Refer Excel Output and answer the following questions. 1. Determine whether there is a significant relationship between dependent variable and the two independent variables at the 0.05 level of significance. 2. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. (use critical value T stat Approach)
Q: A multiple regression analysis based on 20 data points yielded the following fitted mode. Y = 3 +…
A: Here dummy variable is X2 which defines gender of the student, 0 for male and 1for female. Here…
Q: A researcher interested in explaining the income levels of St. Lucian workers, developed the…
A: From the given information, γ is the coefficient of the variable 'EXP'. The t-ratio for the variable…
Q: When survey data indicated that a company needed to improve its package-sealing process, an…
A: Scatter plot for Bag,Plate gap (X) & Tear rating (Y)
Q: il T-Mobile 11:42 am 48% Home Edit Yesterday 5:52 pm Canvas 因 国 Part of an Excel regression output…
A:
Q: An accounting firm, in an effort to explain variation in client profitability, collected the data…
A: Solution: Based on the given data, we are asked to regress the dependent variable - Profitability on…
Q: A marine biologist has been monitoring the salmon population in a local river. He records the…
A: Given Month salmon 1 18 5 56 6 70 10 106 18 215 20 240 28 452
Q: Suppose that researchers obtain a random sample of adults ages 18 – 40 and collect data on the…
A:
Q: By visual inspection, determine the best-fitting regression model for the scatterplot. y
A:
Q: Friesen and Shine (2019) wanted to determine whether male Australian cane toads have different…
A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: Given information: Weekly Usage Expense 18 21 15 26 25 34 33 41 37 51 22 35 29 37…
Q: Select the answer that fits each description. Study to investigate whether more students with hazel…
A: Given info: Study to investigate whether more students with hazel eyes major in biology than…
Q: consider the following sample of production volumes and total cost data for manuracturing operation.…
A: The null hypothesis in simple linear regression is that the slope is zero and the alternate…
Q: A study on the amount of rainfall and the quantity of air pollution removed gave the following of…
A: Given Data : X = Rainfall Y = Particulate removed 4.2 128 2.4 123 5.8 118 5.5 120 6 116…
Q: The spotted lanternfly, Lycorma delicatula, is an invasive species to the United States that has the…
A: Given that Length of insect: AVG = 1 inch, SD = 0.15 inchNumber of eggs: AVG = 40 eggs, SD = 5 eggsr…
Q: Which one of the following cost estimation methods is the most accurate? Select one: a. The high-low…
A: The range of values of cost estimation and the probability of occurrence of actual cost between two…
Q: The owner of Showtime Movie Theaters, Inc. would like to predict weekly gross revenue as a function…
A: To find regression line using R software: 1. Enter the data of x and y variables. 2. Use command…
Q: In exercise 1, the following estimated regression equation based on 10 observations was presented.…
A: The following estimated regression equation based on 10 observations was presented.…
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…
Q: The owner of Showtime Movie Theaters, Inc., would like to predict weekly gross revenue as a function…
A: Using excel data analysis >regression, we get: answer(a) Revenue = 90.10 + 1.29 TVAdv
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: Given information a) Dependent variable = Yearly foreign reserves FR Independent variable = Annual…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: The given information is about the regression analysis of the yearly foreign reserves.
Q: Two researchers, Mamelodi and Phatane report the results of an investigation into the factors…
A: The regression is a method of machine learning under subgroup Supervised Learning. The regression…
Q: The authors of the paper "Weight-Bearing Activity during Youth Is a More Important Factor for Peak…
A: We have instructed to use β1 and β2 for the coefficients of x1 and x2. and "α" for intercept…
Q: Mr. James, president of Daniel-James Financial Services, believes that there is a relationship…
A: Table: X Y X2 Y2 XY 14 24 196 576 336 12 14 144 196 168 20 28 400 784 560 16 30 256 900…
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: The data shows the weekly usage and annual maintenance expenses for machines.
