The following table gives information on the amount (in dollars) Of the electric bills for a samle of 40 families Electric bill Number of families 2 | 8-12 11 | 12-16 14 16-20 | 20-24 5 4-8 c)Estimate the sample mean minutes late.

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A:

Q: 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

A: 1 2 3 4 5 6 7 8 9 10 11 12 11 11 11 11 11 11 11 11 21 22 23 24 25 26 27 28 29 30 31 32 33 34…

Q: A simple random sample of 8 employees of a corporation provided the following information. Employee…

A: A simple random sample of 8 employees of a corporation provided the given Information. The objective…

Q: 4 The data below shows the ages of a random sample of people visiti museum. 20 23 25 30 32 35 39 44…

A: Stem and leaf is a graphical presentation of the data, where each observation is divided into the…

Q: b. Draw all possible samples of size 3 without replacement from the population (R+1). (R+2). (R+3),…

A: Taking  R= 92

Q: FILE The Thomas Supply Company Inc. is a distributor of gas-powered generators. As with any…

A: Given : Sample No Sample 1 13 2 13 3 13 4 20 5 26 6 27 7 31 8 34 9 34 10 34…

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: Solution: Given information: Let x=Actress (years)  and y=Actor (years) x y d=x-y (d-d) (d-d)2…

Q: The following table gives information on the amount (in dollars) Of the electric bills for a samle…

A: Sample Median: Generally, Median is exactly the middle of the data when the data is in ascending…

Q: An instructor wants to find out whether the mean score received by students who were helped by three…

A: Given: leshia Chandra Sumaiya Indranil 72 78 80 79 69 93 68 70 84 79 59 61 76 97 75 74…

Q: a. Compute the mean of the following sample values: 1.3, 7.0, 3.6, 4.1, 5.0. b. Show that D(x – X) =…

A: 4. a. The given sample values are:1.3, 7.0, 3.6, 4.1, 5.0. The sample size is, n=5. Need to…

Q: The data below indicates the number of pairs of footwear owned by a random sample of MVCC students.…

A: Given data is3,6,13,10,13,7,4,14,10,12,10,45,2,20,63,27,4,15,10,24,8,8,19,12,40,46,10,6,6,7,45,8

Q: A random sample of the number of educational projects in each of the regions of the country are as…

A: The following information has been given : 47,95,54,33,64,4,8,57,9,80,8,90,3,49,4,44 The sample size…

Q: Here is a sample data set. 348.5 354 361 365.5 380 413.2 417.4 439.1 445 468.8 472.7 473.9 477.3…

A: arrange the data in ascending order ascending order is: [348.5, 354.0, 361.0, 365.5, 380.0,…

Q: Given below are the last four digits of 18 random phone numbers of your local population. 2,616…

A: The sample mean (x¯)=∑ixin where n=number of observations            xi =ith element of the sample…

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: (a) State the hypotheses. That is, there is no evidence to conclude that difference between the…

Q: :The following table shows the number of credit hours registered for 20 students in a class randomly…

A: A) Given : Class Frequency 4 - 6 4 7 - 9 7 10 - 12 8 13 - 15 1

Q: o=9. What is the sample size used in this inference? F

A: here confidence level  = 0.95   because p(19.9 < population mean < 20.1 ) = 0.95

Q: The following data lists the ages of a random selection of actresses when they won an av that the…

A: Hey there! Thank you for posting the question.Since you have posted a question with multiple…

Q: Here is a set of sample data 3 6 7 13 17 21 23 24 30 34 36 39 40 73 83 86 91 95 99   Identify the…

A: Given data set, 3 6 7 13 17 21 23 24 30 34 36 39 40 73 83 86 91 95 99     First sort the…

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: Let d denote the actress's age minus the actors age Let μd denote the mean value of the difference d…

Q: Here is a set of sample data. 19 67 84 73 2 11 55 23 13 51 56 33 12 30 90 79 82 10 80 100 81 61…

A: Using R

Q: a. Compute the mean of the following sample values: 5, 9, 4, 10. b. Show that E(x - X) = 0, %3D 3.

