Sherds of clay vessels were put together to reconstruct rim diameters of the original ceramic vessels at the Wind Mountain archaeological sitet. A random sample of ceramic vessels gave the following rim diameters (in centimeters).

Q: A sampling technique in which the researcher uses the referrals of the respondent is known as Oa…

A: We know, 1) Simple Random Sampling: The simple random sample means that every case of the population…

Q: Q): PAve the fallowag identiles. ídentities. (6):- HS= In

A:

Q: 0% IC'O7 crushed walnuts 14.29%

A: A test for two paired samples is a hypothesis test that attempts to make a claim about population…

Q: a. Calculate the sample means. Xcorporate =[ XNavy =0 (Round to two decimal places as needed.)

A: The data shows the prices of the same items at a military commissary and a nearby corporate store.

Q: Find the Zc value for a 92% confident interval when the sample sizes 27

A:

Q: A poll found that 78 people out of a survey of size 109 watch at least three hours of TV per day…

A: Given data, n=109 x=78 sample proportion p=?

Q: Describe the sampling distribution of . Assume the size of the population is 30,000. n​=700, p=.144…

A: Given,   Sample size = 700 Proportion = 0.144   The objective is find the sampling distribution.

Q: Read the description below and determine the method of sampling. Ask four classmates to rate the…

A: Answer is  Convenience

Q: Find the sample size using the range rule of thumb to estimate a.

A: Given : Highest observation=155 bpm Lowest observation=35 bpm Margin of error=E=3 bpm Significance…

Q: Use the ogive to the right to approximate the sample size.

A: Given: The approximate sample is given as,

Q: A researcher at a major hospital wishes to estimate the proportion of the adult population of the…

A: Obtain the large sample size. The large sample size is obtained below as follows: Use EXCEL…

Q: A footwear retailer sold 7 pairs of sneakers for $55 each, 5 pairs of leather shoes for $160 each, 8…

A:

Q: Randomly selected households from each barangay in Marikina City were surveyed to know the number of…

A: Sampling: The method of drawing samples from the population. It is beneficial over studying the…

Q: Find sample size CI=75% E=3.61 Stand. dev.=6.78

A:

Q: Based on the histogram, draw the ogive (the cumulative frequency polygon) for the sample data.

A: The cumulative frequency for given frequency is, Number of hours worked per week Frequency…

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at…

A: Sampling methods: In simple random sampling, all the units in the population have equal chance of…

Q: The sample size is: Score 61 to 70 71 to 80 3 81 to 90 12 91 to 100 6

A: The sample size, n is given below: n=∑f=3+9+12+6=30

Q: town council commissioned a random sample of 85 households to estimate the number of four-wheel…

A: From the given information we find the estimate the number of four-wheel vehicles per household in…

Q: In the ris dataset in R, how would you visualise the relationship between species and petal.Length ?…

A: Scatter plot shows the relationship between quantitative variables.  Here species is categorical…

Q: From the sample statistics, find the value of p1 - p2, the point estimate of the difference of the…

A: From the provided information,

Q: estimate the sample size for a population of 750 people.

A: To estimate the sample size the required calculation can be defined by the formula  Slovin's…

Q: When calculating the sample size for a research study, a researcher should always round the final…

A: The statement is true.

Q: A random sample of 14 married couples had their heights measured with the following results (X=man's…

A: Use Excel or any other software to draw the scatterplot.Steps of Excel:1. Enter the data.2. Go to…

Q: A footwear retailer sold 12 pairs of sneakers for $45 each, 11 pairs of leather shoes for $140 each,…

A:

Q: Classify each sample as random, systematic, stratified, or cluster and explain your answer. Every…

A: Classify each sample as random, systematic, stratified, or cluster and explain your answer. Every…

Q: Find the interval containing the middle-most 34% of sample means:

A: Let X denote the distribution of values and x¯ be the sample means of the samples of size n=15.…

Q: Based on the histogram, find the portion of ATHs in the sample that are at least 1000 thousand…

A: Consider a random variable X that defines the number of ATH in the sample.

Q: hat is the shape of distributio

A: Gien: Stem and leaf plot.

Q: A pollster uses a campus directory and contacts every 50th person listed. What type of sample is…

A: Simple random sampling: In simple random sampling, all the units in the population have the equal…

Q: A quality control officer in a food processing factory selects every 20th jar of pickles from the…

A: In the above question food processing factory selects every 20th jar of pickles from the conveyor…

Q: Find the First Quartile 12, 14, 18, 32, 59, 82

A: Given :                 12 , 14 , 18 , 32 , 59 , 82 To find :                   The first…

Q: The weights of seven boxes of cereal are: {12 oz, 10 oz, 8 oz, 9 oz, 10 oz, 13 oz, and 15 oz}…

A:

Q: A ZABC measures 90° and ZABD measures 25°. What is the measurement of ZDBC?

A:

Q: The accounting department took a simple random sample of 7 audits. The number of days to complete…

A: Given data, 48,41,42,42,45,43,47   Median=?

Q: Rangers tagged and released 250 small mouth bass into a Round Lake. A month later, fishermen on the…

A: Given that 250 small mouth bass are tagged and released in lake. A month later a sample of 50 mouth…

Q: The ages of a sample of 10 people in a shopping mall video arcade were determined as shown below.…

A: Given data set7,10,17,8,14,11,6,17,8,12sample size(n)=10

Q: In the formula x±zol , the subscript l 2 refers to the area in the lower tail or upper tail of the…

A: We know that the 100(1-α)% confidence interval for the population mean μ is defined as below: x̅ ±…

Q: Use the ogive to the right to approximate the sample size. 券

A: Result: In frequency distributions, the largest cumulative frequency value gives the the total…

Q: A poll found that 70 people out of a survey of size 127 watch at least three hours of TV per day…

A: Given  sample size n = 127 X : Number of people watch tv at least three hour per day X = 70

Q: The NBA commissioner wishes to know how many hours per day NBA players watch TV. He sampled the…

A: Given data, 4,2,6,1 Find the sample mean and sample standard deviation?

Q: The median of the test scores given in the figure below is: Stem Leaves 667 6 2359 0011689 11568…

A: Median is the middlemost value of the data when they are arranged in an order. It is denoted by M.…

Q: the number of observations and measurements taken is the sample size True or False

A: We have given that, the number of observations and measurements taken is the sample size?  True or…

Q: he required sample size is. Round up to the nearest whole number as needed.)

A: It is given that confidence level is 0.98, population standard deviation is 17.8 and the margin of…

Q: Every hour, a random sample of two small boxes is collected and the weight of each box is measured.…

A: Given information: The measured weights of a random sample of two small boxes are given. The results…

Q: Given the sample size of n=225, you can work with the -table. Ox? F

A: Given that  According the World Health Organization, the Body Mass Index (BMI=Weight in…

Q: The city council of Pine Bluffs is considering Increasing the number of police In an effort to…

A: Regression is one type of statistical procedure to study relationship between one dependent and one…

Q: How many blocks were used in this experiment?

A: Given that number of levels k = 5 We have to find number of blocks b

Q: Which type of sampling method is used in the following? All students living on each floor of a…

A: In simple random sampling, the samples are chosen at random from the whole population. In cluster…

Q: tratified samples are widely used to study large areas of forest. Based on satellite images, a…

A: Given Information: There are 4 strata namely Climax 1, Climax 2, Climax 3 and Secondary. Number of…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.