Q: Jensen Tire &. Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…
Q: Run this Linear Regression Hypothesis Test to determine if there is a significant correlation…
A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…
Q: . To investigate whether accounting quality affects the firm value, the following regression…
A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…
Q: Suppose the following data were collected from a sample of 15 CEOS relating annual salary to years…
A: The independent variables are experience, service and industrial. The dependent variable is salary.…
Q: Consider the following data, i) Calculate and analyze the fitted regression line between the…
A: Here, x y x-x y-y (x-x)(y-y) (x-x)2 (y-y)2 10 2 2.8571 -5.4286 -15.5101 8.16302 29.4697 9 4…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: b) Fitted Regression line: FR hat=5491.38 + 85.39 * OIL -377.08 * EXP -396.99* FDI c) Missing value…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: B is the coefficient of OIL so we check the p-value of OIL. p-value= 0.0006 Which is less than…
Q: Suppose that researchers obtain a random sample of adults ages 18 – 40 and collect data on the…
A: Residual standard error: 1.719 on 85 degrees of freedomMultiple R-squared: 0.01983, Adjusted…
Q: Does a high value of r2 imply that two variables are causally related? Explain.
A:
Q: Refer to the Minitab display below, which is based on a sample of 54 bears. Identify the multiple…
A: The fitted regression equation is given as WEIGHT = - 253 - 0.85*HEADLEN + 0.64*LENGTH + 12.1*CHEST
Q: Answer the following questions using the SPSS regression analysis OUTPUT (given below): a. From the…
A: 3. a. From the SPSS output, the intercept is 76.960, and the slope is -4.495. The estimated…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: The problem is related to multiple regression model MINITAB output is available to answer the…
Q: If a scatterplot is created in excel, and a line of regression is fit along with a derived…
A: Scatterplot:A scatterplot is a graph of the paired (x, y) sample data with a horizontal x–axis and a…
Q: Suppose the following data were collected relating the selling price of a house to square footage…
A: Given information, Price Sqft Brick 241255 3392 0 184518 2038 1 176488 1906 0 240068…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A:
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: As per guidelines we will solve first question only, please repost other questions for more answers.…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: B is the coefficient of OIL, For OIL, Ho: B is Statistically significant. H1: B is not…
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…
Q: Jensen Tire & Auto is deciding whether to purchase a maintenance contract for its newcomputer…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: A study of emergency service facilities investigated the relationship between the number of…
A: Part 2 The scatter diagram can be obtained using excel as: Open the Excel sheet and enter the data…
Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…
A: Dear students as per guidelines we answer the first three subparts only. Solution We will use excel…
Q: A researcher interested in explaining the level of foreign reserves for the country of Barbados…
A: Given observation a) Dependent variable = Yearly foreign reserves FR Independent variable = Annual…
Q: The owner of Showtime Movie Theaters, Inc., would like to predict weekly gross revenue as a function…
A: Since you have asked multiple question, according to our guidelines we will solve the first question…
Refer Excel Output and answer the following questions.
1. Determine whether there is a significant relationship between dependent variable and the two independent variables at the 0.05 level of significance.
2. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. (use critical value T stat Approach)
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- Rates of return (annualized) in two investment portfolios are compared over the last 12 quarters. They are considered similar in safety, but portfolio B is advertised as being “less volatile.” (a) At α = .025, does the sample show that portfolio A has significantly greater variance in rates of return than portfolio B? (b) At α = .025, is there a significant difference in the means? Portfolio A Portfolio B 5.23 8.96 10.91 8.60 12.49 7.61 4.17 6.60 5.54 7.77 8.68 7.06 7.89 7.68 9.82 7.62 9.62 8.71 4.93 8.97 11.66 7.71 11.49 9.91 Questions: (a-1) Choose the appropriate hypotheses. Assume σA2 is the variance of the Portfolio A and σB2 is the variance of the Portfolio B. multiple choice 1 H0: σA2/σB2 ≤ 1 versus H1: σA2/σB2 > 1 - Correct Answer H0: σA2/σB2 = 1 versus H1: σA2/σB2 ≠ 1 H0: σA2/σB2 ≥ 1 versus H1: σA2/σB2 < 1 (a-2) Specify the decision rule. (Round your answers to 2 decimal places.) Reject the null hypothesis if Fcalc >…Rates of return (annualized) in two investment portfolios are compared over the last 12 quarters. They are considered similar in safety, but portfolio B is advertised as being “less volatile.” (a) At α = .025, does the sample show that portfolio A has significantly greater variance in rates of return than portfolio B? (b) At α = .025, is there a significant difference in the means? Portfolio A Portfolio B 5.23 8.96 10.91 8.60 12.49 7.61 4.17 6.60 5.54 7.77 8.68 7.06 7.89 7.68 9.82 7.62 9.62 8.71 4.93 8.97 11.66 7.71 11.49 9.91 (b-1) Choose the appropriate hypotheses. Assume d = company assessed value – employee assessed value. multiple choice 3 H0: μ1 – μ2 = 0 vs. H1: μ1 – μ2 ≠ 0 H0: μ1 – μ2 ≥ 0 vs. H1: μ1 – μ2 < 0 H0: μ1 – μ2 ≤ 0 vs. H1: μ1 – μ2 > 0 (b-2) State the decision rule for .01 level of significance. (Round your answers to 3 decimal places. A negative value should be indicated by a minus sign.) Reject the null…Rates of return (annualized) in two investment portfolios are compared over the last 12 quarters. They are considered similar in safety, but portfolio B is advertised as being “less volatile.” (a) At α = .025, does the sample show that portfolio A has significantly greater variance in rates of return than portfolio B? (b) At α = .025, is there a significant difference in the means? Portfolio A Portfolio B 5.23 8.96 10.91 8.60 12.49 7.61 4.17 6.60 5.54 7.77 8.68 7.06 7.89 7.68 9.82 7.62 9.62 8.71 4.93 8.97 11.66 7.71 11.49 9.91 (b-1) Choose the appropriate hypotheses. Assume d = company assessed value – employee assessed value. multiple choice 3 H0: μ1 – μ2 = 0 vs. H1: μ1 – μ2 ≠ 0 H0: μ1 – μ2 ≥ 0 vs. H1: μ1 – μ2 < 0 H0: μ1 – μ2 ≤ 0 vs. H1: μ1 – μ2 > 0 (b-2) State the decision rule for .01 level of significance. (Round your answers to 3 decimal places. A negative value should be indicated by a minus sign.) Reject the null…
- 3.Which model do you think is the “best” reduced model? Discuss why you choose this model. Analysis of Variance Table (Step back model) Response: rent Df Sum Sq Mean Sq F value Pr(>F) age 1 21000 21000 17.1136 0.0003079 *** sqft 1 35364 35364 28.8196 1.134e-05 *** sd 1 5961 5961 4.8576 0.0362339 * unts 1 8678 8678 7.0722 0.0130049 * gar 1 33364 33364 27.1899 1.713e-05 *** cp 1 7641 7641 6.2269 0.0189934 * Residuals 27 33131 1227 --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Step forward model: Response: rent Df Sum Sq Mean Sq F value Pr(>F) age 1 21000 21000 16.6255 0.000406 *** sqft 1 35364 35364 27.9976 1.757e-05 *** sd 1 5961 5961 4.7191 0.039517 * unts 1 8678 8678 6.8705 0.014697 * gar 1 33364 33364 26.4144 2.599e-05 *** cp 1 7641 7641 6.0493 0.021176 *…Analysis of Variance (ANOVA) Health professionals conducted a research study to examine whether people consumed more calories at a fast-food restaurant when the method of payment for their food differed. They hypothesized that people would order more food when they paid with a credit card or a gift certificate compared to cash. Test the null hypothesis that the number of calories consumed does not differ by method of payment. Write a concluding statement. Cash Credit Gift Certificate 1200 1350 1400 1050 1125 1250 700 1050 1000 1450 1680 1950 1365 1380 1400Characteristics Treatment Control P-value Mean SBP 115.3889± 113.0588±6.805 Mean difference (SBP) -0.66±3.0292 2.117 ±2.471 0.005347 Mean DBP 74.556± 7.366 72.4705±6.374 Mean difference (DBP) -1.888±2.9483 1.411765 ±3.3343 0.002233 Mean Pulse rate 96.222±13.0 88.94±15.43725 Mean difference -9.444± 0.5294118± 0.3529523 write an analysis for the data above and what does the p value mean?
