Use the information provided below for the GRADES questions that follow. The final grades for three sections of STA2122 in Spring 2022 produced the following One-way Anova Excel output. We are interested in knowing if the grades are similar or not for these sections. We will conduct a One-way Anova F-test and use a 5% significance level. Anova: Single Factor SUMMARY Groups Count Sum Average. Variance A 41 3840.04 93.66 51.32 B 40 3625.19 90.63 92.77 44 4002.09 90.96 67.71 ANOVA Source of Variation SS df MS P-value Fcrit Between Groups 227.40 113.70 1.62 0.20 3.07 Within Groups 8582.54 122 70.35 Total 8809.94 124 02022 Radha Bose Florida State University Department of Statistics GRADES 2 For the following questions, just enter a number in each blank, without units. Do not round any numbers unless asked to do So. - The output contains two estimates of the common population variance. Which of the two estimates is based on the sample means? 227.40 Which of the two estimates is based on the sample variances? 8582.54 - What was the standard deviation of the grades in section A, to two decimal places? 7.16 What was the variance of the grades in section B? 92.77 - What was the total grade for section C? 4002.09

Use the information provided below for the GRADES questions that follow. The final grades for three sections of STA2122 in Spring 2022 produced the following One-way Anova Excel output. We are interested in knowing if the grades are similar or not for these sections. We will conduct a One-way Anova F-test and use a 5% significance level. Anova: Single Factor SUMMARY Groups Count Sum Average. Variance A 41 3840.04 93.66 51.32 B 40 3625.19 90.63 92.77 44 4002.09 90.96 67.71 ANOVA Source of Variation SS df MS P-value Fcrit Between Groups 227.40 113.70 1.62 0.20 3.07 Within Groups 8582.54 122 70.35 Total 8809.94 124 02022 Radha Bose Florida State University Department of Statistics GRADES 2 For the following questions, just enter a number in each blank, without units. Do not round any numbers unless asked to do So. - The output contains two estimates of the common population variance. Which of the two estimates is based on the sample means? 227.40 Which of the two estimates is based on the sample variances? 8582.54 - What was the standard deviation of the grades in section A, to two decimal places? 7.16 What was the variance of the grades in section B? 92.77 - What was the total grade for section C? 4002.09

Essentials of Business Analytics (MindTap Course List)

2nd Edition

ISBN:9781305627734

Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Chapter6: Statistical Inference

Section: Chapter Questions

Problem 6P: In this chapter we showed how a simple random sample of 30 EAI employees can be used to develop...

See similar textbooks

Similar questions

Given the following historical returns, what is the variance? Year 1 = 9%; year 2 = -11%; year 3 = 8%; year 4 = -12%; and year 5 = -9%. the correct answer is .0112. How was that found? Please do not answer in excel format
Please include excel formula Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Input area: Year X Y 1 13% 27% 2 26% 36% 3 7% 11% 4 -5% -29% 5 11% 16% (Use cells A6 to C11 from the given information to complete this question. You must use the built-in Excel function to answers this question. Make sure to use the “sample” Excel formulas.) Output area: Asset X: Average return Variance Standard deviation Asset Y: Average return Variance Standard deviation
Assume that Dylan Lee found two deviations in a sample of 90 transactions. Using AICPAsample evaluation tables, Lee determined that the ULRD at a 5 percent risk of overrelianceisa. 2.0 percent.b. 2.2 percent.c. 5.9 percent.d. 6.9 percent
b. Convert the Data available into a Table and choose a Design of your choice.c. Obtain the Mean, Median, Standard Deviation, Variance, Quartiles (Q1, Q2, Q3, Q4), IQRfor the entire data (1895-1998), using ONLY Excel Functions (not using the Analysis ToolPak Add-In)d. Use the Statistical measurements generated from the Analysis Toolpak (Add-In) andcompare the values obtained in (c). Comment on your findings.
Read the t statistic from the table of t distributions and circle the correct answer. A two-tailed test, a sample of 40 at a .01 level of significance; t = choice a,b,c,d as followed 2.708 1.328 1.96 2.567
instructure.com/courses/1649755/assignments/8791881 Q Search ! 1 4. Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Q A N Year 1 2 3 4 5 @ 2 a. Calculate the average return for X. b. Calculate the average return for Y. c. Calculate the variance for X. d. Calculate the variance for Y. e. Calculate the standard deviation for X. f. Calculate the standard deviation for Y. W S X Returns Alt X 13% 31 20 -21 22 # 3 E D F3 Y 24% 45 -11 -25 53 C $ 4 R F4 F V DII % 5 FS T G * A 6 B F6 Y H * F7 & 7 N U A PrtScn J FB * 8 JO Home M K F9 ( 9 End O F10 ) L 0 PgUPF11 P Alt .... PgDn F12 ? x { :[ B ( } 9:41 AM 11/27/2023 Ins A Del Backsp
Use the following returns for X and Y. Year 12345 Returns X 21.6% -16.6 9.6 19.2 4.6 Y 25.8% -3.6 27.8 -14.2 31.8 a. Calculate the average returns for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. a. Average return b. Variance c. Standard deviation b. Calculate the variances for X and Y. Note: Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616. c. Calculate the standard deviations for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. X % % % %
In a simple linear regression based on 20 observations, it is found b1 = 3.05 and se(b1) = 1.30. Consider the hypothesis : H0 : β1 = 0 and HA : β1 ≠ 0 . Calculate the value of the test statistic.
Given the following historical returns, what is the variance? Year 1 = 9%; year 2 = -11%; year 3 = 8%; year 4 = -12%; and year 5 = -9%. the correct answer is .0112. How was that found?
A simple regression model for 10 pair of data resulted in a standard error of 3.95 (i.e., Se = 3.95), and the. The sum of squares of error (SSE) is ______. Group of answer choices 187.23 171.63 156.03 140.42 124.82
A professor wants to investigate the relationship between the grades students obtain in their midterm exam (X) and the grades they obtain (Y) in the final exam. The professor collects data from 60 randomly chosen students. The estimated OLS regression is Ý = 45 +0.85X, where Y, denotes the predicted value of the grades obtained in the final exam by the " individual and X, denotes the grades obtained in the midterm exam. From the sample data he makes the following calculations: 60 3230 48, j= 1 60 3D1 ^2 where u, is the square of the residual for the " observation. He wants to test whether the grades obtained in the midterm exam have any effect on the grades obtained in the final exam or not. Which of the following are the null and the alternative hypotheses of the test the professor wishes to conduct? OA. Ho B1=0 vs. H B1 #0. Ho: B1=0 vs. H B, #0. O B. Ho B=D0.85 vs. H, B,#0.85. C. Ho BA #0 vs. HA B.=0. Click to select your answer(s). DAL Type here to search II
Determine the Sample size in the AHMED Company according to the following data: Book value of population tested = 500000 $ The Reliability factor for the specified risk of incorrect acceptance= 3 Tolerable misstatement = 40000 $ Anticipated misstatement= 4000 $ Expansion factor for anticipated misstatement = 1.5