Assume that you have a large set of data that ranges from a low score of 209 to a high score of 283. Then answer the following questions about that data. 15. What would be the best width of class interval for that data?

Q: A group of 100 people, who lived at varying distances (in kilometers) from an island nuclear power…

A: Given that there are 100 people. Therefore, the table becomes,    0-3 km distance 3-6 km distance…

Q: The quality control engineer at a bottling plant keeps track of the number of bottles that are…

A: Denote p as the true population proportion of overfilled or underfilled bottles.

Q: ) Danny has scored 78, 74, and 72 on the first three exams in his math class. If the standard…

A: Calculate total marks obtained in 3 exam

Q: If your grade for your AMDM class is computed the following way: Homework – 10% Quizzes – 10% Tests…

A: the given table is Homework 10% Quizzes 10% Tests 60% Final exam 20% .

Q: 2. Anxiety level and average grade of selected grade 11 students. Anxiety level 2 3 5 7 GPA 95 92 91…

A: The scatter plot can be obtained using EXCEL software. Enter the values of English in column A and…

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Calculate Fitting a straight line - Curve fitting using Least square method and find b0 and b1. X…

Q: A group of students plotted the number of hours they worked at a cake shop during the holidays and…

A: From the graph notice that, the number of hours were shown on the x  axis ( from 0 to 60) and the…

Q: A college counselor wants to determine if the number of hours spent studying for a test can be used…

A: An explanatory variable is the one which can be changed independently or what you manipulate or…

Q: Determine whether the value is from a discrete or continuous data set. Amount of fabric needed for a…

A: Discrete quantitative Variable: It is a quantitative variable. It either consists of a finite number…

Q: There are five numbers in a data set. They are 1, 2, 18, 19 and x, where x is one of the largest two…

A: The five numbers are 1,2,18, 19, and x. Here, x is the one of the largest two number of five. Median…

Q: What additional information is obtained by measuring two individuals on an interval scale compared…

A:

Q: Find the number of students from the following who scored marks not more than 45. Marks range 30-40…

A: Given Information: Marks  frequency 30-40 35 40-50 48 50-60 70 60-70 40 70-80 22…

Q: The distribution of SAT scores is normally distributed with a μ = 500 and a σ = 100.  a, What…

A: Let X be a continuous random variable of the distribution of SAT scores  is normally​ distributed…

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Step-by-step procedure to find the regression line using Excel: In Excel sheet, enter x and y in…

Q: Which measure of center is best to consider when more than 50% of your data is the same value?

A: Mean is the most frequently used measure of central tendency and generally considered the best…

Q: In a sample of n= 6 scores, five of the scores are each above the mean by one point. Where is the…

A: The mean of a data can be obtained as follows:

Q: For the data : 9 2 10 33 62 the mean is the best measure of central tendency to describe the data. O…

A: The data is 9, 2, 10, 33, 1, 62.

Q: а. Construct an FDT for the data using five class intervals b. What the table tells you, what can…

A:

Q: The mode is similar to the median as a measure of central tendency in that

A: Central tendency: The value that is used for describing the full data set using the central position…

Q: Suppose a data set is strongly skewed to the left. Which statement is true? The mean will be larger…

A: It is given that the data set is strongly skewed to the left.

Q: Create a table wherein it shows your score or your • class interval • class width • frequency •…

A: To create a table where a data is shown with the frequency, class interval and cumulative frequency.

Q: Suppose you have information about average heights of a random sample of airline passengers. The…

A:

Q: Jennifer wants to estimate the percentage of parents that use cloth diapers. She asks a randomly…

A: Solution: It is given that Jennifer wants to estimate the percentage of parents that use cloth…

Q: The value of the third quartile for a data set is 65. This means that: O 25% of the values in that…

A: Given that, The value of the third quartile for a data set is 65.

