A researcher wants to study the behaviours of postgraduate students in Australia in mobile phone usage. One of the goals of the study is to find out the first app the students open every morning.  The researcher collected a random sample of 1250 postgraduate students from 3 big universities in Sydney and asked them to fill in a questionnaire.  Are the data collected by the researcher considered as primary or secondary data? Explain

Q: You are required to test at the 5% level of significance the hypothesis that the average monthly…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: ods which might be use to select the sample households.

A: Answer Specifically for an outsized population, the tactic that is additional in usage is sampling,…

Q: A large policy debate revolves about the causes and consequences of child labour. Extensive child…

A: When you think about child labour you will immediately consider child slaves who need to work all…

Q: Do answer and explain reason.  Statistical inference is the process of _____. a. using data from a…

A: statistical inference is a method by which interference about a population is made, based on sample…

Q: Identify the appropriate test to use for the following scenarios: The population of American adults…

A: T- test is a statistical test which is conducted two determine if there is difference is difference…

Q: 7. The County Clerk mailed a survey to a total of 500 voters. The sample included 125 voters…

A: From a total of 500 voters, 125 voters are selected randomly from each of the registered groups. In…

Q: Which of the following statements about the sample correlation coefficient is TRUE. A. | rxyl <1…

A: The coefficient of correlation refers to the value that provide information about whether two…

Q: Econometrics has evolved as a separate discipline from mathematical statistics because the later…

A: Economics is defined as a social science which relates to the study of allocation of scarce…

Q: Following the increase in price of a 250g bag of coffee from £2.35 to £2.65 in a local supermarket,…

A: The response of a good or service's supply to a change in its market price is measured by its price…

Q: Read the executive summary thoroughly and attempt the questions given below: The prevailing of fast…

A:

Q: A recent study focused on the number of tim Sample Size Sample Mean Po Men 29 27 Women 34 32 At the…

A:

Q: A university professor tracks the mean final grade and class size of her first-year statistics…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Suppose you want to determine the reading literacy of freshmen college students in NJ. Describe how…

A: These are different methods of sampling. The steps that will be followed in each case are :   Part…

Q: Some years ago, a new brand of toothpaste was introduced in the United States. According to its…

A: The sum/addition of all the values in a set is divided by the total number of values in the set to…

Q: I asked this question but didn't receive a response. How do I answer this? I believe my answer is…

A:

Q: The survey about the kind of movie they like the best was done between some students. The answers…

A: The kind of movies are:

Q: Suppose a national survey of women was conducted in the years 1972, 1974, 1976, 1978, 1980, 1982,…

A: the coefficient of y84 is -0.65. this implies holding education age and race constant 100 women in…

Q: five-star restaurant has the business objective of improving customer waiting time during the…

A: The mean of the two groups is: Location 1 mean= 4.29 Location 2 mean = 7.11 The standard deviation…

Q: States (and provinces) that have control over taxation sometimes reduce taxes in an attempt to spur…

A: (i) Generally for the best result, primary and secondary data collection is necessary. For…

Q: In 2009 a survey found these airline preferences for people in Southeast Asia when choosing to fly…

A: According to the 2009 survey, airline preference for Southeast Asia people when choosing to fly…

Q: A manufacturer of cat food was planning to survey households in the US to determine purchasing…

A: A group of individuals/items having similar traits on which specific research is conducted is known…

Q: Out of a total number of 1,807 women who were interviewed for employment in a Textile factory of…

A:

Q: Vida Dampo is the purchasing clerk for Adanfopa Company. Adanfopa sells car filters. One of the most…

A: annual demand    = 4000 cost of filter          = 90 Inventory carrying cost = 90* 10%=9 Cost per…

Q: An alumni coordinator is interested in studying the performance of CoE EM alumni. She clustered the…

A: Cluster sampling is a probability sampling approach that divides the population into different…

Q: The single entity of interest is a single Sample O Unit Variable Statistic

A: When talking about entity of interest, it implies the parties or stakeholders related to a specfiic…

Q: A researcher is interested to search students’ willingness in participating in sport. Students are…

A: Sampling is the method of collection of data in which some items from population is taken and…

Q: A researcher wants to study about the behaviours of postgraduate students in Australia in mobile…

A: Variables are the factors that vary, variables are important part of research analysis.

Q: Consider the following two sample data sets. Set 1: 9763 2 Set 2: 5 10 1397 a. Calculate the…

A: Coefficient of Variation is a measure of dispersion which is the ratio of standard deviation to the…

Q: Consider the following data:

A: Since the question you have posted consists of multiple parts, we will answer the first question for…

Q: The following 3 observations of variables X and Y were collected. 13 Y 17 24 43 (a) Calculate the…

A: Mean is referred to as the mathematical average of a set of two or more numbers.

Q: Imagine that you were told that the t-statistic for the slope coefficient of the regression line…

A: Here the situation is about the t-statistic for the slope coefficient of the regression line Test…

Q: Following are the marks obtained by a batch of 10 students in a certain class test in Statistics (X)…

A: In the given table, marks of statistics and accountancy of 10 students are given.

Q: xamp

A: Analysis is the process of breaking up of a complex topic or substance into smaller parts for…

Q: . Among the adult population of a certain town 50% are male. 60% are wage-earner and 50% are 45…

A: Given:- Adult population, 50% are male 60% wage earner 50% are of age 45 or more Please find the…

Q: What do you mean by Scatterplots, the Sample Covariance, and the Sample Correlation?

A: Scatterplot is a display of data type that visualizes the relationship between 2 variables that are…

Q: In sample 400 parts manufactured by a factory, the number of defective parts was found to be 30. The…

A: Introduction Total manufactured part = 400 Total defective part  = 30 Now company claim that there…

Q: the college of science surveys its graduating students to determine the starting salaries and the…

A: Given, n=100 courses Number of students BS-Biology 85 BSM-CS 102 BSM-BA 78 BSM-AS 75…

Q: Explain in details the importance of collecting a representative sample to answer a question about a…

A: Representative sampling is a type of sampling that reflects the accurate characteristics of the…

Q: Sir Francis Galton, a cousin of James Darwin, examined the relationship between the height of…

A: Estimated regression we have Studenth(hat) = 19.6 + 0.73 × Midparh

Q: What is differance between three sector ecnomoy and four sector ecnomoy

A: An economy is usually represented in a simplified circular model that constitutes a minimum of two…

Q: Managing Ashland MultiComm Services PHASE 1 TABLE AMS12.1 Number of Subscribers Who Continue…

A:

Q: Woolworth wants to improve their sales. Your independent variables are prices, marketing methods,…

A: Sales is the finalized process of an industry. An industry gathers small firms and choose the better…

Q: Bank clients were asked to indicate their level of satisfaction with the service provided by the…

A: The data can be plotted on a graph and the graph or diagrams can be many like the bar diagram, line…

Q: William's Department Store is trying to determine whether there is a difference in mobile…

A: The provided output is:

Q: What do Levitt and Dubner mean by the term "pimpact"?(choose right answer) a:an analysis of the data…

A: The answer is - d. The analysis of data gathered from street prostitutes indicates that the payment…

Q: Heteroskedasticity Test: White Null hypothesis: Homoskedasticity F-statistic 8.030204 Prob. F(3,6)…

A: Homoscedasticity is the main assumption in the OLS regression analysis, as it is important for OLS…