Statistics Question

Q: In the Western United States there is a saying, "Whisky is for drinken but water is for fighten!" Wa...

A: For river1 let us have :   r1=c(25.9,32.4,33.1,19.1,17.5,24.9,21.0,45.1,30.8,34.3,27.1,29.1,25.6,31....

Q: Below represents the amounts that a random sample of employees reported that they spent on dinner la...

A: Given that amount of employees reported that they spent on dinner last as, 7,12,36,50,50 Here sample...

Q: Which of the following Python methods in statsmodels module is used to perform hypothesis test for a...

A: The statsmodel module in python allows for a variety of statistical tests and models as functions to...

Q: (a) Find the class width.(b) Make a frequency table showing class limits, class boundaries, midpoint...

A: While constructing a frequency distribution it is preferable to maintain equal class width. Class Wi...

Q: In  a  particular  community,  65  percent  of  households  include  at  least  one  person  who  ha...

A: Let X be the number of households including at least one college graduate from the 100 samples.Also,...

Q: Statistics Question

A: Given that relative risk of developing lung cancer among individuals who smoke is 15.  Relative risk...

Q: Marissa splits her expenditures for a particular month into four categories, as shown below Food Ren...

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Q: Statistics Question

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Q: Given the probability distribution below. (a) Find P(X = 1).(b) Calculate the expected value E(X).X ...

A: X P(X) 0 0.08 1 ? 2 0.42 3 0.38 The sum of all probability is equal to 1.    

Q: The increases (in cents) in cigarette taxes for 17 states in a 6-month period are 60, 20,40, 40, 45,...

A:   The range can be calculated as: Range = Maximum Value – Minimum Value             = 70 – 8        ...

Q: Explain Cumulative probability distribution ?

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Q: The following data set indicates the time taken (in minutes) for a sample of eleven employees of com...

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Q: 6.) The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons...

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean ...

Q: A production process is checked periodically by a quality control inspector. The inspectorselects si...

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Q: The Etruscans. Anthropologists are still trying to unravel the mystery of the origins of the Etrusca...

A: a) Box plot: Step-by-step procedure to draw the box plot using the MINITAB software: Choose Graph &...

Q: 42. Doctoral Assistantships Of Ph.D. students, 60% have paid assistantships. If 3 students are selec...

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Q: With continuous random variables, we never calculate the probability that X has a particular value,b...

A: The continuous random variable takes any values within two admissible values and the probability dis...

Q: A magazine's list of the world's most admired companies for 2014 is provided in the data below. The ...

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

Q: Frogs have been breeding like flies at the Enormous State University (ESU) campus! Each year, the pl...

A: Introduction: The equation for the exponential model on t would be of the form: f (t) = abt, for con...

Q: A group of students take a Statistics Exam where the average was M = 90 and the standard deviation w...

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Q: What is the median and mode?

A: From the provided data we have,

Q: Three group of researchers would like to seek your help to determine the methods of data collection ...

A: Methods of data collection: Data can be of two types, i.e, Quantitative and Qualitative. As per the ...

Q: A researcher plans to select a random sample from a population with o=20 what is the minimum sample ...

A: Sample Size: Sample size refers to the number of observations or replicates included in a study. Usu...

Q: Assume a research wants to compare the mean Alanine Aminotransferase (ALT) levels in two populations...

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Q: The table below contains data about the cost of electricity during a recent month for a random sampl...

A: Given data of cost of electricity during a recent month of a random sample of 30 one bed room apartm...

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.4 years...

A: Given observation Mean = 3.4 Standard deviation = 0.9  

Q: A contractor is considering a sale that promises a profit $26000 with a probability of 0.7 (due to b...

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Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a pu...

A: Consider a random variable X which represent the number internet users who are more careful about pe...

Q: advertising age annually compiles a list of the 100 companies that spend the most onadvertising. Con...

A:  (a) The annual advertising expenditures for a sample of 20 companies in automotive sector and 20 co...

Q: 1. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.7 ye...

A: The standardized version z of a variable x is the ratio of the difference of mean μ from the data po...

Q: Find P(X > 5)

A: The probability distribution is given by: f(x) =(1/4)e(-x/4)    for x>0

Q: Big Blossom Greenhouse was commissioned to develop an extra large rose for the Rose Bowl Parade. A r...

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Q: A presidential candidate plans to begin her campaign by visiting the capitals in 3 of 44 states. Wha...

A: From the provided information, Total number of states = 44 Number of capitals to begin from = 3 Numb...

Q: The authors of the paper "Statistical Methods for Assessing Agreement Between Two Methods of Clinica...

A: (a)   Define y as wright meter reading and x as wright meter.   Excel Procedure:   Enter y and x in...

Q: For   amultiple regression analysis,we  have  twoi independent varaibles  and one  dependent variabl...

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Q: Compute for the MEASURES OF POSITION &VARIATION of the grouped data: a) MEAN b) MEDIAN c) MODE

A: Since you have posted a question with multiple sub-questions, we will solve the first 3 sub-question...

Q: U and V are mutually exclusive events. P(U) = 0.23P(V) = 0.37  Find: P(U AND V) =           P(U | V)...

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Q: a decade-old study found that the proportion, p, of high school seniors who believed that "getting r...

A: From the provided information, Population proportion (p) = 0.70 Sample size (n) = 215 Out of which 1...

Q: The following data set indicates the time taken (in minutes) for a sample of eleven employees of com...

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Q: The following grouped frequency distribution table indicates the ages of passengers (in years) on th...

A: To calculate median for the given data. Formula used to calculated median is: Median=l+hfN2-c L: low...

Q: Already have the 1st question just need the 2nd question

A: Step-by-step procedure to draw the scatterplot using Excel: In Excel sheet, enter and select X in o...

Q: 14b) Find the median for the scores in the following frequency distribution table: Number Freq...

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Q: In the Western United States there is a saying, "Whisky is for drinken but water is for fighten!" Wa...

A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have solved t...

Q: Nine homes are chosen at random from real estate listings in two suburban neighborhoods, and the squ...

A: Let μ1 is mean of home sizes in Greenwood, and μ2 is mean of home sizes in Pinewood. The hypotheses ...

Q: Amendment A TV news reporter says that a proposedconstitutional amendment is likely to win approval ...

A: Confidence intervals specify a range of values such that the value of the parameter lies within that...

Q: Climate change and CO2 2011 Data collected fromaround the globe show that the earth is getting warme...

A: The regression line is obtained as:

Q: Please complete all parts

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, as per t...

Q: With a binomial distribution with n = 25 and p = 0.48, which is larger?     P(12 successes) ...

A: Given:  

Q: A sample of 15, 10 years -old children was taken to study whether watching television reduces the am...

A: Introduction: We have solved the problem using Excel. First, we have entered the data as shown below...

Q: For each of the following variables, tell me level of measurement and what statistic you would use t...

A: Introduction: Levels of measurement: Nominal: When the possible observations are tags or categories ...