Question

the data from exercise 2 follow

Xi = 3  12  6  20  14

Yi= 55 40 55 10 15

The estimated regression equation for these data is  = 68 -3x.

a. Compute SSE, SST, and SSR.

b. Compute the coefficient of determination r2. Comment on the goodness of fit.

c. Compute the sample correlation coefficient.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Correlation

Regression Analysis

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: G and H are mutually exclusive P(G) = 0.5 and P(H) = 0.3 Find P(H or G)

A: Given: P(G) = 0.5 and P(H) = 0.3

Q: Conduct your answer in excel.

A: Given Information :  A recent article in Bloomberg Business week listed "Best small companies" . We ...

Q: Generally speaking, would you say that most people can be trusted? A random sample of n1 = 250 peopl...

A: Given: n1 = 250 r1 = 45 n2 = 280 r2 = 71 ∝ = 0.05 Thus, we have, p^1=r1n1=45250 = 0.18p^2=r2n2=71280...

Q: use a,b,c,d,e to answer number 8

A: Given result from StatCrunch

Q: A sample of n=9 individuals is selected from a population with a mean of μ=10. A researcher suspects...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: In a game of​ chance, players pay $5 for a chance to win one of two​ prizes: a $100 gift card or a $...

A: Given, In a game of​ chance, players pay $5 for a chance to win one of two​ prizes: a $100 gift card...

Q: The test statistic of z= - 2.18 is obtained when testing the claim that p <0.56. a. Using a signific...

A: a. The claim of the test is p&lt;0.56 which is left tailed test. The Alpha value is 0.01. The critic...

Q: Students investigating the packaging of potato chips purchased 6bags of chips marked with a net weig...

A: a) Checking Assumption: By the 10% condition sapling distribution of the sample mean is approximate...

Q: One sample with n =8 has a S2 = 6 and a second sample n = 8 scores has a S2 = 10.  If the pooled var...

A: Click to see the answer

Q: The weights of the population of cans of Coke are normally distributed with a mean of 12 oz and a po...

A: The standard error of the sampling distribution of the sample means: Plug in all the values in the ...

Q: Let X represent the full height of a certain species of tree. Assume that X has a normal probability...

A: Given: Mean of X μ=97.9 Standard deviation of X σ=5.4 X~N97.9, 5.42

Q: A sample of n=9 individuals is selected from a population with a mean of μ=10.  A researcher suspect...

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

Q: ation indicate that the nation indicate that the ation indicate that the e

A: i resigned other fuckers.

Q: Last year the average math SAT score for students at one school was 775. the Headmaster introduced n...

A: Statistical significance : Statistical significance indicates whether there is a sufficient evidence...

Q: A survey was given to 18 students. One question asked about the one-way distance the student had to ...

A: Click to see the answer

Q: x y 10 8.04 8 6.95 13 7.58 9 8.81 11 8.33 14 9.96 6 7.23...

A: Click to see the answer

Q: Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a)...

A: The level of significance is 0.05 (=1-0.95).

Q: For a new study conducted by a fitness magazine, 295 females were randomly selected. For each, the...

A: The first sample size is 295, September-February period, participants consumed a mean of 2,385 calor...

Q: Categorize the type of sampling used in each of the following situations (simple random, stratified,...

A: In cluster sampling, the population is divided into naturally occurring groups called clusters. Some...

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch ther...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: In a clinical trial,15 out of 800 patients taking a prescription drug complained of flulike symotoms...

A: Here we have given sample praportion i.e. p^=15800=0.01875 P=2.9% P=0.029 we have to test the null h...

Q: A subset of the population of interest is often referred to by what statistical term?     A sa...

A: Example: A car owners association’s has 150 members from that 50 of the owners are selected to be in...

Q: An independent random sample is selected from an approximately normal population with unknown standa...

A: (a) The degrees of freedom is 5, which is obtained as follows: df=n-1    =6-1    =5 The critical-val...

Q: In a survey of 4042 adults, 737 oppose allowing transgender students to use the bathrooms of the opp...

A: x = 737 n = 4042

Q: Statistics Question

A: Given regression equation

Q: Aircrew escape systems are powered by solid propellant. The burning rate of this propellant is an im...

