In addition to two clusters, the plot shows an overall roughly straight line pattern. The least squares regression line for predicting average SAT math score from percentage taking is average math SAT score = 602.4 - (1.142 times percentage taking) In Georgia, the percentage of high school seniors who took the SAT was 61%. Predict their average score to the nearest whole number. (The actual average score in Georgia was 515)

Q: The regression equation is ŷ=+x. (Round to five decimal places as needed.)

A: From given data we have : x:7.5,23.9,4.3,22.1,7.1,4,21.4 y:23.6,75.1,13.5,69.4,22.3,12.6,67.2

Q: Use the accompanying paired data consisting of registered boats (tens of thousands) and manatee…

A: Use EXCEL to determine the regression equation. EXCEL procedure: Go to EXCEL Go to Data>Data…

Q: In a random sample of ten cell phones, the mean full retail price was $494.00 and the standard…

A: As per our guidelines we are suppose to answer only one question. Given,sample size(n)=10sample…

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A: Given information: Mean=μ=18Standard deviation=σ=3.9 Chebyshev's theorem: At least 75% of the…

Q: ind the z-scores that delineate the middle 99% of all values from the others. Enter your answers to…

A: given data, find out the z score valuesfor the middle 99% of all values from the othershere middle…

Q: A car insurance company wanted information about the age of its customers. From a sample of 155…

A: given data n=155x¯=36s=11.5CI=98%α=1-0.98=0.02df=n-1=155-1=144

Q: A population of values has a normal distribution with = 180.8 and σ = size n = 10 is selected, 19.2.…

A: Given,mean(μ)=180.8standard deviation(σ)=19.2sample size(n)=10

Q: Square Footage, x 2148 3231 1177 1988 3064 2735 4146 2215 2625 1629 1773 3887 Selling Price ($000s),…

A: The independent variable is Square Footage. The dependent variable is Selling Price. Square…

Q: 7.22 A final one-sample t test. The one for testing Ho: μ = 20 Ha: μ < 20 based on n = 9…

A: The sample size n is 9 and the t value is -1.85.

Q: Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and…

A: From the information out of 20 randomly selected presidents 8 are  taller than their opponents.

Q: The probability function of a continuous random variable, X, is given by the equation: fx(x) =…

A:

Q: X is a continuous variable that takes on values between 5 and 100. Z is a binary variable. Sketch…

A: X is a continuous variable that takes on values between 5 and 100 Z is a binary variable. To plot…

Q: ^ Commuters A recent random survey of 100 individuals in Michigan found that 84 drove to work alone.…

A: given data  x1 = 84n1 = 100x2 = 63n2 = 16099 % ci for p1 - p2

Q: It is known that 5% of the books bound at a certain bindery have defective bindings. Find the…

A: Givenp=0.05sample size(n)=100Let "x" be no.of books bound by this bindery will have defective…

Q: A box contains 13 green marbles and 7 white marbles. If the first marble chosen was a green marble,…

A: given data, 13- green marbles 07- white  marbles 20 - total marbles if the first marble choswn was a…

Q: Here is a data set: 310 302 300 336 365 306 365 297 330 311 326 343 332 278 307 311 278 330 297 300…

A: Introduction: It is required to construct a grouped frequency distribution table from the given raw…

Q: The average prison sentence for a person convicted of second-degree murder is 15 years. If the…

A: From the provided information, Mean (µ) = 15 Standard deviation (σ) = 2.1 X~N (15, 2.1)

Q: It is claimed that 73% of all students at a college still need to take another math class. Baseed on…

A: Givenp=0.73sample size(n)=37Let "x" be the no.of students need to take another math…

Q: a) The college bookstore tells prospective students that the average cost of its textbooks is $52. A…

A: Given are two questions based on hypothesis test for mean.

Q: Can you please fill in the blanks? I'm confused where each answer goes

A: a). b1 = 7.6       b0 = 2246.7    Y = 2246.7 + 7.6x   b).  $7.6

Q: Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a…

A: Given: n1 = 6 n2 = 6 Formula Used: Test-statistic t = X1-X2sp1n1+1n2 sp = (n1-1)s12+(n2-1)s22n1+n2-2

Q: Find the margin of error for the given values of c, s, and n. c= 0.98, s = 4, n = 20 E Click the…

A: Since nis small (less tha 30) and population sd is not known, utilizing t might very use for this…

Q: Stem-and-Leaf Display N = * Leaf Unit = 0.1 9 0 002334666 20 1 01123356777 (**) 2 00122223346799 ***…

