B. Identify the category of data, type of quantitative data* and scale of measurement of the given variables. (*please answer NOT APPLICABLE if your answer is qualitative) C. Identify the type of code appropriate for the given variable: 20. Age group 21. Blood type 22. Eye color 23. Home address 24. Use of drug
Q: alculate the coefficient of determination r2 Interpret the result.
A: The data can be entered in excel as:
Q: Show the five-number summary for the following data: 5, 16, 18, 9, 7, 12, 17, 9, 5. minimum first…
A:
Q: In a survey of the number of televisions (TV's) owned by households, the data would be…
A: We have to find correct answer..
Q: Among the measures of center discussed, which is the only one appropriate for qualitative data?
A: Measures of center: Mean: The arithmetic mean (also called the mean) is the most commonly used…
Q: Explain the meaning of the specified term. Population data
A: Population: A ‘population’ is defined as a set or collection of all the individual persons, objects,…
Q: Calculate the MEAN, MODE and MEDIAN for each data set.
A: Here Given the data for two schools number of exclusion.
Q: What are the measures of central locations? What do they tell us? Do they tell the full story about…
A: The average inclination is the abbreviated number that represents the average point or the normal…
Q: Write one paragraph describing the data set using the information about the mean, mode, range,…
A: The mean of gross value added for the years is 90.5875 which mean the average gross value added for…
Q: Suppose that you have a data set that contains a large number of observations. Which graphical…
A:
Q: The U.S. Census Bureau serves as the leading source of quantitative data about the nation’s people…
A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…
Q: What does The level of significance spotlights?
A: Level of significance is used in hypothesis testing. It is defined as the Type I error. The symbol…
Q: Identify which of the four levels of measurement (nominal, ordinal, interval, or ratio) is most…
A: Four types of measurement levels are as follows: Nominal level: It consists of categories in which,…
Q: Calculate the coefficient of variation for each data set. Which data set has less consistency (or…
A: The coefficient of variation is defined as CV = (SD/mean )×100
Q: Identify the Level of Measurement for the following variable: Number of businesses you own and…
A: A Nominal Scale is a measurement scale for identifying or classifying an item, in which numbers…
Q: In a study looking at undergraduate students’ perceptions of sense of community at their university,…
A: The proposed analysis is to study the perceptions of student for sense of community. This is a task…
Q: State three of the most important guidelines in choosing the classes for grouping a quantitative…
A: Quantitative variable: A variable that provides numerical values of individual and Arithmetic…
Q: Determine what the key terms refer to in the following study. Insurance companies are interested in…
A:
Q: Does this table data include mean, median, or mode? What kind of level of measure is used?
A: The data consists the monthly cost of groceries for college students of 51 states.
Q: Identify the level of measurement used for the following variables. Choose among nominal, ordinal,…
A: To identify the level of measurement used for the following variables. There are four levels of…
Q: What level of measurement classifies data into mutually exclusive (nonoverlapping), exhaustive…
A: Solution: We know that, For Nominal scale: In the nominal scale of numbers are used then…
Q: A financial advisor is putting together a report on different Exchanges on which stock is traded…
A: Values which we have to capture : Here the variable recording the names of different exchanges will…
Q: Indicate which level of measurement is being used in the given scenario. 1. The roster of a…
A: Here, we are to know about the level of measurement and the type of data.
Q: What type of analysis and descriptive statistics should be conducted to best depict the relationship…
A: 1) The number of hours in the operating room is a continuous variable and the number of hours on a…
Q: Please answer the following questions: a) XYZ Institute Students evaluation of the course they…
A: As per our guidelines, we are allowed to answer first question only. Please post b) again as…
Q: a) Determine the mean reduction in Blood pressure for subjects on a daily exercise program. b)…
A: Given : sample size (n) =12
Q: Define the following (in two or three lines). i. Statistics and Statistic ii. Population and Sample…
A: Disclaimer: Since you have posted a question with multiple subparts, we will solve first 3 subparts…
Q: is the difference between the estimated value from the sample (sample statistic) and an actual value…
A: There is some difference exist between sample statistics and population parameters
Q: Submit a short and broad description of prevalence of gambling in Australia. You should draw…
A: Gambling is a widely popular recreation and enjoyable, harmless activity with a high risk and has…
Q: Identify which of the variables is most likely to be the explanatory variable, and which is most…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Classify the following data according to its level of measurement. 16. Zip Code 17. Grade (A, At B,…
A: There are 4 levels of measurement : nominal, ordinal, interval and ration. Nominal represents…
Q: According to the 2017 Corporate Travel Index compiled by Business Travel News, the average daily…
A: The table below shows the required calculation:- Daily living cost (x) x-x2 242.87 298.996…
Q: Explain in simple words the difference between the Causal and Correlated metric types.