A:

Q: Here is a set of sample data 12 17 20 22 24 33 39 42 43 44 53 58 69 77 78 Identify the…

A: Given Five number summary : 12,17,20,22,24,33,39,42,43,44,53,58,69,77,78  Steps of Five-Number…

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: Degrees of freedom = n-1 =9

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: (a) The null hypothesis is a simple statement about the value of the population parameter which is…

Q: To study the popularity of a restaurant, an employee is asked to count the number of customers…

A: Mean = Σx/n  Here sample size is n= 6 Mean = (20+25+18+19+31+42)/6 =155/6 =25.833

Q: 2) Given the table below, find the sample units per strata for a sample of 325 students Courses Year…

A: Given:   Courses Year Level Number of students Male Female Biology First 20 46   Second 15…

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: Given are 4 observations for the annual salaries (in 1000s) for a group of marketing majors. Ahnual…

A:

Q: Here is a sample data set. 179.8 208.4 362.6| 380.3 396.4 228.7 234.2 269.1 289.8 403.3 403.3 436.5…

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

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: Actress(A) Actor(B) d   29 59 -30   26 36 -10   34 36 -2   28 37 -9   39 36 3   24 36…

Q: To calculate expected frequency for each class in the goodness of fit test, we divide the number of…

A: Given problem Given that   To calculate expected frequency for each class in the goodness of fit…

Q: A. The following are the heights of four students in centimeters. Suppose samples of size 2 are…

A: Given: Students Heights (in cm) Cardo 125 Alyana 120 Joaquin 130 Flora 110

Q: The table below gives the two-way classification of 400 randomly selected persons based on their…

A: We have given that data  I want to find test statistic  Chi square.

Q: Consider all samples of size 2 from this population. 9 8 10 12 14 15 1. Lists all samples and…

A:

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: The appropriate Null and Alternative Hypotheses are given below:   Null hypothesis:   H0: µd=0.…

Q: The numbers of clients, during a special event, of several tourist agencies in Luzon are 10 11 10 2…

A: Given data set is 9, 7, 10, 11, 10, 2, 3, 11, 5, 4, 8, 10, 9, 12, 5, 11, 8, 3, 6, 9, 7, 4, 9, 8, 4…

Q: The table below gives the two-way classification of 400 randomly selected persons based on their…

A:

Q: Based on data from WHO, a representative sample of 11-year-old females could consist of the…

A: Arranging the data in Ascending order: 13.7, 14.7, 15.3, 15.8, 16.1, 16.5, 16.8, 17.2, 17.7, 18.1,…

Q: A sample of 30 plants heights in a nursery is given in below table: 3.65 3.78 3.60 3.70 3.85…

A: Given:

Q: 1. The following set of data lists the number of text messages sent per day in a sample of college…

A: In statistics there are two types of measures namely measures of central tendency and…

Q: Table below summaries the age group of the 300 respondents. Table 1 Age Group Number of Respondents…

A:

Q: I want to find out the average number of people per household in the U.S. I survey a simple random…

A: Given, Household size, (x) Number of households, f(x) 1 27 2 34 3 16 4 13 5 6 6 3 7…

Q: Section of an oil field has been divided into 48 equal sub-areas. Counting the oil wells in the 48…

A: Given:Frequency distribution is given.Here we check that the the data is randomly distributed or…

Q: A marble is drawn from a bag containing three red, four blue, and three green marbles. What is n(S),…

A:

Q: JS Travel Agency, a nation wide local travel agency, offers special rates on summer period. The…

A: For the given data, let us construct a frequency distribution table. Number of classes=6Class…

Q: The number of winter vacation days during one year taken by 159 randomly selected employees were…

A: The given summarized frequency table is,

Q: Here is a set of sample data 7 17 22 26 34 37 39 40 50 53 61 66 69 72 74 78 81 99 100   Identify…

A: Use EXCEL Procedure to obtain the value of first quartile.   Follow the instruction to obtain the…

Q: The following table shows the systolic blood pressure of 5 certified public accountants before tax…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: From the population of the 300 student scores above a random sample of size n = 8 is selected. The…

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

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.