A study is being conducted of the faculty salaries for a public university. Of the 1200 tenuretrack faculty, 480 are full professors, 336 are associate professors and the remaining are assistant professors. A simple random sample of 100 full professors, 50 associate professors and 50 assistant professors will be taken and information about salary will be obtained. (5)a. What type of sampling method is used to obtain the 200 selected faculty members?b. Use your calculator (with a seed value of 18) to give the labels for the first 5 full professors to be selected.

Q: What is the method of the sampling when the marketing manager for an electronics chain store wants…

A: stratified sampling Stratified sampling :- When we have Homogenous distinguishable sub-groups. Then…

Q: Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place,…

A: let we make the table for given dataDays Worked Last Year by 23 employees Department days worked…

Q: The U.S. Census Bureau computed the proportion of U.S. residents who lived in each of the four…

A: Solution: Given information: k= 4  Categories  n= 80+129+209+118 = 536  total observation   α=0.05…

Q: The computer science department is making a new recruitment poster for computer science majors and…

A: List of formulae :

Q: A consumer protection group regularly monitors gas prices in southern California.  One day (several…

A: 3.95 4.07 4.14 4.04 4 3.93 3.98 4.01 3.9 4.03 4.13 3.88 4.03 4.1 3.81…

Q: The estimate is: _________ give or take___________ Fill in the blanks with the given options

A: Given that,

Q: Forty new employees hired at the same time are randomly divided into two groups. One group receives…

A: Experimental Study: If some treatments are applied on the individuals in order to observe the…

Q: test statisu tnis nypotnesis test. | (Round to two decimal places as needed.)

A: p1 = 352/1100 = 0.32 p2 = 275/1100 =0.25

Q: Jamu Sido Mampir Company has herbal medicine cottage branches in three locations. The company…

A: NoHerbal Hut 1Herbal Hut 2Herbal Hut…

Q: Nicole Sturgous is curious about whether Pawnee National Park gets more visitors per year than the…

A: A paired samples t-test is used to determine whether the population mean difference of two dependent…

Q: Suppose you are assigned the number 1, and the other students in your statistics class call out…

A: In this case, we need to choose correct answers for the given statements.

Q: We want to learn about the country of origin, gender, NYC borough of residence, ethnicity, and age…

A: A sample is a subset of a population, whereas a population is a full set that represents every…

Q: Suppose you want to choose a sample of 50 students from a school of 400. Explain why the following…

A: Given data suppose you want to choose a sample of 50 students from a school of 400

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: Below are the data from the study described in lecture about assessing whether Beagles or German…

A: The random variable digging follows normal distribution. There are two independent samples which are…

Q: small liberal arts college in the Northeast has 350 freshmen. 105 of the freshmen are education…

A: Given that, a small liberal arts college in the Northeast has 350 freshmen. 105 of the freshmen are…

Q: About 10% of the population has a particular genetic mutation. 100 people are randomly selected.…

A: X= Number of people with the genetic mutation  p=probability of the population has a particular…

Q: According to the most recent data, 10.6% of engineers (electrical, mechanical, civil, and…

A: Given  p=10.6%, n=75

Q: One study of grand juries in Alameda County, California, compared the demographic characteristics of…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: (c) Send a team of five research assistants to Bishop Street in downtown Honolulu. Let each…

A: Cluster sampling: Cluster sampling is defined as a method of sampling in which, at first, the entire…

Q: Kim Kardashian is interested in studying the phenomenon of selfies more deeply.  She randomly…

A: It is very difficult for the researchers to examine each of the individual units that consist in the…

Q: Suppose that a middle school is using two different teaching formats for their 6th grade math…

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

Q: . A large suburban school wants to assess student attitudes towards their mathematics textbook. The…

A: The population is the set of all objects of interest. The sample is s subset of the population. It…

Q: A food service director for a national corporation suspects that people are more likely to order…

A: Chi square χ2 test: Chi square test is used to test whether the distributions of categorical…

Q: n a city, according to a 1990 demographic report based on the census result, the average daily…

A: (a)   Obtain the point estimate for the population mean daily spending on food per person in year…

Q: A child has an enormous jar in which she has been saving all of her spare change. In order to…

A: She dumps all of the coins.

Q: Suppose you are the president of the student government. You wish to conduct a survey to determine…

A: The systematic sampling method is the method in which the sample point is selected at a regular…

Q: gym manager is interested in whether the ‘beginner’ and ‘expert’ climbing walls (that were of the…

A: A gym manager is interested in whether the ‘beginner’ and ‘expert’ climbing walls (that were of the…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.