consider the following numbers: -5,-3,-1,1,3. assuming that these numbers are the sample data, use a pencil...

consider the following numbers: -5,-3,-1,1,3. assuming that these numbers are the sample data, use a pencil and calculator to calculate the mean, standard deviation and variance. please show work

Expert Solution

milcah answered 1 year ago

Consider the following randomly arranged in 3 classes data of a sample. Classes frequency 5-9 9...

Consider the following randomly arranged in 3 classes data of a sample. Classes frequency 5-9 9 10-14 25 15-19 8 Plot the cumulative histogram and the polygon and interpret. (2.5+2.5+2.5=7.5) Determine the Range (5) Determine the mean and the median. (7.5+7.5=15) Determine the standard deviation. (7.5) Determine the relative frequency and determine the percentage of observation having a value equal or lower than 12. (5+2.5)

Consider the following set of numbers: {3, 5, 2, 5, 5, 15, 2, 2, 4, 4,...

Consider the following set of numbers: {3, 5, 2, 5, 5, 15, 2, 2, 4, 4, 20, 4998, 4} 14. The Q3 of this set is: a. 4 b. 5 c. 2 d. 10 15. The Q1 of this set is: a. 4 b. 5 c. 2 d. 2.5 e. 3

Consider the following two sample data sets. Set 1: 5 3 2 8 6 Set 2:...

Consider the following two sample data sets. Set 1: 5 3 2 8 6 Set 2: 3 12 13 2 7 a. Calculate the coefficient of variation for each data set. b. Which data set has more variability? a. The coefficient of variation for set 1 is nothing %. (Round to one decimal place as needed.)

Consider the following data: X Y 1 13 3 10 5 9 5 5 6 3...

Consider the following data: X Y 1 13 3 10 5 9 5 5 6 3 Draw a Scatter Plot of the data. Do you believe the correlation coefficient r will be positive, negative or close to zero? Why What is your estimate to the value of Y associated with X=4?

Consider the following data collected from four independent populations: Sample 1 Sample 2 Sample 3 Sample...

Consider the following data collected from four independent populations: Sample 1 Sample 2 Sample 3 Sample 4 3 14 21 8 8 9 15 3 6 13 16 13 5 14 a. Calculate the total sum of squares (SST). b. Partition the total sum of squares (SST) into its two components. c. Using a= 0.001, what conclusions can be made about the population means?

3. Consider the following sample data and hypotheses. Assume that the populations are normally distributed with...

3. Consider the following sample data and hypotheses. Assume that the populations are normally distributed with unequal variances. Sample Mean1 = 262 Sample Variance1 = 23 n1 = 10 Sample Mean2 = 249 Sample Variance2 = 35 n2 = 10 a. Construct the 90% Confidence Interval for the difference of the two means. H0: μ1 – μ2 ≤ 0 HA: μ1 – μ2 > 0 b. Using the hypotheses listed above, conduct the following hypothesis test steps. Following the “Roadmap for...

Trace the execution of the following program assuming the input stream contains the numbers 10, 3,...

Trace the execution of the following program assuming the input stream contains the numbers 10, 3, and 14.3. Use a table that shows the value of each variable at each step. Also show the output (exactly as it would be printed) // FILE: Trace.java // PURPOSE: An exercise in tracing a program and understanding // assignment statements and expressions. import java.util.Scanner; public class Trace { public static void main (String[] args) { int one, two, three; double what; Scanner scan...

Consider the following data set: 3 -5 5 7 9 10 -3 35 2 1 1...

Consider the following data set: 3 -5 5 7 9 10 -3 35 2 1 1 a) Determine by hand (you can use the calculator) the mean, median and mode of this data set. show enough details in your work for it to be clear that you did this work. b) Use MINITAB to obtain the above results for this data set (and only these results). c) By hand clearly determine the 5 number summary for this data set and...

Consider the following data table: x 8 5 4 6 2 5 3 y 1 3...

Consider the following data table: x 8 5 4 6 2 5 3 y 1 3 6 3 7 2 5 (15 points) Create a scatterplot of the data either by hand or with a computer. Does there appear to be a linear relationship between x and y? If so, what is the strength and direction of the relationship? (20 points) Give the Simple Linear Regression Model, using x as the predictor variable and y as the response variable. What is the meaning...

Consider the set of integers A = {1, 2, 3, 4, 5}. Pairs of numbers are...

Consider the set of integers A = {1, 2, 3, 4, 5}. Pairs of numbers are constructed where each number of the pair comes from set A. Construct the sampling distribution of sample ranges. Apply the Empirical Rule to this distribution.

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