One-Way Analysis of Variance (Show solutions manually):Problem given: (Include interpretations)The response time in milliseconds was determined for three different types of circuits in anscientific calculator. The results are as follows:Circuit TypeResponse119222018252202133274031615182617Required:a.) Using alpharesponse time.0.01, test the hypothesis that the three circuit types have the sameb.) Construct a residuals table for the circuit typesc.) Find a 95% confidence interval or 100 (1 – 0.05) %, on the response time for circuit #3.

Given Data : Circuit Type 1 Circuit Type 2 Circuit Type 3 19 20 16 22 21 15 20 33…

Answered: The response time in milliseconds was…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The data below are stress-test scores from 6 nurses from the Emergency Care (EC) unit and 6 nurses from the Long Term (LT) care unit who were randomly selected for the study. The investigator wants to test, at the 5% level, whether there is a difference in stress test scores in the EC group and the LT group. EC LT 5 2 9 3 8 5 10 6 7 4 6 2 State the hypotheses. What statistical test should be used to determine if there is a difference in stress scores between EC and LT nurses? Determine the appropriate critical value and set up the decision rule. Compute the test statistic. Interpret your results. Give your conclusion.
Two different simple random samples are drawn from two different populations. The first sample consists of 40 people with 20 having a common attribute. The second sample consists of 2200 people with 1573 of them having the same common attribute. Compare the results from a hypothesis test of p₁ = P2 (with a 0.05 significance level) and a 95% confidence interval estimate of P1-P2. his OA. Ho: P12P2 H₁: P₁ #P₂ 2 View an example W S D. Ho: P1 P2 H₁: P1 #P2 X Identify the test statistic. - 2.97 (Round to two decimal places as needed.) Identify the critical value(s). H mand 80 P $ DEBEL 4 (34336 (Round to three decimal places as needed. Use a comma to separate answers as needed.) # 3 E D Get more help с NOV 20 R ▲ F V % 5 T G #tv B Ho: P1 P2 H₁: P₁ P2 E. Ho: P1 SP2 H₁: P₁ P2 Y MacBook Air H 2 & 7 N U CALDE J * 00 8 M O FO K ( 9 O V. H DG Ho: P₁ P2 H₁: P1 P2 L OF Ho: P1 H₁: P1 zoom command P P2 P2 Clear all alt F11 { option [ + 11 ? Final check } 1 delete enter return sk
is a simple random sample. 1) Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entering entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on program versus their current GPAs. the Entering GPA 3.5 3.8 3.6 3.6 3.5 3.9 4.0 3.9 3.5 3.7 Current GPA 3.6 3.7 3.9 3.6 3.9 3.8 3.7 3.9 3.8 4.0
Pain after surgery: In a random sample of 42 patients undergoing a standard surgical procedure, 15 required medication for postoperative pain. In a random sample of 90 patients undergoing a new procedure, only 11 required pain medication. Part: 0 / 2 Part 1 of 2 (a) Construct a 95% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures. Let p, denote the proportion of patients who had the old procedure needing pain medication. Use tables to find the critical value and 1 round the answer to at least three decimal places. A 95% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures is
D. Reject Ha B. Reject Ho For #22 - #27: The following are measurements of the heat-producing capacity (in millions of calories per ton) of random samples of five specimens each of coal from two mines: Mine 1: 8380 8210 8360 7840 7910 Mine 2: 7540 7720 7750 8100 7690 Below are the EXCEL outputs of the data at 95% confidence level: t-Test: Paired Two Sample for Means t-Test: Two-Sample Assuming Equal Vari MINE 1 MINE 2 MINE 1 MINE 2 7760 Mean Variance Mean 8140 7760 8140 63450 42650 63450 42650 w. Variance Observations 5 5 Observations 5 5 Pearson Correlation -0.69059 Pooled Variance 53050 Hypothesized Mea Hypothesized Mear df 0. 4 df 8 t Stat 2.014279 t Stat 2.608621 P(T<=t) one-tail t Critical one-tail 0.015599 P(T<=t) one-tail t Critical one-tail 0.05712 2.131847 1.859548 P(T<=t) two-tail t Critical two-tail 0.031197 P(T<=t) two-tail t Critical two-tail 0.11424 A. 2.776445 2.306004 22. Which of the two excel output above is the correct result of the data. A. Choice A B. Choice B C.…
