A survey study conducted in a city revealed that 25% of the population do sports. 8 people are chosen randomly. Find the variance of people known to play sports. A) 6.5 B) 3,5 C) 4,5 D) 1,5 E) 2,5

Q: A sports researcher is interested in determining if there is a relationship between the number of…

A:

Q: The table shows a random sample of musicians and how they learned to play their instruments. Gender…

A: P(musician is a female AND had private instructor)

Q: The following table lists the frequency distribution for a sample of students majors in DU. Find the…

A: Formula : Expected frequency = np

Q: Suppose a distribution has =10, Q, = 20, and e = 30. Then, the value of coefficient %3I of skewness…

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: A restaurant believes that meal choices of its customers are uniformly distributed over the five…

A:

Q: A study is conducted to estimate the average difference in bus ridership for a large city during the…

A:

Q: A multiple-choice quiz has 15 questions, each with four possible answer of which only 1 is the…

A: Given information- We have given that a multiple-choice quiz has 15 questions. Each question has 4…

Q: The following table shows the data of a random sample of fish collected from and later released into…

A:

Q: 9 - A survey conducted in a city revealed that 25% of the people do sports. 8 people are randomly…

A: We have given that  Sample size n=8 , p=25%=0.25  and  q=1-p=1-0.25=.75

Q: In a population where 6% of  the voters prefer Candidate A, how many voters must be sampled for the…

A: Given information: PCandidate A=6100=0.06

Q: consulting firm that surveyed consumers' holiday shopping behavior found that the percentage of…

A: Solution

Q: In a survey of 460 drivers from the South, 409 wear a seat belt. In a survey of 340 drivers from the…

A:

Q: Is a statistics class' delivery type a factor in how well students do on the final exam? the average…

A: Null and alternative hypothesis: Ho:  µ1 = µ2 = µ3  (All means are equal) Ha :  At least two of the…

Q: 80% of people who purchase SUV sports model vehicles are men. What is the variance of women who…

A: Given: n=15 Here women purchasing SUV sports model vehicle is success. Probability of men purchasing…

Q: 30% of the Palestinian students choose the scientific stream in Tawjihi. We have selected 50…

A: Given30% of the palestinianstudents choose thescientific stream thenp=0.30No.of students(n)=50

Q: of the random variable K repres envoys of the random variable B.

A:

Q: Given 2 distributions of chain strength (N) from 2 companies, A and B, which would you buy from (A…

A: Arithmetic mean is defined as a descriptive measure of central tendency, which describes the central…

Q: Listed below are the weights in pounds of 11 players randomly selected from the roster of a…

A: The weights of  11 players from the roster of a championship sports team are randomly selected and…

Q: Find the variance for this data set of numbers: 58,64,24,28,38,46

A: Given sample is: 58,64,24,28,38,46. Sample size = n = 6.

Q: A population of N = 200 scores has u = 40 and o = 4. What is the population variance? O 33 O 8 0 9 O…

A:

Q: The following table shows the data collected from four random samples of 50 students from a small…

A: Given the following table shows the data collected from four random samples of 50 students from a…

Q: For an analysis of variance comparing six treatment means with a separate sample of n = 7…

A: From the provided information, Number of treatment (k) = 6 Number of participants in each treatment…

Q: The symbol u represents the mean of a sample of size n. True False

A: We know that the  μ represents the population mean which is equal to the E(X) i.e. μ=E(X) is known…

Q: The HEALTH resources and services. reported that 6% of people who recieved Kidny transplants were…

A: Given Information: The proportion of the people who received kidney transplants under the age of 18…

Q: The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434…

A: Given: Significance level = 0.05

Q: Computes, the sample s.d. for the data set.

A:

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: In a population where 27% of voters prefer Candidate A, how many voters must be sampled for the…

A:

Q: Consider the patient data in the table below. Suppose that patients are randomly selected with…

A: Let X be the number of LWBS patients in this sample of size n. X ~ Binomial distribution with…

Q: The arm span and foot length were measured (in centimeters) for each of the 19 students in a…

A: Given Information:

Q: A study was commissioned to find t the residents in certain town. The s random sample of 114…

A:

Q: The table below shows the data for a random sample of fish that were collected from and later…

A: Total number of fishes is, 52+61+87 = 200 Number of bluegills is 87. Proportion of bluegills is, 87…

Q: In a population where 63% of voters prefer Candidate A, how many voters must be sampled for the…

A: If p is the population proportion, then to satisfy the conditions for normality, we need to check  n…

Q: 1. If a sample consists of n = 16 scores, of the scores would be used to calculate the range and of…

A: From the given information, Sample size (n) = 16 Thus,

Q: Of all the pupils in a particular school, 45 % go to school by bus. In a random sample of 30 pupils,…

A:

Q: The table below shows the color and the model of cars purchased by 160 randomly selected customers…

A: For the given data State the conclusion for the test.…

Q: A record store owner finds that 15,0% of customers entering her store make a purchase. One morning…

A: Given,n = 188P = 0.15SE = ?

Q: If a population has a mean of 25.6, then the mean of the sampling distribution of the sample means…

A:

Q: 4) For sample space from n(u,0), the variance of mean is o.

A: 4. Given that the sample space is selected from nμ,σ2.

Q: In a mathematics class, the scores of 10 students in their Mathematics are the following: 4 14 10 8…

A: Given data: Using Linear interpolation: 1) Arrange tha data set in increasing order,. 2) find…

Q: The following table shows the cumulative frequency distribution of the preferred  length of kitchen…

A: Given data is : Length (in meters) more than 1.0   1.5   2.0   2.5   3.0   3.5Housewives…

Q: At the distribution hub of a major grocery store chain, a large shipment of honeydew melons has…

A:

Q: a.) Is the distribution of commissions positively skewed, negatively skewed, or symmetrical? b.)…

A: we are given that  mean = 1385                              median = 1330…

Q: Let X1, X2,..., X7 denote a random sample from a population having mean u and variance o.

A: question 2: Consider, VΘ^2=V2X1-X6+X42           =144VX1+VX6+VX4           =144σ2+σ2+σ2…

Q: Consider a sample with data values of 10, 40, 60, 80, 90. Compute the variance. Select one: O a. 824…

A: Given data are 10,40,60,80,90 We have to find the sample variance

Q: Given the following numbers, 2, 2, 3, 2, 4, 8, 0 Find:  d. The variance

A:

Q: Below are the numbers of patients classified as underweight, normal weight, overweight and obese…

A: Given data,   Under weight Normal weight Over weight obese Total Diabetic 8 34 65 43 150 Not…

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.