Given the Academic Performance and number of hours studying daily of 10 randomly selected students at Urdaneta City University below. Calculate the Spearman Rank-order Correlation Coefficient. Interpret the results.
Q: We are interested in determining if absences from a class affect your overall class grade. The 101…
A: Simple linear regression model: A simple linear regression model is given as y^ = b0 + bx + e…
Q: Researchers looked at the average number of hours of sleep per day in a group of 8 college…
A: Given data set is X={6,6,5,7,5,4,8,5}Arrange the data set in ascending order4, 5, 5, 5, 6, 6, 7,…
Q: For this question: The price drivers pay for gasoline often varies a great deal across regions…
A: Given: The number of observations are N=33. The provided data is: Metropolitan area Shell BP…
Q: 4h. The National Football League (NFL) records a variety of performance data for individuals and…
A: The question is about regression Given : c ) estimated regression eq. e ) pred. % of games won by…
Q: Catherine is a junior reporter. As part of an investigation into consumer affairs she purchases 0.5…
A: From the provided information, The number of observations (n) = 12
Q: We are interested in determining if absences from a class affect your overall class grade. The…
A: Simple linear regression model: A simple linear regression model is given as y^ = b0 + bx + e…
Q: A survey of a group's web habits for the past month obtained the following information. 44% visited…
A: According to the given information, we have Given that a survey of a group's web habits for the past…
Q: Early in the basketball season, 12 college teams appeared to be outstanding. A panel of…
A: From the provided information, Coefficient of rank correlation rs = 0.727 Sample size (n) = 12
Q: Let x be the percentage of 16- to 19-year-olds not in school and not high school graduates. Let y be…
A:
Q: An occupational therapist (OT) is comparing two different treatments to see which is more effective…
A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…
Q: Find the 59th, 75th, 90th Percentile of the Ungrouped Data Given: 99 93 85 84 96 87 80 71…
A:
Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…
A:
Q: Let x be the percentage of 16- to 19-years-olds not in school and not high school graduates. Let y…
A:
Q: Following a blood donation campaign, a researcher was interested in collecting information regarding…
A: Consider the information regarding the different blood types is collected as follows:…
Q: 3. Classify the following examples of data as either true or false: b. Current grade point average…
A: The discrete data essentially includes the quantitative values, which are assumed to be countable…
Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…
A: Hey there! As per our policy we can answer only 3 sub-parts at a time. Please make a new request for…
Q: The following data represent the miles per gallon for a particular make and model car for six…
A:
Q: The following two-way table of data gives the number of female and male faculty members for…
A: From the provided information, The table is as follow: Female Male Total Assistant professors…
Q: Anya gathered a random sample of chips from a popular company. She calculated data on different…
A: Given that Arya gathered a random sample of chips from a popular company and for the data collected,…
Q: Given the following sample data: x 420 610 625 500 400 450 550 650 480 565 y 2.80 3.60…
A: From given we have : x 420 610 625 500 400 450 550 650 480 565 y 2.80…
Q: Consider the relationship between the number of bids an item on eBay received and the item's selling…
A: Given: Price in Dollars, X No. of bids, Y 20 10 23 11 26 12 29 18 41 19
Q: 3. Classify the followi b. Number of credit h
A: Statement: The number of credit hours taken by a student this semester is discrete data.