Q: A health journal conducted a study to see if packaging a healthy food product like junk food would…

A:

Q: Let us measure the degree of relationship between the sex and scores of 20 students. Let Male = 0…

A: Given information: The data represents the scores of 20 students. Among the 20 students some are…

Q: Here is a bivariate data set. y 26.3 69.6 71.6 91.9

A: Given information, x y x^2 y^2 xy 26.3 69.6 691.69 4844.16 1830.48 71.6 91.9 5126.56 8445.61…

Q: A sample of n equals 20 scores is transformed into z-scores what is the meaning for the set of 20…

A:

Q: A student at Tolland High School wondered if boys or girls at her school traveled a greater distance…

A: Solution : Given : n1 = 50 , n2 = 50

Q: During one shift, the express lane clerk recorded how many times customers violated the "10 items or…

A: Given data: From the graph, constructing frequency distribution table as: Class Interval…

Q: range o

A: Given information: The boxplots for class-A and class-B are given.

Q: The variable height that is measured into short and tall groups is considered a variable.…

A: We know that  A quantitative variable represents a measure and is numerical. while qualitative…

Q: ighly skewe

A: Effects of skewed data: Degrades the model’s ability (especially regression based models) to…

Q: A student at Tolland High School wondered if boys or girls at her school traveled a greater distance…

A: Given: Sample size for girls = 50 Sample size for boys = 50 The concern is to check the average…

Q: The estimated score will be between

A: Here given regression equation  of hours of studies and test score

Q: The mean of data set A is 42. The mean of data set B is 47. The mean absolute deviation (MAD) of…

A: The mean of data set A is 42.

Q: The mean of data set A is 42. the mean of data set B is 47. the mean absolute deviation (MAD) of…

A: given dataμA =42μB = 47∴ difference = 47-42 = 5MAD = 2.5

Q: 3. Find the percentage of data points that lie between z1 picture to support your = -3.01 and z2 =…

A: Find the percentage of data points that lies between z1=-3.01 and z2=2.61. Find the graph for it?

Q: A health journal conducted a study to see if packaging a healthy food product like junk food would…

A: Provided information: n=407, X bar=3.28 s=2.55, µ=3 The null and alternative hypothesis is, Ho: The…

Q: To guarantee that cans of soup are properly filled, some cans are sampled and the amounts measured.…

A:

Q: A relationship expert wants to know if people with higher levels of emotional intelligence (measured…

A: Solution: Given information: X: Emotional Intelligance Score  Y: First Impression Rating. Mx=…

Q: There are five numbers in a data set. They are 3, 2, 16, 19 and x, where x is one of the largest two…

A: Given that x is one of the largest two numbers of the five. That means x will lie in the 4th or 5th…

Q: A colleague of yours is faced with testing a relationship at the .05 level or significance or the…

A: Level of significance The level of significance is defined as the probability of rejecting a null…

Q: After three exams Denny has a mean score of 74 with only one exam remaining in the class what is the…

A: It is given that after three exams, Denny has a mean score of 74. To find: minimum score Denny has…

Q: 2. Select true or false for each statement about the data above. A. The most common length of ribbon…

A: For the each statement,  we need to find if it is true or false.

Q: Pat and Chris both took a spatial abilities test (mean=80, std. dev.= 8). Pat scores a 76 and Chris…

A: Given that, μ=80,σ=8,X-score of pat =76X-score of chris =94 Assume that test score X follows normal…

Q: The head of a computer science department is interested in estimating the proportion of students…

A: Solution: From the given information, confidence level is 0.95, p=0.35 and E=0.10.

Q: 4. What is the measure of x?

A: We have to find x

Q: There are five numbers in a data set. They are 3, 1, 16, 20 and x, where x is one of the largest two…

A: The value of x is one of the largest two number of the five. that is, the x value must be greater…

Q: The five-number summary for a data set Is given by mm = 5. Q1 = 18. medIan = 20. Q = 40. max = 75.…

A: Given information : Min = 5 Q1 = 18 Median = 20 Q3 = 40 Max = 75 To detect Outliers: Values lies…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.