- Data: Rate difference per 1000 PY: ___-2.17__; 95% CI __-4.30___ to _-0.03____ HR: __79___; 95% CI _0.63____ to _0.99____ Which statement is the most correct interpretation of the risk of pooled stroke or systemic emboli in the propensity-matched analysis? Apixaban resulted in a statistically significant decrease in stroke or systemic emboli compared to rivaroxaban Apixaban resulted in a statistically significant increase in stroke or systemic emboli compared to rivaroxaban There was no statistically significant difference in stroke or systemic emboli between apixaban and rivaroxaban.A Cox proportional hazards model is estimated relating time to psychiatric hospitalization in patients with severe mental illness. The risk factors include age, sex, prior hospitalization for mental illness, and an indicator of bipolar disorder. The parameter estimates and significance levels for the model are shown here. Which of the predictors are statistically significantly associated with time to psychiatric hospitalization? Predictor Parameter Estimate p-value Age, years 0.0045 0.5647 Sex (0 = female, 1 = male) –0.4841 0.0341 Prior hospitalization (0 = no, 1 = yes) 0.3726 0.6178 Bipolar disorder (0 = no, 1 = yes) 0.7561 0.0042 .Predicting GPA based upon high school average is an example of. aclassification bvalue estimation ccausal modeling d
- Fuel economy A consumer organization has reported test data for 50 car models. We will examine the asso-ciation between the weight of the car (in thousands of pounds) and the fuel efficiency (in miles per gallon).Here are the scatterplot, summary statistics, andregression analysis:Variable Count Mean StdDevMPG 50 25.0200 4.83394wt/1000 50 2.88780 0.511656Dependent variable is: MPGR-squared = 75.6%s = 2.413 with 50 - 2 = 48 dfVariable Coefficient SE(Coeff) t-ratio P-valueIntercept 48.7393 1.976 24.7 ...0.0001Weight -8.21362 0.6738 -12.2 ...0.0001 a) Is there strong evidence of an association between the weight of a car and its gas mileage? Write an appropri-ate hypothesis. b) Are the assumptions for regression satisfied?c) Test your hypothesis and state your conclusion.Quantitative Research Statistical Data Analysis using Software ( SPSS / PLS - SEM ) 1 ) Study the provided videos on preparing and testing SPSS / PLS - SEM 2 ) Interpret the data which has been presented in the below Table 1 and Table 2Palisades Eco-Park is a small ecological reserve that admits a relatively small number of visitors on any day, but provides both educational and entertaining lectures, exhibitions, and opportunities to observe nature. The company has collected the following data on labor costs and number of visitors to the park over the last 30 months. Month Labor Cost Visitors 1 $ 25,520 1,400 2 $ 35,869 2,135 3 $ 39,504 2,315 4 $ 31,280 1,830 5 $ 34,405 1,954 6 $ 32,293 1,796 7 $ 31,651 1,816 8 $ 37,889 2,204 9 $ 38,120 2,273 10 $ 46,387 2,941 11 $ 41,667 2,451 12 $ 38,576 2,309 13 $ 34,044 1,989 14 $ 32,788 1,924 15 $ 36,542 2,065 16 $ 26,192 1,729 17 $ 30,307 2,797 18 $ 29,613 2,294 19 $ 27,270 1,986 20 $ 29,654 2,448 21 $ 25,394 1,647 22 $ 24,369 1,478 23 $ 28,556 2,690 24 $ 29,803 3,144 25 $ 27,792 2,135 26 $ 31,322 2,696 27 $ 28,318 2,462 28 $ 29,579 2,512 29 $ 28,108 2,068 30 $ 27,550 1,709 Required: a. Estimate the labor…