Supp you 2015 Scenario 1 creat 2015

Q: Based on the histogram, draw the ogive (the cumulative frequency polygon) for the data from the…

A: The cumulative frequency is, Daily Methadone dosage Frequency Cumulative frequency 0 - 49 3 3…

Q: How does the cost of shipping a standard-sized crate relate to the distance of the destination? Can…

A: distance charges 14 1400 23 2000 9 800 17 1600 10 1620 22 1900 5 620 12 1440 6 900…

Q: A population is normally distributed with µ = 86 and σ = 12. For this population, what is the 78th…

A: The population mean is 86 and population standard deviation is 12. The 78th percentile is, The…

Q: Make an illustration of how you understand the key concept of sampling. Hint: part of a whole

A: The  sаmрling  frаme  is  the  асtuаl  list  оf  individuаls  thаt  the  sаmрle  will  be  drаwn…

Q: Determine the value of the upper fence

A: The five number summary is given by Minimum = 0 Q1 = 0.5 Median = 0.95 Q3 = 2.8 Maximum = 7.3

Q: good

A: We always require data ad information as to decide on how to solve the questions in statistics. In…

Q: Draw a boxplot for the data

A: We have given 5 values as 18, 22, 33, 40, 42, 48, 85.  We know that 5 number summary of the set of…

Q: can you give the importance of  work sampling in health care?

A: Given problem Given that   Work Sampling : i) It is a type of sampling technique ii) It determines…

Q: Explain the concept ofrepresentative sampling.

A: Representative sampling: A representative sample is a subset of a population that seeks to correctly…

Q: Using the IQR definition of outliers, how many outliers are in this data set? Find the lower fence…

A: Formula for lower fence: Lower fence=Q1-1.5IQR Formula for upper fence: Upper fence=Q3+1.5IQR…

Q: Problem : In Dodge's CSP-1, it is desired to apply sampling inspection to 1 item out of every 15…

A:

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A:

Q: How is the frequency of the segmentation set?

A: Segmentation is an important part of statistics. The Heterogeneous data is divided into a…

Q: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

Q: [Interpret the graphs and statistics: Describe the shape, center, spread, and any unusual…

A: see in scatterplot we can say that listing price more between $200,000 and $600,000 and outliers…

Q: In order to estimate the population proportion with a high school education,  you need a minimum…

A:

Q: a) Explain how you can select a systematic sample of size 7 from a population of size 60.

A: Sampling designs: Simple random sampling: In simple random sampling, all the units in the population…

Q: Explain the concept of stratified sampling. How would you conduct research through stratified…

A: In stratified sampling , we divide our whole population of interest into subgroups (homogeneous)…

Q: find coefficient of variation for given sample.   45,78,42,1814,25,45,85,2,8,15,47,89,29,65

A:

Q: range, as a measure of spread, has the disadvantage of being influenced by outliers. Illustrate

A: Range is defined as the difference between the highest and lowest observation of a data set.…

Q: Describe what you see in the attached scatterplot for a sample of 20 low birth weight infants.

A: Use the Excel and Calculate the Correlation  Followings are the Steps to Calculate Correlation 1)…

Q: find sample coefficient of variation   5,6,8,8,9,11,15

A: Given data is5,6,8,8,9,11,15

Q: What is an outlier?

A: We have to describe the outlier. Outlier can be present in any dataset.

Q: is an outlier?

A: a) Outlier: The Observation which lies outside the control limit is called an outlier. an outlier is…

Q: Nhat areas make up the lowest 15.8% of the distribution?

A:

Q: During an examination of equal length of cloths, the following are the number of defects observed:…

A:

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: A politician is Interested in the proportion of voters in his district that think he is doing a good…

A: Given dataA politician is intrested in the proportion of voters in his district thet thinkhe us…

Q: A scientist surveys 2676 of the current 3308 patients taking a specific medication. What is the size…

A:

Q: Check for outliers

A: Outliers are the points in a dataset that does not follow the common trend of the data or greatly…

Q: 19 2. How can you tell whether a greater percent of customers surveyed selected veggie burger or…

A:

Q: Here is an illustration of a population survey. Identify what survey sampling method was used and…

A: There are in general 4 survey sampling methods.  Simple Random Sampling: Each member of the sample…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The 5 number summary of the data values: Min : 181st quartile : 21.5Median : 28.53rd quartile :…

Q: A researcher plans to conduct a survey. If the population on High City is 1,000,000 find the sample…

A: To calculate the sample size (n) given the population size (N) and a margin of error (e), we use…

Q: find sample coefficient of variation.     4,5,8,9,4,6,3,8,7,5,6

A:

Q: 2. Based on true statistics, list the numbers of confirmed cases of coronavirus COVID- 19 for any 10…

A: a. Let 25/11/2020 represents the day 1 and the confirmed cases of the consecutives days are listed…

Q: Identify the type of sampling that is used in this statement.   To avoid working​ late, a quality…

A: Sampling is integral to inferential statistical analysis.

Q: cluster sample.

A: Cluster sampling is a probability sampling technique where researchers divide the population into…

Q: A newspaper provided a  "snapshot" illustrating poll results from 1910 professionals who interview…

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, p is: (p̂ –…

Q: How large a sample is needed

A: Given :  Margin of error=E=3%=0.03 Significance level=α=0.01 The critical value is ,…

Q: Suppose that the results of a survey show that 53% of people consider summer as their favorite…

A: Given that Results of a survey show that 53% of people consider summer as their favorite season.…

Q: how do you determine how many observations are in the first class of a stem and leaf chart

A: The objective is to infer the no. of observations (or frequencies) in the stem-and-left plot.

Q: Problem: In Dodge-Torrey CSP-2, it is desired to apply sampling inspectigin to 1 item out of every…

A:

Q: WHAT IF? You want to estimate the number of twelfth-grade students in a high school who ride a bus…

A: Unbiased: An estimator or decision rule with zero bias is called unbiased.

Q: The five number summary of a dataset was found to be: 0, 3, 10, 15, 19 An observation is considered…

A: Five number summary contains minimum value, lower quartile, median, upper quartile and maximum value…

Q: Explain how you filled in the frequency table and answer these questions. 1. What fraction of…

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

Q: A researcher plan to conduct a survey about how capable the students are in conducting research. If…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: Determine the value of the upper fence

A: Here we have given 5 number summary  17, 25, 27.5, 33, 47 i.e. Minimum = 17 Q1 = 25 Q2 = 27.5 Q3 =…

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.