Identify the level of measurement of the data , and explain what is wrong with the given calculation. In a set of data , blood lead levels are represented as 1 for low , 2 for medium , and 3 for high . The average ( mean ) of the 642 blood lead levels is 1.3

Q: For this set of data, the standard deviation (s) is equal to: 9, 8, 10, 5, 5, 2, 3, 6, 3

A: Mean:The formula for finding mean is shown below:

Q: Find the median of the data using an empirical formula, when it is given thatMode= 35.3 and mean =…

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Q: What is the scale of measurement that is most appropriate for each of the following variables? •…

A: For any measurement , data can be classified as being on one of four scales: nominal, ordinal,…

Q: For a set of data that are distributed in a bell or mound shape, approximately what percentage of…

A: In particular, the empirical rule predicts that 68% of observations falls within the first standard…

Q: The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency…

A: Cumulative frequency: It can be calculated by adding the frequency of the first class interval to…

Q: For Problem 19.33 , determine the probability (assuming normal distribution) that a bottle would be…

A: The frequency distribution table is given below: The formula to find mean for any sample is,…

Q: In an exam, students in a class scored as follows: S= [45, 67, 95, 89, 88, 40, 90, 88, 56, 78, 88,…

A:

Q: Answer the statistical measures and create a box and whiskers plot for the following set of data.

A: Given data: 3,3,7,9,11,11,15,18,19,19

Q: The national mean annual salary for a school administrator is $90,000 a year. A school official took…

A:

Q: (a) Determine the mean and the standard deviation for each data set.

A:

Q: Explain four different levels of data measurement with an example for each

A: The four fundamental levels of measurement scales used to capture data in the form of surveys and…

Q: Given that the mean of a set of data is 40 and the standard deviation is 2, what is the coefficient…

A: Given,standard deviation(σ)=2mean(μ)=40

Q: For the data described​ below, identify the level of measurement as​ nominal, ordinal,​ interval, or…

A: Q) For the data described​ below, identify the level of measurement as​ nominal, ordinal,​ interval,…

Q: What percent of the data fall below the 1st quartile?   1.  0% 2. 25% 3. 50% 4. 75% 5. 100%

A: The first quartile is denoted by Q1 and this is the median of lower half of the data set.

Q: which of the following is the best measure of central tendency for sex? median 2, mode 2 or mean…

A: The provided information is  Median=2 Mode=2 Mean=1.64 The mean is the most frequently used measure…

Q: O Positively skewed, and the mean is to the left of the median. dinn

A: Given: Histogram we want to find skewness and where the mean located in relation to the median

Q: In Exercises, we have provided simple data sets for you to practice the basics of finding a…

A: The data is 2, 5, 0, –1. The population size is 4.

Q: To which percentie,quartile and decile does the median correspond?

A: We want to find the relationship between median, quartile, percentile, decile

Q: Is the number of limbs a person has considered discrete data?

A: Discrete data can only take distinct values. There may be finite or infinite number of those values,…

Q: The deviation of an entry x in a population data set is the difference between the entry and the…

A: Note: Hi there! Thank you for posting the question. It is considered that the deviation is taken…

Q: The central position of the data set is measured by of the following. а. All b. Mode С. Mean d.…

A: Descriptive statistics can be used for explanatory data analysis. This will give a basic idea about…

Q: Which of the following is not a measure of position? a First Quartile b. Median C. Mean D, Fourth…

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Q: When is it best to use the mode as a measure of center? Describe what type of data would lead you to…

A: The mode is the least used of the measures of central tendency and can only used when dealing with…

Q: which in the picture is an estimator for the population mean µ?

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Q: Find the 5 number summary for the data shown 9. 18 20 35 44 47 48 64 65 97 5 number summary: Use the…

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Q: Consider the following data set, which was collected from student volunteers in 2009. The table…

A: It is given that Total number of words = 60 Proportion is calculated as Proportion = frequency/Total

Q: Male and female athletes exercised for an hour on a treadmill. During this time, half of each sex…

A: To use: What statistical test should be used to see how sex and type of beverage affect lactic acid…

Q: The population mean, u, is a measure of

A: According to the given information, we havePopulation mean, μ is given.

Q: When describing a data set, the mean is used with and the median is sed with Z-scores are used to…

A: When describing a data set, the mean is used with average and the median is used with middle value.

Q: Which term describes a response that varies greatly from the majority of the other responses in…

A: An outlier is a value in a random sampling from a population that deviates abnormally from other…

Q: a. What is the level of measurement for the variables "Participant" and "Hours"

A: Here, The data of number of participants and number of sleep hours of each participants are given.…

Q: What value corresponds to the 61 percentile in the following data set? 35,10,28,59,44, 48,51 O A.…

A:

Q: What is the value of the third decile in the following set of data? 27, 21, 22, 23, 15, 19, 20, 24,…

A: Since you have posted multiple questions and we can answer one question. So, answered the first…

Q: If a z-score value of a data set is 1.35 what percentile does this correspond to?

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Q: With what level of data is a histogram most appropriately used?

A: Our aim is to describe "With what level of data is a histogram most appropriately used"

Q: If a data set has 15 mean standard daviation 2 , percentage observation lie between 13 and 17

A: From the given information, Consider, X be the number of observation that has mean of 15 and…

Q: Use the properties of the mean and median to determine which are the correct mean and median for the…

A: Here we see that from above graph that, distribution is positively skewed.  Here mean is lies in…

Q: It is a level of measurement for categorical data, where numbers are assigned to non-numeric data

A: We know that there are four levels of measurement, two are used for categorical data amd two are…

Q: In one or two sentences describe your population. What did you use for your qualitative data? Is it…

A: 1. From the given information, the pie chart is given for species under three categories. In the…

Q: Below is a box plot showing the ages of actors and actresses. Ages of Oscar Winning Actors from 1975…

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Q: Why the number of days spent in hospital is a data measured at an interval and not ordinal level?

A: Levels of measurement: Ordinal: It categorizes the objects with natural ordering or ranking.…

Q: The percentile corresponding to the data value 25 is

A: Percentile is the location measure. It divide the data set into 100 equal parts with 99 points.…

Q: From the given data, calculate the mean number of accounts for the sample. A. 1.91 B. 2.19 C. 2.47…

A: Given Data : X = Number of Accounts Number of Families 0 8 1 16 2 22 3 14 4 6 5 4 6…

Q: Given that the mean of a set of data is 25 and the standard deviation is 3, what is the coefficient…

A: Given: Mean = 25 Standard deviation = 3

Q: Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found…

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Q: Based on the histogram, draw the ogive (the cumulative relative frequency polygon) for her data.

A: By using the histogram, the cumulative relative frequency is, Completion time Relative frequency…

Q: What percent of the data fall between the 1st and 2rd quartiles?   1. 0%   2. 25%   3. 50%   4.…

A:

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: I. Classify the following sets of data as qualitative or quantitative.

A: Here