33) The owner of a manufacturing plant employs eighty people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The distances for a random sample of six employees are listed below: 26 32 29 16 45 19 Find the variance for the given data. A) 107.0 mi2 B) 18.9 mi2 C) 15.8 mi2 D) 5043.6 mi2

Q: An agronomist measured the height of 115 Canola plants. The mean height was 242 cm and the standard…

A: The mean is 242 cm and the standard deviation is 14 cm.

Q: Chinstrap penguins have the following flipper length measurements in mm: 181 181 186 190 193 195 195…

A: Variance measures the dispersion of a set of data points around their mean value. It is calculated…

Q: A group of researchers wants to estimate the true mean skidding distance along a new road in a…

A: Data490352453196290405570435550384300430180264275402310314143426

Q: Q. Draw a conclusion from the histogram

A: Given :

Q: 2. Define the moving average w, is the standard normal white noise, 500 EWitili?, t = 1,..., 1, 000.…

A: A stationary time series wt is known as a white noise if the correlation between wt and ws is 0; for…

Q: Determine the median of the given data set. Height 148 153 167 138 170 153 165 175 (cm)

A: Median:   It represents the middle value for any given data set.   There are two cases arises.…

Q: Which interval contains the greatest amount of data? A. O 0-50 B.O 50-100 C.75-125 D.O 125-175 E. O…

A: Answer:- Given boxplot is  From the boxplot,  Minimum= 25 First quartile Q1 = 50 Second quartile ,…

Q: A botanist grew 24 pepper plants on the same greenhouse bench. After 21 days, she measured the total…

A: Given data 9.8, 10.1, 10.9, 11.3, 11.8, 11.9, 12.0, 12.0, 12.1, 12.2, 12.2, 12.3, 12.5, 12.6, 12.7,…

Q: Fourteen different second-year medical students at a hospital measured the blood pressure of the…

A: Construct a boxplot: Given data represents the systolic reading (mm Hg) of the person measured by…

Q: WEIGHTS IN KG OF 10 PREGNANT LADIES, WERE RECORDED IN ANTENATAL CLINIC. THE MEAN WEIGHT WAS 78KG AND…

A: Given: s2=45 Then, the standard deviation iss=s2=45=6.7

Q: Consider these sample​ data: x1=12​, x2=6​, x3=4​, x4=14.   a. Find n.      b.Compute ∑xi.…

A:

Q: The average distance Melissa can hit a golf ball is 115 meters. After spending time with a…

A: a)   Denote μ as the true mean distance Person M can hit a gold ball.

Q: 14 different second-year medical students at Bellevue Hospital measured the blood pressure of the…

A:

Q: :Find the population variance for the following data set 24 19 32 15 28

A: Given: The following data is given x: 24 19 32 15 28

Q: Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the…

A:

Q: Answers only. Thank you 1. What is the lowest level of measurement required to determine the…

A:

Q: Consider these sample​ data: x1=12​, x2=6​, x3=4​, x4=14.   Find n.      Compute ∑xi. Determine x.

A:

Q: 1. For the data set: x1: 15 16 17 18 19 20 x2:2 5 10 25 6 2 a) find the mean, median, mode, and…

A:

Q: Which choice best describes the estimate of E(yla = 0)? (a) E(y|x = 0) < -2 (b) -2 ≤ E(y|x = 0) < 0…

A: The data on the X and Y variables are as follows:X:−4,−2,0,2,4Y:−10.672,−6.428,−2.242,1.946,7.596To…

Q: A person is interested in assessing the relationship between the average number of cigarettes smoked…

A: Use the Excel and Perform the Regression. Followings are the Steps to perform the Regression 1) Open…

Q: Make a stem and leaf plot of the data.  B) how many of the measurements are greater than 40? C)…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Q2. Find a)Mean, b) Coefficient of variation for the following data set considering the…

A: The objective is to find the mean and the coefficient of variation for the following dataset.…

Q: Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They…

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

Q: a. Find the three quartiles. Q1 = Q2 = Q3 = (Type integers or decimals. Do not round.) b. Choose the…

A: a. The first quartile can be obtained using the excel formula “=QUARTILE.EXC(A1:A23,1)”. The first…

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: d. Draw the dot plot for the sample means obtained in part (b) and makes comment.

A:

Q: 4. Given the two sample data sets A and B: A: 1 4 7 18 B: 6 7 7. a. Compute the mean of each…

A:

Q: Q5) Consider the data: 480 855 1010 890 735 510 765 985 635 410 485 a) Calculate the mean,…

A: From the given information, The data can be shown in the table: x 480 855 1010 890 735…

Q: I. The data related to the number of cars sold in different dealers in the United States in a week…

A: 10)   Box plot for the given observations:   Steps to construct box plot in Excel:   Select the…

Q: Variable List (a) Using the variables listed in the table above, Describe each variable. (b) State…

A: Ordinal variables are the categorical variables that can only be ranked. For example, you cannot put…

Q: The following data is for the lengths of tongues of a sample of lizards, measured in centimeters…

A: Let, X: The lengths of tongues of lizards measured in centimeters. X: 3.0, 3.59, 3.6,…

Q: Given the following data. Find the variance: 2,4, 3,5 اختر احدى الدجابات O None 1.25 O 54 1.666

A: Measures of Dispersion: The word dispersion is used to denote the degree of heterogeneity in the…

Q: A forest ranger has data on the heights of a large growthof young pine trees. The mean height is 3.2…

A: Denote the random variable X as height of trees. Here X follows normal distribution with µ= 3.2, σ=…

Q: The coefficient of variation of the height of 20 people selected at random from a given city is…

A: Given: Coefficient of variation of height = 15% Mean of weight = 72 kg Standard deviation of weight…

Q: A group of researchers wants to estimate the true mean skidding distance along a new road in a…

A: The true mean is denoted by .The sample size is .Sample data values are 488, 300, 350, 433, 456,…

Q: The followmg distrioukion has a mean of 5,7 a. Find the value of x. 2. 5. X46 score: froquency: 2.…

A: From the provided information, Score 2 5 x x+6 Frequency 3 2 4 1

Q: Consider a sample data set with the summary statistics s= 112, Q = 58, and Qu = 203. %3D a.…

A: It is given that QU=203 and QL=58.

Q: II. Consider the following set of data. 49 Determine the value of 1. Mean 2. Median 3. Mode 4. Range…

A: Given data values are49, 59, 48, 56, 36, 76, 87, 45Number of observations (n) = 8

Q: Find the mode(s) for the given sample data of the height (in meters) of trees in a park. 7.29, 7.41,…

A: Solution

Q: 38 41 50 36 36 43 42 49 48 40 37 41 43 50 45 45 39 38 41 47 36 35 40 42 43 29 33 re are 4 stems in…

A: Stem-and-leaf plot is a plot where each data value is split into a "leaf" (usually the last digit)…

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.