A: causations and correlation (connections) can exist simultaneously, relationship doesn't infer…
Q: What is the level of measurement for Fitch Outlook in this data set? Select one: A. Nominal B.…
A: We have given that data Fitching outlook Stable stable stable positive
Q: 3. The registrar wants to know if the average encoding period of time in the school automate is 30…
A: 3) The null and alternative hypothesis in words are H0 : the average encoding period of time in the…
Q: The number of stories in the 13 tallest buildings for two different cities is listed below. Which…
A: The range tells you the spread of your data from the lowest to the highest value in the…
Q: Do the concepts of class limits, marks, cutpoints, and midpoints make sense for qualitative data?…
A: Qualitative variable: A variable that is used for classification of individuals based on some…
Q: Identify the level of measurement used for the following variables. Choose among nominal, ordinal,…
A: Nominal variables are those variables which are qualitative and for which the ranking or ordering do…
Q: The following is a list of hospitals in Pasig City. We are interested in estimating the average…
A: Solution: The list of hospitals are given and numbered from 1 to 20.
Q: Identify the type of statistics researchers used when reporting demographic information such as…
A: Descriptive Statistics are a series of different descriptive coefficients that represent a data set,…
Q: A mother is creating the family budget for next year and wants to come up with a single value to…
A: Identify the correct option that correctly describes the data. The correct option is identified…
Q: Compute quartiles for the data given below: 25, 18, 30, 8, 15, 5, 10, 35, 40, 45.
A: Solution is given below:
Q: What are the four of the most important qualitative methods?
A: Let QM denote Qualitative Methods
Q: What is the level of Measurement and type of data?
A: Level of measurement describes the nature of data The four levels of measurement are : nominal,…
Q: How could the survey type of study be helpful in arriving at solutions to the crime problem in large…
A: Please find the explanation below. Thank you
B. Identify the category of data, type of quantitative data* and scale of measurement of the given variables. (*please answer NOT APPLICABLE if your answer is qualitative)
C. Identify the type of code appropriate for the given variable:
20. Age group
21. Blood type
22. Eye color
23. Home address
24. Use of drug
Step by step
Solved in 2 steps
- A study was conducted by a group of neurosurgeons. They compared a dynamic system (Z-plate) and a static system (ALPS plate) in terms of the number of acute postoperative days in the hospital spent by the patients. The descriptive statistics for these data are as follows: for 14 patients with dynamic system, the sample mean number of acute postoperative days was 7.36 with standard deviation of 1.22; for 6 patients with static system the sample mean number of acute postoperative days was 10.5 with sample standard deviation of 4.59. Assume that the numbers of acute postoperative days in both populations are normally distributed. We wish to estimate µ1 − µ2 with a 99 percent confidence interval. Can you assume unknown population variance are equal. a. Degrees of freedom and t-value are b. Margin of error and confidence interval are c. Based on your interval in part (b), we can state with 99 percent confidence that the average numbers of acute postoperative days in two populations i.…A study was performed looking at the risk of fractures in three rural Iowa communities according to whether their drinking water was “higher calcium,” “higher fluorides,” or “control” as determined by water samples. Table 11.10 presents data comparing the rate of fractures (over 5 years) between the higher-calcium vs the control communities for women ages 20–35 and 55–80, respectively . Table 11.10 Relationship of calcium content of drinking water to the rate of fractures in rural Iowa Ages 20-35 Number of women with fractures Total number of women Ages 55-80 Number of woemn with fractures Total number of women Control 3 37 Control 11 121 High calcium 1 33 High calcium 21 148 13.1 What test can be used to compare the fracturerates in these two communities while controlling for age? 13.2 Implement the test in Problem 13.1, report a p-value, and make a conclusion on relationship between drinking water calcium concentration and rate of fracture based on the p-value. 13.3…A study was performed looking at the risk of fractures in three rural Iowa communities according to whether their drinking water was “higher calcium,” “higher fluorides,” or “control” as determined by water samples. Table 11.10 presents data comparing the rate of fractures (over 5 years) between the higher-calcium vs the control communities for women ages 20–35 and 55–80, respectively . Table 11.10 Relationship of calcium content of drinking water to the rate of fractures in rural Iowa Ages 20-35 Number of women with fractures Total number of women Ages 55-80 Number of woemn with fractures Total number of women Control 3 37 Control 11 121 High calcium 1 33 High calcium 21 148 13.1 What test can be used to compare the fracturerates in these two communities while controlling for age? 13.2 Implement the test in Problem 13.1, report a p-value, and make a conclusion on relationship between drinking water calcium concentration and rate of fracture based on the p-value.
