…

A: We have to determine whether the given description corresponds to an observational study or an…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: The given data are confidence interval=90%then, α=0.1E=0.035

Q: The mean weekly salary of 9 teachers in a school is $1,000. If the school has 9 teachers and 11…

A: Mean= sum of the terms/no. of the terms

Q: A doctor is concerned that a drug treatment causes people to run a fever. She recruited n=50…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: A researcher uses an anonymous survey to investigate the study habits of American college students.…

A: Given that, the statement is "The entire group of American college students is an example of a(n)…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: The given information is as follows:The confidence level is (1–α) = 99%.From this, the level of…

Q: n Fall 2013, 10.5 million undergraduate students attended a 4-year institution full- ime. Of those,…

A:

Q: A movie studio surveyed married couples about the types of movies they prefer. In the survey, the…

A: From the provided information, Husband Wife Number of couples Action Action 20…

Q: Which of the following is a sample and not a population?     People who live in your town…

A:

Q: A statistics teacher asked two different students, Lexie and Jennifer, to go to Wegmans and sample…

A: Given information: A statistics teacher asked two different students, Lexie and Jennifer, to go to…