A: Denote μ as the population mean burning rate.

Q: Warranty records show that the probability that a new car needs a warranty repair in the first 90 da...

A: Binomial distribution with n=3 and p=0.05 ==&gt; P(X=x)=3Cx*(0.05^x)*(0.95^(3-x)) for x=0,1,2,3 The ...

Q: A sample of n=9 individuals is selected from a population with a mean of μ=10. A researcher suspects...

A:  Null Hypothesis H0:  Alternative Hypothesis Ha: 

Q: A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have c...

A: Given information- Population proportion, p = 0.90 Value of z-test statistics = -2.33 We have to tes...

Q: Two separate samples are selected from the same population. Each have an n=8. Both samples receive a...

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to ou...

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

A: Given that there are 6 stocks There is a 30% chance that any one of the stocks will increase in valu...

Q: Let XX represent the full height of a certain species of tree. Assume that XX has a normal probabili...

A: Let X be a random variable that follows a normal distribution with mean μ and variance σ2.Then, z=X-...

Q: Also need 95% interval. Thank you.

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find z-cri...

Q: Find the z-score location of a vertical line that separates a normal distribution as described in ea...

A: As per company terms and conditions we can answer only 3 sub parts for a question please find below ...

Q: Assume a new measure of Intelligence Quotient (or IQ) has been developed. The mean IQ for the popula...

A: Standard deviation:   It is nothing but the variation between each of the point from the mean is kno...

Q: A researcher records the following times (in seconds) that it took a group of students to complete a...

A: Given, The  values for standard normal : mean = M = 18 standard deviation = SD = 2 probability = 0.8...

Q: Determine the minimum sample size required when you want to be 95% confident that the sample mean is...

A: The sample size can be calculated as: n=z×σE2 Here, z = desired confidence level E = The allowable m...

Q: You are examining a data set with a condensed stem-and-leaf plot. (Hint: Look at the plot carefully....

A: Min value = 24Max value = 41.3Data values in Penultimate class = 0 Data values in the data set = 31

Q: Solve the problem.After a particular heavy snowstorm, the depth of snow reported in a mountain villa...

A: Click to see the answer

Q: Solve the problem.Suppose x is a random variable best described by a uniform probability distributio...

A: Given : x ~ Unif(70, 100) P(X&gt;a )=0.9 P(X&gt;a )=∫a1001100-70dx

Q: need question 20, use top paragrapgh to help answer

A: (20) The value of z-test statistic is, z = 1.50  

Q: Department of Agriculture (USDA) found that the proportion of y st is 0.238. Suppose that Lance, a n...

A: Let p denote the proportion of young adults ages 20-39 regularly skip eating breakfast in the united...

Q: In a recent year, the MCAT total scores were normally distributed, with a mean of 500 and a standard...

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

Q: (a) mean = standard deviation= (b) mean= standard deviation= (c) Use the results of part (a) and par...

A: (a) The sample size is n = 5n=5. The provided sample data along with the data required to compute th...

Q: Calculate the mean blood glucose level for a study measuring the blood glucose levels of 10 individu...

A: Let "X" be individuals whose blood glucose readings. X 88 97 101 104 104 107 109 117 121 147 ...

Q: One card is randomly drawn from a standard deck of 52 cards as shown in the figure below.  Using the...

A: In a standard deck of playing cards there are total 52 cards and 4 suits, such as hearts, diamonds, ...

Q: Find the sample variance of the following set of data: 4,12,7,5

A: Click to see the answer

Q: Solve the problem.Suppose the candidate pool for two appointed positions includes 10 women and 5 men...

A: Here N= 5men+10women =15   Selecting 2 men from 5 men is 5C2 ways   Probability of selecting of 2men...

Q: 187 families have health insurance out of a random sample of 292 families. Kaiser states that the pr...

A: (c) To find the critical value use invNorm(). (d) From the information, the hypotheses test for popu...

Q: Consider a randomized block design involving three treatments and two blocks. Define all variables. ...

A: Given: The randomized block designs that involves three treatments and two blocks are as follows,