A:

Q: QUESTION B Find the confidence level related to the critical value t12 1.678 where the sample size n…

A: given data  find level of ci related to tα2 = 1.678   and n = 15

Q: e confidence interval for a population mean is (240.53, 240.79). What are the sample mean and the…

A: The confidence interval for a population mean is (240.53, 240.79)WE HAVE TO FIND OUT THE MEAN AND…

Q: We consider a pair of continuous random variables (XY) whose joint density is give f(x, y) = {k(² +…

A: As per our guidelines I can solve only first three subparts. Kindly post the remaining subparts…

Q: The average height of students in a state from an SRS of 17 students gave a standard deviation of…

A: given data   sample size(n) = 17 sample standard deviation(s)  = 2.9construct 95 % ci for σ.

Q: The claim is that weights (grams) of quarters made after 1964 have a mean equal to 5.670 g as…

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

Q: The price of IPhone 13 pro max is recorded at a random sample of 40 electronics stores in UAE. The…

A: Given that  Sample size  (n) = 40  Confidence level (C) = 90% 90% Confidence interval = ( 3245 Dhs ,…

Q: Withdrawal symptoms may occur when a person using a painkiller suddenly stops using it. For a…

A: Given n=1100 P=0.01

Q: According to a survey, the probability that a randomly selected worker primarily drives a car to…

A: given data P( drives a car) = 0.757P(use public transport) = 0.083

Q: For a certain type of light, the number of hours a bulb will bum before requiring replacement has a…

A: Given,Mean(μ)=4000standard deviation(σ)=300sample size(n)=5000

Q: The accompanying data represent the number of days absent, x, and the final exam score, y, for a…

A: Given information: x y x^2 y^2 xy 0 88.3 0 7796.89 0 1 86.7 1 7516.89 86.7 2 82.6 4…

Q: a) Are the data normal? Run Descriptive statistics in Excel and support your answer. b) Show the…

A:

Q: ) Hence test whether ? is significant. Give reasons for your answer.

A: From the above output  The test statistic F=7954393/925892 F=5.31  P value of the test statistic is…

Q: The grade point averages (GPA) for 12 randomly selected college students are shown on the right.…

A: Given data is,2.3 , 3.1, 2.9, 1.6, 0.9 , 4.0, 2.4, 1.3, 3.6, 0.1, 2.4, 3.3sample size(n)=12

Q: is claimed that 75% of all Americans live in cities with population greater than 100,000 people.…

A:

Q: Express the confidence interval (0.018,0.092) in the form of p-E<p<p+E.

A: GIVEN DATA ,  confidence interval :(0.018,0.092)we have to find out the proportion  and margin of…

Q: USE THE 8-STEP HYPOTHESIS TESTING The following table shows the distribution of uric acid…

A: Given: The following table shows the distribution of uric acid determinations taken on 250 patients.…

Q: Out of 421 applicants for a job, 128 have over 5 years of experience and 57 have over 5 years of…

A: applicants  over 5 years experience  not over 5 years experience  total graduate  57 104 161 not…

Q: Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 5.2…

A:

Q: Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a…

A:

Q: Reading Improvement Program To help students improve their reading, a school district decides to…

A:

Q: At a large publishing company, the mean age of proofreaders is 36.2 years and the standard deviation…

A: From the provided information, Mean (µ) = 36.2 Standard deviation (σ) = 3.7 X~N (36.2, 3.7)

Q: Victims of Violence A random survey of 86 women who were victims of violence found that 20 were…

A: given data women : n1 = 86x1  = 20men : n2  = 54x2 = 6α = 0.10claim : p1 ≠ p2

Q: A survey of 18 adults in UAE found that the mean age for a person's primary vehicle is 3.9 years and…

A: given data sample size (n) = 18sample mean ( x¯ ) = 3.9sample standard deviatio (s) = 0.695% ci for…

Q: The work of a lollipop lady in charge of a primary school crossing was monitored one morning. The…

A:

Q: Assume the average life-span of those born in the U.S. is 78.2 years with a standard deviation of 16…

A: Given information: The average life span of those born in country U is 78.2 years and its standard…

Q: In a survey, 16 people were asked how much they spent on their child's last birthday gift. The…

A: Given Mean=36 Standard deviations=16 n=16

Q: USE THE 8-S Refer to the study by Ca on the course of the ill

A: By applying the Chi-square test for association