Q: Create a histogram of the following data: 24 25 25 27 27 30 35 35 36 38 38 39 40 40 40 45 45 45 45…
A: Given that Data: 24 25 25 27 27 30 35 35 36 38 38 39 40 40 40 45 45 45 45 47 52 52 52 58 59 59 61…
Q: Totals: No. of Workers No. of Units Produced Y 120 180 220 224 176 320 270 275 1785 X 10 12 14 16 13…
A:
Q: Use the following information to answer the question. A researcher wants to study whether there is…
A: Chi square test for Independence A researcher wants to study whether there is a relationship between…
Q: write down the eight famous steps that are used to conduct correlation to examine if there is any…
A: From the given Data : Let Population represented by X : X Values Government expenditure represented…
Q: The US Census Bureau collects statistics comparing the various 50 states. The following table shows…
A: The independent variable is Poverty. The dependent variable is Infant Mort. This is simple linear…
Q: Calculate a point estimate for the proportion of all MVCC students that have brown eyes. Do not…
A: A random sample eye colors collected from a group of 40 MVCC students are considered in which there…
Q: Calculate the median percent of white persons living below poverty level. This will be the second…
A: To find the median for a data set, first we need to sort the whole data in ascending order. Then use…
Q: A contributor for the local newspaper is writing an article for the weekly fitness section. To…
A: The question is about confidence intervalGiven :Randomly selected no. of people who exercise in the…
Q: mmarizes the data? O Dark Milk White Total Underclassmen 35 80 35 150 Upperclassmen 25 60 15 100…
A: Given: n(total) = 250 n(underclass) = 150 n(dark | underclass) = 35 n(milk |upperclass) = 60…
Q: tects data each year on price of a big Mac in various untries ar the wor The price of a Big Mac for…
A: Given that Sample size n =8 Population mean μ =3.57
Q: The following table gives the proportion of samples of college students in Washington as compared to…
A: Given that Total number number of sample (n1) = 100 n2 = 100 Number of favorable events (x1)=42…
Q: The table shows a portion of the data for a sample of 51 private colleges and universities. The data…
A: The provided data set is: School Year Founded Tuition & Fees % Graduate School Year Founded…
Q: 4. Find the mode of this data set: 3, 3, 4, 8, 5, 8, 1, 6, 7. O A. no mode OB. 3 O C. 5 OD. 3 and 8
A: we have to find mode of data set : 3,3,4,8,5,8,1,6,7
Q: 3. A consumer panel tested nine makers of air conditioners for overall quality. The ranks assigned…
A: The measurement of correlation is 1. Scatter plot, 2. Karl Pearson's correlation coefficient 3.…
Q: a.Twelve homes in one city were underinsured on the average of $5,000, 24 homes in another city were…
A: The average can be calculated using the formula:
Given the Academic Performance and number of hours studying daily of 10
randomly selected students at Urdaneta City University below. Calculate the
Spearman
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
- The Economist collects data each year on the price of a Big Mac in various countries around the world. The price of a Big Mac for a sample of McDonalds restaurants in Europe in May 2009 resulted in the following Big Mac prices (after conversion to U.S. dollars): 3.80 5.89 4.92 3.88 2.65 5.57 6.39 3.24The mean price of a Big Mac in the U.S. in May 2009 was $3.57. For purposes of this exercise, assume it is reasonable to regard the sample as representative of European McDonalds restaurants. Does the sample provide convincing evidence that the mean May 2009 price of a Big Mac in Europe is greater than the reported U.S. price? Test the relevant hypotheses using a = .05. Assume a normal distribution of the data. x = S= Ho: μ = Ha: Select an answer (Put in the correct symbol and value) α= P-value: = Based on the above we choose t✓ Select an answer Question Help: Post to forur Reject the null hypothesis BRA company that manufactures car tires wants to compare breaking performance on dry and wet pavements for a brand of their tires. They selected a random sample of 10 sets of tires and put them on 10 cars. The stopping distance (ft) on dry pavement and wet pavement was recoded for each car. The results are summarized in the table below. Car 2. 4 8 9. 10 Dry 152 148 135 130 134 133 128 136 136 157 Wet 202 220 194 146 182 172 201 180 192 204 Do the data provide enough evidence to conclude that the average breaking performance is lower on wet naYement for this tire brand? Use the rejection point method. Use a 0.05.The following are 30 UAS scores for the UT Statistics Student PPD Course. 75 89 47 80 65 59 60 75 84 61 63 78 92 85 79 56 64 90 Present the data in graphical form as follows. a. Make a Boxplot diagram b. Make a Histogram 55 79 55 78 64 68 90 50 70 59 56 84
