find out the slope coefficient in given regression line y=1+0.2x

Q: 7. It is helpful to use a ratio sampling when: a) The population is widely dispersed geographically ...

A: It is an important part of statistics. It is widely used. 

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A: From given data, Total spots=18+8+10=36 Average winning =?  

Q: Please do the attached question (explained please) thanks

A: X and Y are iid random variables with n1  and n2 size .

Q: Please answer all sections

A: Using Excel, the scatter plot is calculated as, Enter data in the Excel and select it. Go to Insert...

Q: A lot of 12 compressed air bottles is checked to see whether there are any defective bottles.  Three...

A: Number of good bottles = 12 - 3 = 9 P(Lot will be rejected)= P(Getting 1 or more defective in a samp...

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

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A: In this context, the aim is to test whether there any significant association between blood group an...

Q: Ex: You throw darts at a board until you hit the center area. Your Probability of hitting the center...

A: You throw darts at a board until you hit the center area. Your probability of hitting the center are...

Q: Calculate the mean and sample standard deviation of the data shown. Round your answers to two decima...

A: Given data, X 18 11 14 27 16 17 20 26 149

Q: plz require all 4 questions answers  thank you in advance

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A: Given Information: 90% of the people interviewed were unaware that maintaining a healthy weight coul...

Q: (a) Plot these data. (b) Develop the linear estimating equation that best describes these data. (c) ...

A: Here you are given the data for year and sales and it is as follows; It is asked  Plot the given d...

Q: do fast

A:

Q: TF.14 A random sample of 65 households from a certain town is selected and the monthly electricity b...

A: Given, n= 65 s = $21.20 x¯ = $98.50

Q: Using venn diagram compare and contrast Systematic and random errors.

A: Diagram :

Q: Assume the population size is 500 unites with mean (Y = 12.5) and variance o = 18.4. The estimated s...

A: From the given information, Consider, Population size (N) =500 Y=12.5σ2=18.4Margin errorE=0.05Confid...

Q: Outliers have VERY LITTLE OR NO EFFECT on which of the following? Check all that apply. Mean Mode St...

A: we know that outlier is the extreme value in the data set or the set of observations. we know that r...

Q: Use the sample information x = 38, o = 4, n= 11 to calculate the following confidence intervals for ...

A: Given Information: Sample mean x¯=38 Population standard deviation σ=4 Sample size n=11 To calculate...

Q: Assume that the group has a portfolio of 6 stocks. There is 30% chance that any one of these stocks ...

A:

Q: Suppose, you are running an experiment for 'x' times where the probability of success in a single ex...

A: Given : It is a binomial distribution with two outcomes as either success or failure. Probability of...

Q: Find the required sample size, n, if c=0.89, E=0.05, and p^ =.63

A: Given data, E=0.05  p^ =.63 c=0.89 n=?   z-value at 89% confidence is Zc=1.60  

Q: How do I calculate z score?

A: The z-score describes the position of a raw score in terms of its distance from the mean, when measu...

Q: A set of three scores consists of the values 2, 5, and 8.   Σ(X – 1)² = ?

A: Given: A set of three scores consists of the values 2, 5 and 8. Find ∑iX-12 Substitute the given val...

Q: The pulse rates in bpm of a random sample of ten male 200 Level Nursing students of ABU Zaria are gi...

A: The test hypothesis are, H0: μ = 72 H1: μ ≠ 72. This is two-tailed test. We reject the null hypothes...

Q: Problem 3 The table below show the growth rates of GDP and employment or 25 OECD countries for the p...

A: 1. The scatter plot for the two variables i.e employment and GDP is given below : There seems to be...

Q: Q2 please answer all sections

A: The excel steps to obtain the scatter plot for the data is obtained as- Enter the data in the excel...

Q: If, in an analysis of variance, you find that MSTR is greater than MSE, why can you not immediately ...

A: While performing Analysis of Variance (ANOVA), we calculate the test statistics which is the ratio o...

Q: The grades for 20 students on the most recent exam are given in the data table below. Round your ans...

A: 44 46 46 46 48 49 53 65 66 66 68 76 78 80 82 90 92 93 95 96 ...

Q: A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40-hour workweek...

A: Given: Sample size, S = 300 Sample size where Bob was found to be working = 250

Q: 2. An octahedral die has eight faces numbered from 1 to 8. The random variable X is the scoreobtaine...

A: i) Probability that the sum of the two scores is 10: P(sum of two scores is 10)=P(x=2,x=8)+P(x=3,x=7...

Q: 18. Continuing the previous problem, assume, as inProblem 11, that the damage amount is normallydist...

A: Given: The value of the mean is $3000 and standard deviation $750. The calculation as follows,

Q: 1. Develop a simple linear regression equation for starting salaries using an independent variable t...

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

Q: 1. A sampling frame is: a) A summary of the various stages involved in designing a survey. b) An out...

A: Note: As per our guidelines we are supposed to answer only one question. Kindly repost other questio...

Q: Suppose that we have a population with proportion P = 0.40 and a random sample of size n = 100 drawn...

A: Given information: Population proportion p0=0.40 Sample size n=100

Q: 1. Assume there are a population size N = 6 with units (2,4,6,8, 10, 12), and out of which sample si...

A:

Q: Please help me answer

A: 1. Correlation coefficient measures the strength and direction of the linear relationship between tw...

Q: Suppose, you are running an experiment for 100 times where the probability of success in a single ex...

A: Solution: Given information: Let X be the random variable that the number of success in a experiment...

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.