(6) A student surveys some students on campus in the evening and finds that 16 out of 20 of the students she interviewed are part time students. She uses the data to estimate the percentage of all students who are part time. What type of bias is present in her sample?

Q: Let's say we choose two employees at random from a corporation, and we track whether the chosen…

A:

Q: 3.1 Construct a 95% confidence interval for the proportion of South Africans who avoided fat in…

A: From given data we have : for 2010 survey sample size=n1=1250 Proportion (Avoided fat)=p^1=0.55 for…

Q: am interested in the difference between a learners academic achievement and whether he/she takes…

A: Treatment x  Treatment y 1 85 86 2 86 67 3 88 65 4 82 68 5 88 68 6 90 79 7 92 79 8…

Q: It is known that average house prices today is $371,040 higher compared to 10 years ago and median…

A: Given that:   Current 10 years ago Mean 892.44 521.4 Median 900 518 Mode 816 516 Q1 816…

Q: Solve for the sample size: Determine the sample size necessary to estimate the proportion of people…

A:

Q: Determine whether the study is an experiment or an observational study, and then identify a major…

A: Let us first define what is observational study and experimental study Observational study: In an…

Q: Suppose x is a uniform random variable with a = 100 and b = 180. Find P(x > 120 | x < 140).…

A:

Q: Use Microsoft Excel or other software to create a scatter plot of the relationship between elevation…

A: Given information: Elevation (km) Density (kg/m3) 0 1.225 1 1.112 2 1.007 3 0.9093 4…

Q: Two small separate between-subjects design experiments were performed and their means are given in…

A: Given information: Experiment 1       Experiment 2   Level A1 Level A2 Significance (ANOVA)…

Q: . Which of the following forecasting method will you use? . What are your basis in choosing for your…

A: We have data of a firm's actual market share for 12 months. The data can be visualized using a…

Q: In the data set below, the integer 5 exists in the 30th percentile ranking. 1 1 1 2 2 2 2455789 9 10…

A: The question is about percentile rank Given : To check : True / false : Integer 5 exists in 30th…

Q: USE DESCRIPTIVE STATS A report shows that Covid-19 reduced household expenditure in Europe by 8% in…

A: Given Information: Consider the given dataset: Average Monthly Household Expenditure (SG$)…

Q: Calculate the probabilities of the following birth orders for a couple that has four children.…

A: given data couple has four childrens. assume none of children are twins.

Q: Identify which of these types of sampling is used: random, systematic, convenience, stratified, or…

A: given data we have to identify type of sampling used method : a market researcher has partitioned…

Q: 5. How many license plates can be made using either two or three uppercase English letters followed…

A: The following information has been provided: The total number of uppercase English letters=26 The…

Q: What is the standard deviation in respiration rate for the three fish?

A: From given data we have N=3 Water temperature (degrees C) Fish respiration rate (bpm) 14 76…

Q: Determine the covariance and correlation for the following joint probability distribution: x 1 1 2 4…

A: Introduction: It is required to find the covariance and correlation for the given joint probability…

Q: The weekly wages (to the nearest K) of the production line workers in small factory is  shown in the…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: X p(x) An certain brand of upright freezer is available in three different rated capacities: 16 ft3,…

A:

Q: (a) Compute E(Y). E(Y) = (b) Suppose an individual with Y violations incurs a surcharge of $110Y2.…

A: Given: y 0 1 2 3 p(y) 0.6 0.25 0.1 0.05

Q: 11. BUILD PERSEVERANCE Brand A dish detergent costs $2.48 for a 21.6-ounce bottle. Brand B costs…

A: ''Since you have asked multiple questions, we will solve the first question for you. If you  want…

Q: If a discrete random variable X has the following probability distribution: X -2, - 1, 0,…

A:

Q: Twelve different video games showing violence were observed he duration times of violence were​…

A: Given that Twelve different video games showing violence were observed he duration times of violence…

Q: A math class consists of 25 students, 14 female and 11 male. Three students are selected at random…

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

Q: State whether the data described below are discrete or continuous, and explain why. The exact depths…

A: Discrete and Continuous Data: Discrete data are the ones with identifiable gaps between the…

Q: Scores 51-58 59-66 67-74 75-82 83-90 91-98 Find Σ fX2. Class Mark, X 54.5 62.5 70.5 78.5 86.5 94.5…

A: Given, Scores Class Mark(X) Frequency(f) 51-58 54.5 3 59-66 62.5 7 67-74 70.5 15 75-82…

Q: Number of children in your family (including you) Expected grade in this course ( A,B,C,D) Favorite…

A: The question is about types of data and levels of measurement Introduction : Quantitative variable :…

Q: escribe the shape of the distribution of the Revenue varia

A: Given: Revenue     9281 10340 10628 13639 11649 13028 13684 17122 13920 16237…

Q: Suppose that x has a normal distribution with mean ? = 50 and standard deviation ? = 5. Find P(x >…

A:

Q: Weight/Height Tall Medium Short Totals 18 28 20 51 12 25 Obese Normal Underweight Totals 14 28 9

A: The tables the weight and height.