- A health insurance company in country A sells policies to tourists who intend to visit the US for less than 3 months. To limit its financial exposure, it requires applicants to undertake a physical examination and meet specified criteria for different tests. To simplify the problem, let us assume that only one test is done and it measures cholesterol level of the applicant. Historical records in country A indicate that cholesterol level is normally distributed with a mean of 225 milligrams per deciliter (mg/dL) and a standard deviation of 39.5 mg/dL. High cholesterol levels increase the risk of a cardiovascular incident, for which the company may need to make major insurance payouts. The premium charged is a flat $3000/person for those who qualify. For planning purposes, assume the company will get 100,000 applications in a particular year. [show your calculations for all parts] a. The current threshold T for cholesterol is set by the company at 250 mg/dL. Anyone whose test result is…An analysis was conducted by the Statistics Consulting Center atVirginia Polytechnic Institute and State University in which acertain treatment was applied to a set of tree stumps. The chemicalGarlon was used the with the purpose of regenerating the roots ofthe stumps. A spray was used with four levels of GarlonPage 23 of 23concentration. After a period of time the height of the shoots wasobserved. Does the concentration of Garlon has a significantimpact on the height of the shoots? Use α = 0.05.An engineer wants to compare the tensile strengths of steel bars that are produced using a conventional method and an experimental method. (The tensile strength of a metal is a measure of its ability to resist tearing when pulled lengthwise.) To do so, the engineer randomly selects steel bars that are manufactured using each method and records the following tensile strengths (in Newtons per square millimeter). At α=.10, can the engineer claim that the experimental method produces steel with greater mean tensile strength? Should the engineer recommend using the experimental method? First use the F test to determine whether or not to use equal variances in choosing the model.(??? ????? ?? ???? ?̅ ??? ? ??? ???ℎ ???ℎ??) Experimental 395 389 421 394 407 411 389 402 422 416 402 408 400 386 411 405 389 Conventional 362 352 380…
- During the 1990s, the fatality rate for lung cancer was 80 per 100,000 people. After the turn of the century and the establishment of newer treatments and adjustment in public health advertising, a random sample of 10,000 people exhibits only six deaths due to lung cancer. Test at the 0.05 significance level whether that data are proof of a reduced fatality rate for lung cancer. b. Make the decision rule. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) c. Evaluate the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fully biodegradable and biocompatible, is obtained from renewable resources. From a sustainability perspective, PHB offers many attractive properties though it is more expensive to produce than standard plastics. The accompanying data on melting point (°C) for each of 12 specimens of the polymer using a differential scanning calorimeter appeared in an article. (b) the sample variance s2 from the definition [Hint: First subtract 180 from each observation.] (c) the sample standard deviation (d) s2 using the shortcut methodIn this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this question with the results of a statistical procedure. Use α = 0.05.
- In this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this question with the results of a statistical procedure. Use α = 0.05. Data: May= 66, June= 104, July=105, August= 88In this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Part A: Does the mean E. coli contamination differ significantly among the four months? Justify your answer to this question with the result of a statistical test. Use α = 0.05. Part B:Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this…Explain Consistency and Asymptotic Normality of the OLS Estimators?