The members of the band Metallica, always anxious to capitalize on their success, have started a new credit card company : Metallicard. It issues cards whose grade depends on your credit reliability score, which is determined by members of the band. FICO, the company behind typical credit scores, is performing a study to analyze Metallicard's customers. They sampled 150 Metallicard members, obtaining the following data: Grade Reliability Score Frequency Platinum 157-181 18 Gold 132 - 156 22 Silver 107 - 131 34 Bronze 82 - 106 35 Lead 57 81 41 Use this information to select the response which, when placed into the blank, makes a correct sentence. The cumulative frequency of "Bronze" grading in the above Frequency Distribution is O 35 15.2 O 76 O 109
Assume that both populations are normally distributed. a) Test whether . Population 1 Population 2 10 11.1 Pt2 at the a= 0.05 level of significance for the given sample data 10 9.8 2.3 (b) Construct a 95% confidence interval about u, - H3. 2.7 H1 H1 > H2 O C. Ho H1-H2 H1 H1> H2 D. Ho H1=H2 %3D Detemine the P-value for this hypothesis test. P = (Round to three decimal places as needed.) %24
Month No. of Advertisements Amt of sales 1 20 61000 2 24 77000 3 30 72000 4 23 66000 5 27 85000 6 25 77000 7 32 90000 8 35 10000 9 21 63000 10 34 97000 11 26 83000 12 29 70000 a) show above data on a scatter plot and include regression line. b) calculate the regression equation and a r-squared c) construct a 95% confidence interval for question b.
Given two dependent random samples with the following results: Population 1 43 32 39 39 44 47 37 Population 2 34 19 36 29 46 35 41 Use this data to find the 90 % confidence interval for the true difference between the population means. Let d = (Population 1 entry)-(Population 2 entry). Assume that both populations are normally distributed. Copy Data Step 1 of 4: Find the mean of the paired differences, d. Round your answer to one decimal place.
1) A researcher was interested in comparing the salaries of female and male employees at a particular company. Simple random samples of 8 female employees and 15 male employees yielded the following weekly salaries (in dollars). Female Male 595 722 518 760 562 904 556 880 1150 904 520 1205 520 500 480 915 1250 970 743 750 605 660 1640 Determine a 98% confidence interval for the difference, μ₁ - μ2, between the mean weekly salaries of female employees and the mean weekly salaries of male employees at this particular company. Normal probability plots of weekly salaries of female and male indicate normal populations.
You may need to use the appropriate appendix table or technology to answer this question. Recall the method used to obtain a confidence interval for the difference between two population means for matched samples. (a) The following data are from matched samples taken from two populations. Compute the difference value for each element. (Use Population 1 - Population 2.) Population Element 1 Difference 1 11 8 7 8 3 9 6 4 12 13 10 6 15 15 15 14 (b) Compute d. (c) Compute the standard deviation s. (Round your answer to two decimal places.) (d) What is the point estimate of the difference between the two population means? (Use Population 1 - Population 2.) (e) Provide a 95% confidence interval for the difference between the two population means. (Use Population 1 - Population 2. Round your answers to two decimal places.) to
The members of the band Metallica, always anxious to capitalize on their success, have started a new credit card company : Metallicard. It issues cards whose grade depends on your credit reliability score, which is determined by members of the band. FICO, the company behind typical credit scores, is performing a study to analyze Metallicard's customers. They sampled 150 Metallicard members, obtaining the following data: Grade Reliability Score Frequency Platinum 157-181 18 Gold 132 - 156 22 Silver 107 - 131 34 Bronze 82 - 106 57 - 81 35 Lead 41 Use this information to select the response which, when placed into the blank, makes a correct sentence. One of the class boundaries in the above Frequency Distribution is O 91,5 O 156.5 O 25 O 107

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