- The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in eleven metropolitan areas across the upper Midwest region (OhioGasPrices.com website, March 18, 2012). Click on the datafile logo to reference the data. DATA file Shell BP Metropolitan Area Marathon Akron, Ohio Cincinnati, Ohio Cleveland, Ohio Columbus, Ohio Ft. Wayne, Indiana Indianapolis, Indiana Lansing, Michigan Lexington, Kentucky Louisville, Kentucky Muncie, Indiana Toledo, Ohio 3.77 3.72 3.87 3.76 3.78 3.87 3.89 3.79 3.83 3.83 3.85 3.77 3.83 3.85 3.93 3.84 3.84 4.04 3.87 3.87 3.99 3.79 3.78 3.81 3.69 3.78 3.84 3.84 3.83 3.79 3.79 3.86 3.86 Use a = .05 to test for any significant difference in the mean price of gasoline for the three brands. Round SS to 6 decimals, MS to 6 decimals, F to 2…A large group of workers is divided into three departments: those who work in special operations, those who work on the main floor, and those who work in management. Strep throat has been going around and a health inspector would like to know if there is a relationship between department and having strep throat. She selects a random sample of 100 workers and classifies each one according to their department and whether they have strep throat. The data are displayed in the table. The health inspector would like to know if these data provide convincing evidence that the distribution of strep throat status differs across the departments in the population of all workers of this large company. What is the appropriate inference procedure? chi-square test for goodness of fit because the data come from one random sample chi-square test for homogeneity because the data come from independent random samples chi-square test for association/independence because the data come from one random…The accompanying data on seat belt use for each of the 50 U.S. states and the District of Columbia are from a nationwide survey. The observations represent the percentage of drivers wearing seat belts in a large nationwide observational survey. 6H 7L 7H 8L stem leaf 8H 95.6 9L 9H 88.5 87.3 80.3 94.2 90.3 92.9 87.9 74.3 97.0 82.5 85.0 92.0 93.3 88.7 97.2 93.4 78.2 78.7 73.9 70.0 94.1 70.3 85.8 86.0 84.6 79.3 86.2 97.7 83.7 87.5 90.0 69.0 87.6 84.2 84.9 (a) The values in the data set range from 69.0% to 97.7%. Construct a stem-and-leaf display that uses repeated stems 6H, 7L, 7H, 9H. (Enter numbers fro smallest to largest separated by spaces. Enter NONE for stems with no values. Hint: See Example 3.10.) 87.5 92.2 76.7 93.2 94.8 92.0 90.7 90.7 80.9 90.8 84.9 83.5 84.0 77.2 94.6
- The National Football League (NFL) records a variety of performance data for individuals and teams. To investigate the importance of passing on the percentage of games won by a team, the following data show the average number of passing yards per attempt (Yards/Attempt) and the percentage of games won (WinPct) for a random sample of 10 NFL teams for the 2011 season.† Team Yards/Attempt WinPct Arizona Cardinals 6.5 50 Atlanta Falcons 7.1 63 Carolina Panthers 7.4 38 Chicago Bears 6.4 50 Dallas Cowboys 7.4 50 New England Patriots 8.3 81 Philadelphia Eagles 7.4 50 Seattle Seahawks 6.1 44 St. Louis Rams 5.2 13 Tampa Bay Buccaneers 6.2 25 (a) Develop a scatter diagram with the number of passing yards per attempt on the horizontal axis and the percentage of games won on the vertical axis. A scatter diagram has 9 points plotted on it. The horizontal axis ranges from 5 to 9 and is labeled: Yards/Attempt. The vertical axis ranges from 0 to 90 and is labeled: Win %.…I need help on # 3, and 4 pleaseA researcher would like to know whether there is a consistent, predictable relationship between ACT scores and GPA for high school students. A sample of 100 students is obtained from students who took the ACT in their Junior year. Based on the test results and gpa scores, students are classified as high or low for ACT and for GPA. The results are summarized in the following frequency distribution: ACT Score High GPA Low GPA High 39 15 Low 21 25 Based on the data, is there a significant relationship between ACT scores and GPA (a = .05). Compute the appropriate measure of association.
- The arm span and foot length were measured (in centimeters) for each of the 19 students in a statistics class and displayed in the scatterplot. An analysis was completed and the computer output is shown. Using the computer output, what is the predicted foot length for a student with an arm span of 160 cm? 5.79 cm 22.15 cm 29.76 cm Arm Span vs. Foot Length 29.80 cm 29 27 19 155 160 165 170 175 180 185 190 195 Foot Length (cm) 21Let x be the percentage of 16- to 19-year-olds not in school and not high school graduates. Let y be the reported violent crimes per 1000 residents. Six small cities in Arkansas (Blytheville, El Dorado, Hot Springs, Jonesboro, Rogers, and Russellville) reported the following information about x and y. x 24.2 18.6 17.8 14.9 19.0 17.5 y 13.0 4.6 8.8 1.3 0.8 3.6 Complete parts (a) through (e), given Σx = 112, Σy = 32.1, Σx2 = 2137.7, Σy2 = 282.89, Σxy = 654.37, and r ≈ 0.763. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σxy = r = (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x = y = = + x12. A student took a random sample of 10 students enrolled in an accounting class last semester, asking each to report the total amount of time spent studying for the course and the grade that the student received. The data is listed below: Study Time Grade 40 77 42 63 37 79 47 86 25 51 44 78 41 83 90 48 35 65 28 47 a. Calculate the covariance. b. Calculate the coefficient of correlation. x C. Calculate the coefficient of determination. Kd. Determine the least squares line. What do the statistics calculated above tell you about the relationship between the marks and study time? е.