What is the IQR for the data set?
Q: State the quartiles for the set of data. 1, 3, 3, 4, 5, 6, 6, 7, 8, 8
A: From the provided information, The data values are as follow: 1, 3, 3, 4, 5, 6, 6, 7, 8, 8
Q: what is the positive and negative impact of raw data?
A: By positive impact of raw data we mean the advantages of using raw data whereas the negatives…
Q: . Are the data consistent?
A: Given: Total no of person =500 Nonof person preferred variety A = 400 Nonof person preferred…
Q: What are the different types of data?
A:
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: Identify the type of table that is used to group bivariate data.
A: In this case, we need to identify the type of table that is used to group bivariate data.-
Q: What does a z-score tell you about a data value?
A: Solution: Let X be the random variable. The z-score is the standardized value of the given data.
Q: 3. How was the data collected?
A: Data collection is an important part because the whole analysis will depend upon the collected data.…
Q: Can you please expain why population is discrete data
A: Now population data can either be; Qualitative data Quantitative data
Q: What does an extreme value at the high end of the data set mean?
A: The numerical data can be divided into two parts. One being discrete and other continuous. As the…
Q: The median for the dataset used to create this histogram could possibly be in which range?
A: Frequency Distribution table : Class Frequency Cumulative Frequency 2-4 1 1 4-6 4 1+4=5 6-8…
Q: What is the drawback of summarizing the data using the median
A: Median: Median is the middle value of the set of numbers. The set of numbers should be arranged in…
Q: How to interpret the result according to the above data?
A: Decision Rule: Reject H0 if p value less than or equal to α. Let us consider, α=0.05. From the given…
Q: Explain the Formulas for a sample comparable to the ones for a population?
A: If the data includes all the possible values, then it is called population. Whereas, the sample data…
Q: find mean devaition of this data??
A: Calculate Mean deviation from the following grouped data Class Frequency (f) 110 - 119 1 120…
Q: What is the mean of the current data set? Show your work using the sketchpad below.
A: Measure of central tendency measures the central or average value of a dataset. Measured of…
Q: What is the mode of the data shown below?
A: Given : We have given data of stem and leaf stem Leaf 1 1,2 2 2,3,8 3 3,4,5 4 0,0,1…
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: What does a standard score measure?
A: Solution A standard score is the score which is standardized with respect to mean and sd.
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: Analyze the experimental data
A: ANOVA: This is a statistical technique to observe the variation in the data. here three brands of…
Q: Pick any 10 two-digit number of your choice and calculate the mean, variance, IQR, and range of any…
A: Let the sample be 28, 21, 22, 28, 34, 26, 57, 48, 35, 31 Sample arranged in ascending order: 21,…
Q: The first quartile of the data values 45, 48, 31, 48, 50, 30 equals ?
A: Arranging the data into ascending order: 30, 31, 45, 48, 48, 50
Q: find mode of dataset 4, 14, 12, 4, 15, 15, 6, 8, 10,12,12 *
A:
Q: What is the difference between grouped data and ungrouped data? In which situation should grouped…
A: Ungrouped data is the raw data given as individual data points. Grouped data is the data given in…
Q: Calculate the test statistic,
A: Given that sample size is n = 76 And number of peoples who said they are confident of meeting their…
Q: Explain how you will ensure that data samples are of adequate size and are population when you…
A: It is asked to explain how you will ensure that data samples are of adequate size and are…
Q: What is the average IQ of these subjects?
A:
Q: I need help finding unusual values from a data set.
A: Here we find that unusual values from a data set.
Q: What is the shape of this data analysis?
A: Given data:
Q: What is the 75th Percentile of a data set when the Inter Quartile Range (IQR) is 12.5 and the first…
A:
Q: ) what is the first quartile? B) % of the data between 30 and 36
A: See the handwritten solution
Q: Hair colors are an example of which type of data?
A: Introduction: There are broadly 4 scales of measurement used in Statistics, that either categorize…
Q: What are the three types of data?
A:
Q: What is the largest value in the dataset? What the is median of the data displayed? What is the mode…
A: From stem and leaf plot, the largest value in the dataset is 7.5.