Q: If Cov(Xm, Xn) = mn − (m + n), find Cov(X1 + X2, X3 + X4).

A:

Q: Construct a two-way table given the information below. The eighth grade class at Middleton Middle…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A local bookstore holds a book signing for a famous author. Avid readers arrive at the rate of 45…

A: Queuing theory is used to measure the waiting time and service time in the system. Arrival time is…

Q: 1) Suppose x is a random variable best described by a uniform probability distribution with a = 30…

A: Given that: (a)X~Ua,b=U30,50 (b)X~Ua,b=U40,80 (c)X~Ua,b=U30,110 The probability distribution…

Q: The National Institute of Standards and Technology (NIST) offers a wide variety of “standard…

A: Given: Mean and standard deviation for population given. Mean(μ)=6.244Standard deviation(σ)=0.131

Q: For the following set of scores, find the value of each expression: Participant A ΠΣΧ2 = (ΣΥ)2 . EXY…

A: given data No. of observations n = 5 participant x y x2 xy A 5 1 25 5 B 3 3 9 9 C 0 5 0 0…

Q: Interpreting and Analysing Data 82 people were surveyed as to how many TVs they had in their homes.…

A: Range is the measure of dispersion. It measure the spread of data in the observations. It is…

Q: Café Michigan's​ manager, Gary​ Stark, suspects that demand for mocha latte coffees depends on the…

A: given data,  VALUE OF X           VALUE OF Y  2.6                          760 3.5…

Q: Q.1a Write the pdf of a normal random variable and a standard normal random variable. If the annual…

A: Note: Hi! Thank you for your question. As per the guideline we can solve one question at a time in…

Q: a) Verify that these two lotteries have the same expected value but that lottery B has a bigger…

A: For lottery A, 0.11 chance that you receive a payoff of $10. 0.10 chance that you receive a payoff…

Q: The number N of bacteria in a glass dish after thours satisfies the relationship log10(M) = 0.3 + 2t…

A: Given that: log10N=0.3+2t Here, N is the number of bacteria in a glass dish after t hours.

Q: Wire rope has many applications, especially in hoisting and suspension. The fatigue limit, measured…

A: Box plot are used to determine the spread of the data. It explain whether the observation is…

Q: Express the confidence interval 52.7%±7.2%52.7%±7.2% in interval form. Express the answer in…

A: We have given that confidence interval as+ 52.7% ± 7.2% =&gt; 0.527 ± 0.072   Now, in interval form…

Q: The viscosity of a liquid detergent is supposed to average 800 centistokes at 25°C. A random sample…

A: given data n = 16 x¯ = 812σ = 25claim : μ=800

Q: son probability distribution, with an arrival rate of 18 customers per hour. The checkout service…

A: Given: Arrival rate λ = 18 customers per hour Service rate μ = 20 customers per hour The main goal…

Q: R5.28. Genetics Two human traits controlled by a single gene are the ability to roll one's tongue…

A: The question is about categorical data analysis Given : According to theory, traits in the ratio…

Q: Consider the demand for Fresh Detergent in a future sales period when Enterprise Industries' price…

A: a) The 95% prediction interval: The 95% lower mean demand is 7.7348 The 95% upper mean demand is…

Q: ind the critical value. Do not round – provide the exact critical value below. Label it “critical…

A: G1 G2 60 70 65 85 69 72 58 83 57 81 59 69 52 65 72 75 70 79 65 71 75 80

Q: a jury of 16 people is selected from 24 people: 12 women and 12 men. What is the probability (to the…

A: From the provided information, A jury pool consists 24 people. Total men = 12 Total women = 12

Q: When performing follow-up tests after Analysis of Variance, the problem of multiple comparisons must…

A: Given information: When performing follow-up tests after Analysis of Variance, the problem of…