Why did the students come up with different values for the variable y

Q: A market researcher's claim is that women spend more time each day on Facebook than men.  If p1…

A: Here let p1 denote the proportion of women and p2 denote the proportion of men. The claim is that…

Q: Va – vãŸdx.

A:

Q: In​ Lindsay's class, there were three students who scored 80 on a test and six students who scored…

A:

Q: How would you report on the meaning of these polls to the party membership?

A: Here given A political party received an average of 34% support in recent polls plus or minus 3.4%,…

Q: As an economics class project, Debbie studied a random sample of 14 stocks. For each of these…

A:

Q: If Julio’s score on an IQ test is 73, what is his score as a z score? (M = 100, s = 15)

A: The z-score is obtained below: From the given information, the Julio’s score on an IQ test is 73.…

Q: Many young men in North America and Europe (but not in Asia) tend to think they need more muscle to…

A: It is given that,Sample mean = 2.35.Population standard deviation, sigma is 2.5.The sample size, n…

Q: Last week Sarah had exams in her math and Spanish classes. On the math exam, the mean was u=40 with…

A: According to the given information in this question We need to find the z score of both

Q: For each of the following variables, identify the type of variable (categorical vs. numeric). (I)…

A: Data that are qualitative in nature and quantitative in nature are known as categorical and…

Q: What are the Irrelevant variables?

A: Irrelevant variables are complement to omitted variable and A variable is irrelevant if its true…

Q: Ms. Eisenman wanted to know her average student’s score on the most recent chapter test and what…

A: Ms. Eisenman wanted to know her average student’s score on the most recent chapter test and what…

Q: If P(A) 0.3 , P(B) = 0.8 and P(A or B) = 0.9 Find P(A and B).

A:

Q: Here we have data that represent the results of a study comparing different viewing distances for a…

A: Introduction The null hypothesis assumes that the average ratings given to the four viewing…

Q: When Z = -1.2, M = 21.6, and s = 1.5, what is X?

A: Answer: From the given data, Z value = -1.2 Mean (M) = 21.6 Standard deviation (s) = 1.5

Q: Match these values of r with the accompanying scatterplots: -0.758, 0.4, -1, -0.995, and 0.995.…

A: 1. Downwards trending line makes the perfect negative correlation 2. Upwards trending line shows the…

Q: Match these values of r with the accompanying scatterplots: 0.994, 0.359, 0.713,-0.994, and Click…

A: Scatter plot shows the data points, it is used to determined the strength and direction of the…

Q: a. Sx-14= 8r+4

A: Given  a.) 5x -14 = 8x+4 b.) -12(-4x + 3 ) -2 = 1 +12 x

Q: when x =8what is y and what does it mean in this context?

A: The line of best fit obtained by using the to determine the relationship between the amount of an…

Q: 15. An experiment was designed to test whether or not students can tell the difference between tap…

A: In this experiment we are going to test whether or not students can tell the difference between tap…

Q: What is the difference between dependent and independent variable?

A: Our aim is to state the difference between dependent and independent variable

Q: What is the error?

A: The formula of standard deviation is:

Q: A recent year was randomly picked from 1985 to the present. In that year, there were 2,052 Hispanic…

A: Public university:Sample size Number of Hispanic students Community college:Sample size Number of…

Q: A study was conducted to investigate a relationship between the colors of helmets worn by motorcycle…

A: When the given sample size is less than 30, then we use a small sample test in hypothesis testing.…

Q: How are r and r squared interpreted?

A: The correlation coefficient (r), is used to define the linear relationship between the independent…

Q: What is the independent variable and the dependent variable?

A: Dependent variable is the response variable that we observe from the subjects under study, and…

Q: Which of the choices identifies the correct value of the coefficient of determination, R², and gives…

A: In the regression analysis, a coefficient of determination R2 is used to measure the explained sum…

Q: The expression S(Xi) directs us to find the  sum of scores median  average of the scores  middle…

A: The expression S(Xi) directs us to find the sum of scores

Q: The Chair of Psychology, Dr. Vicary, takes her cat, Fluff,  to the veterinarian for an annual…

A: Given Data: Fluff's Weight Z =  -1.88  Fluff's Temperature Z =  1.15   Z-score represents the…

Q: n running a chi-square, which of the following combinations do you need? Categorical Independent…

A: A chi square test is used to determine whether the two categorical variables are correlated (or)…

Q: The table below shows the marks out of 40 for nine students on two tests. The tests cover similar…

A: The question is about correlation and regression Given : To find : a ) Pearson correlation…

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.