Q: What type of data would you use for collecting data on lap swim time
A: Continuous Data represents measurements and therefore their values can’t be counted but they can be…
Q: Comment on one aspect of the comparison of data from the two datasets that can be seen more easily…
A: The sample of size 20 new balls and 20 current balls are taken in order to check that if there is a…
Q: What is primary data?
A: In this case, we need to define the primary data.
Q: Data literacy
A: Meaning of Data Literacy: Data literacy is the ability to read, work with, analyze and communicate…
Q: Select whether the value of each statistic for the distances of the stars from Earth increases,…
A: Given the data 63, 68, 78, 88, 90, 105, 120. To find the value of mean, median and standard…
Q: consider a data set with at least three data values. Suppose the highest value is increased by 10…
A: Given consider a data set with at least three data values. Suppose the highest value is increased by…
Q: What is the definition of mode of a data set?
A: The mode of the data set is........
Q: What is the IQR (Q3 – Q1) of the following data set: 38, 34, 21, 28, 70, 38, 66
A: We find the IQR (Q3 – Q1) of the following data set: 38, 34, 21, 28, 70, 38, 66
Q: Compose the score values for 3 samples that have the same mean and median, but differ in the amount…
A: Part 1 2, 4, 6 3, 4, 5 4, 4, 4 Explanation: Part 1 There are many different conceivable…
Q: Statistical Techiques that summarize and organize data are classified as ?
A: Given problem Given that Statistical Techniques that summarize and organize data are classified…
Q: The median of a sample with data values of 8,19,12,17,16 is?
A:
Q: The five number summary of a dataset was found to be: 0, 3, 8, 15, 20
A: An outlier in a distribution is a number that is more than 1.5 times the length of the box away from…
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,…
What is the IQR for the data set?
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- A cell phone company offers 6 different voice packages and 8 different data packages. Of those, 3 packages include both voice and data. How many ways are there to choose either voice or data, but not both?Imagine a database from the Gallogly College of Engineering that contained the starting salariesfor a sample of Spring 2021 graduating engineers. Recreate the following table. At theintersections of the table, fill out what happens to the sample statistic (in the row) when everysalary is altered by the specified amount (in the column). You’re welcome to use actual data totest your intuition, but data aren’t necessary – the answers in the intersections should begeneric.The manufacturer of an MP3 player wanted to know whether a 10% reduction in price is enough to increase the sales of its product. To investigate, the owner randomly selected 8 outlets and sold the MP3 player at the reduced price. At 7 randomly selected outlets, the MP3 player was sold at the regular price. Reported below is the number of units sold last month at the regular and reduced prices at the randomly selected outlets. Regular (7 outlets) - 138, 127, 129, 114, 114, 126, 98 Reduced (8 outlets) - 122, 135, 151, 133, 113, 129, 134, 133 At the 0.050 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales? Hint: for the calculations, assume the reduced price as the first sample. Compute the pooled estimate of the variance (round to 3 decimal places) Compute the test statistic (round to 2 decimal places)
- A 7th grade science teacher would like to know if spending more time doing class experiments will help his students perform better on tests. In a day, he teaches 4 periods of science, so for his 1st and 3th period classes, he taught as he normally does with mostly lectures and occasional class experiments. For his 2nd and 4th period classes, he did a class experiment every day with minimal lectures. There were n = 25 different students in each of his classes. He then wanted to compare the exam averages between his classes to see if student performance was significantly different. Which of the following statistical tests should he use? z-Test one-sample t-Test independent sample t-test dependent sample t-testA 7th grade science teacher would like to know if spending more time doing class experiments will help his students perform better on tests. In a day, he teaches 4 periods of science, so for his 1st and 3th period classes, he taught as he normally does with mostly lectures and occasional class experiments. For his 2nd and 4th period classes, he did a class experiment every day with minimal lectures. There were n = 25 different students in each of his classes. He then wanted to compare the exam averages between his classes to see if student performance was significantly different. Which of the following statistical tests should he use? z-Test independent sample t-test dependent sample t-test17- How do you find Median for even number of observations under ungrouped method? a. Arrange the data in ascending order and multiply middle two numbers b. Arrange the data in ascending order and find the difference of middle two numbers c. Arrange the data in ascending order and add middle two numbers d. Arrange the data in ascending order and take the average of middle two numbers
