Of the electric bills for a samle of 40 families Electric bill Number of families 2 12-16 14 4-8 8-12 11 16-20 20-24 f)Estimate the sample variance.

Q: Q4) The age of all the patients in isolation ward of a hospital are (33, 15, 38, 26, 13, 41, 22, 19)…

A:

Q: 468.5 512.2 374.9 702.8 474.1 426.9 427.6 423.3 448.3 474.1 720.2 676.5 421.1 480.9 462.3 464.2…

A:

Q: 团 D avernge By using $ wOR sample, estimate the number of carS per village in the block aloug with…

A:

Q: Find the variance of the given population: -8, 9, 10, -10, 7, 6, 4, 3 O 7.07 O 7.56 O 57.13 O 49.98

A: Given : -8,9,10,-10,7,6,4,3

Q: Consider the data set 7, 9, 14, 15, 22. What is the standard error of the sample mean?

A:

Q: Suppose we want to determine the opinion of Business Administration students regarding pre- marital…

A: Given that in a population of size 500, there are 300 females and 200 males.

Q: 3. What is the median of the data set (30, 10, 20, 40}? OA. 10 OB. 15 OC. 20 OD. 25

A: given  set is  30,10,20,40median is the number in the middle when the data is ordered from leastto…

Q: A government organization is examining the effectiveness of a program intended to shorten security…

A: For a set of n observations X1, X2,...., Xn,  Mean=1n∑i=1nXiStandard deviation=1n∑i=1nXi-X2The 99%…

Q: for the scores from a sample 2,9,6,5,7,5,5,6,2,4,3,9,4,8,3,2,5,4,9,9 construct a frequancy…

A: We want to make frequency distribution table

Q: There are four brothers in a family.  Their ages are 7 years,10 years,15 years, and 21 years.…

A: From the provided information, Sample size (n) = 4 The data values are as follow: 7, 10, 15, 21

Q: There are six sisters and a family. Their ages are 7 years, 10 years, 15 years, 15 years, 20 years,…

A: Assume that the random variable x defines the ages of the sisters in the family.

Q: There are 500 staffs in a company. The hours used in leisure per week by 5 of the employees are 5,…

A: given data  population size N = 500 sample size n = 5 sample observations are : 5,2,8,10,7 find…

Q: class contains 8 students. Find the number of ordered sample of size 3 with replacemen

A: Since , the class contains 8 students. Our aim is to find the number of ordered sample of size 3…

Q: If the deviations six of values from their mean are 0, -6, 7,-2,5,-4 then the sample variance equal…

A:

Q: There are eight patients waiting in a doctor's waiting room. They have been waiting for 9 minutes,…

A: Given: Given data in minutes is: 2, 4, 5, 7, 8, 9, 11, 12

Q: A six-sided die is rolled twice and the mean of the two results is solved. Construct the sampling…

A:

Q: A population consists of the five measurements 2, 6, 8, 0, and 1. How many different samples of size…

A: Sample space is all possible outcomes in a random experiment. Sample space is denoted by S. Here we…

Q: Here is a set of sample data 15 25 28 45 47 49 56 68 69 72 86 Identify the 5 number summary (min,…

A: Quartiles: The observations Q1, Q2, And Q3 which divide the total number of observations into 4…

Q: A. Create a Box-and-Whisker Plot B. What is the sample mean of the data C. What is the sample…

A: The data given for production of cannons for 30 days is as follows…

Q: For a sample of n=16 scores, how many scores are used to calculate the sample variance?

A:

Q: For a sample of n=15 scores, how many scores are used to calculate the sample variance ?

A: Given that : For a sample of n=15 scores, how many scores are used to calculate the sample variance…

Q: Given the data 6, 9, 12, 15, 16, 19, 22. Construct a sampling distribution of the sample mean…

A: Given Sample size, n=3 (without replacement)

Q: The age of all the patients in isolation ward of a hospital are (33, 15, 38, 26, 13, 41, 22, 19)…

A:

Q: (g) Suppose a new movie (based on an epic novel) has just been released. Production costs were x2 =…

A:

Q: Assume you did an experiment with 3 groups and 16 subjects per group. The sample variances in the…

A: Given Information Number of Groups = 3 Total subjects = 16 x 3 = 48 s1 = 14 s2 = 16 s3 = 18…

Q: Suppose we want to determine the opinion of Business Administration students regarding pre- marital…

A:

Q: Solve using variation of parameters: y" - 2y + y = et/(1+12) + 3et Yp= U₁ et + u2 tet (Use 2 decimal…

A:

Q: data set contains the observations 3, 8, 4, 5, 3, 4, 6. A. Find the sample mean. B. Find the…

A: We have given that data. 3, 8, 4, 5, 3, 4, 6. I want to find mean and sample variance  Mean = sum of…

Q: There are eight patients waiting in a doctor's waiting room.  They have been waiting for 9 minutes,…

A: We have given following data x : 9,2,5,4,12,7,8,11 We have to calculate the sample variance for the…

Q: Explain the differences between a sample and a population.

A: Population is the complete group of objects or individuals for which the study is being conducted…

Q: Part asked to find the sample correlation coefficient

A: Correlation: By correlation we mean the association or interdependence between two variables. If two…

Q: Ten students took their practical exam in Science. Out of 50 items ,they obtained the following…

A: Given : scores(x):  44, 49, 42 , 25 , 29 , 21 , 39 , 40, 47 , 45

Q: In Problems 9-12, conduct each test at the a = 0.05 level of significance by determining (a) the…

A: Given that  Sample sizes n1=874 , n2=954 Favorable cases x1=804 , x2=902

Q: Find the mode of the given sample: 12, -2, -2, 12, 12, -2, 22, -22, 22, -22,12 -22 12 -2 22

A: Given sample= 12,-2,-2,12,12,-2,22,-22,22,-22,12 Mode=A value appears most frequently in the given…

Q: (a) Fill in the sample means in the table. Do not round your answers. Sample Pencil weight (in…

A: GivenThree students want to estimate the mean pencil weight of their schoolmates.

Q: The sample size of the data 10,10, 10, 10, 10  is

A: The data set is 10, 10,10,10,10.

Q: One way analysis of variance is used to test for O A. equality of three or more population means O…

A: One way analysis of variance is used for ..........................