- A personnel office is gathering data regarding working conditions. Employees are given a list of five conditions that they might want to see improved. They are asked to select the one item that is most critical to them. Which type of graph, circle graph or Pareto chart, would be the most useful for displaying the results of the survey? Why? Pareto chart, because it shows the items in order of importance to employees. Circle chart, because it shows the items in order of importance to employees. Circle chart, because it shows the total number of important issues to employees. Pareto chart, because it shows the total number of important issues to employees.A 7th grade science teacher would like to know if spending more time doing class experiments will help his students preform better on tests. In a day, he teaches 4 periods of science, so for his 1st and 3rd period classes, he taught as he normally does with mostly lectures and occassional class experiments. For his 2nd and 4th period classes, he did a class experiment everyday with minimal lectures. There were n=25 different students in each of his classes. He then wanted to compare the exam averages between his classes to see if student preformance was significantly different. Which statistical tests should he use?A psychology instructor at a large university teaches statistics. There are 22 students in the class, and he has broken them into two groups. Each group has a different graduate assistant who is responsible for running separate breakout lecture and lab sections of the course. One graduate assistant (GA) has lots of experience teaching, while the other has more limited experience. The instructor wants to check for comparable learning across the two GAs, hoping students receive similar experiences (i.e., to find no difference). The data below are the scores (out of 100) of the students on the first midterm. Use it to test whether there is a difference between the groups. Group 1 (less experienced GA) Group 2 (more experienced GA) 60 70 65 85 69 72 58 83 57 81 59 69 52 65 72 75 70 79 65 71 75 80 Q: List the steps to obtaining all relevant statistical output in SPSS. List the steps to…
- A psychologist at the Hospital was asked to determine whether there was any clear difference in the length of stay (in days) of patients with different categories of diagnosis. The hospital was looking for ways to reduce costs and free up some more beds so that they could treat more patients from the community. They chose three diagnostic categories that they thought were possibly staying the longest and selected the 4 more recent admissions from each of these diagnostic categories: affective disorders, cognitive disorders, and drug-related disorders. The results are presented in Table 3 below. Using an alpha = .05 and showing all the steps of hypothesis testing, is there a significant difference in length of stay among diagnosistic categories?The file MidCity Download MidCitycontains data on 128 recent sales in Mid City. For each sale, the file shows the neighborhood (1, 2, or 3) in which the house is located, the number of offers made on the house, the square footage, whether the house is made primarily of brick, the number of bathrooms, the number of bedrooms, and the selling price. Neighborhoods 1 and 2 are more traditional neighborhoods, whereas neighborhood 3 is a newer, more prestigious neighborhood. Home Nbhd Offers Sq Ft Brick Bedrooms Bathrooms Price 1 2 2 1790 No 2 2 228600 2 2 3 2030 No 4 2 228400 3 2 1 1740 No 3 2 229600 4 2 3 1980 No 3 2 189400 5 2 3 2130 No 3 3 239600 6 1 2 1780 No 3 2 229200 7 3 3 1830 Yes 3 3 303200 8 3 2 2160 No 4 2 301400 9 2 3 2110 No 4 2 238400 10 2 3 1730 No 3 3 208000 11 2 3 2030 Yes 3 2 265000 12 2 2 1870 Yes 2 2 246000 13 1 4 1910 No 3 2 205200 14 1 5 2150 Yes 3 3 252600 15 3 4 2590 No 4 3 353600 16 3 1 1780 No 4 2 291600 17 2 4 2190 Yes 3 3…A consumer researcher gave consumers a sample shampoo. After using the shampoo, each consumer used an interval-level scale to rate his or her satisfaction with it. Scores could range from 0 to 100, with higher scores indicating greater satisfaction. Consumers didn’t know each other and were randomly assigned to three groups: (1) receive a store brand of shampoo in a bottle clearly labeled as such, (2) receive a premium brand of shampoo in the premium brand’s bottle, or (3) receive a store brand of shampoo in the premium brand’s bottle. Here are the collected data: Store brand, store bottle Premium brand, premium bottle Store brand, premium bottle 70 85 85 65 90 80 65 95 90 60 90 85 M = 65s = 4.08 M = 90s = 4.08 M = 85s = 4.08 SSbetween = 1400 c. What is the decision rule?d. Calculate the test
