Find the value of the test statistic. (Round your answer to two decimal places.)Find the p-value. (Round your answer to three decimal places.)p-valueState your conclusion.Do not reject Ho. There is sufficient evidence to conclude that the mean time between breakdowns is not the same for the four machines.Do not reject Ho. There is not sufficient evidence to conclude that the mean time between breakdowns is not the same for the fourmachines.=Reject Ho. There is not sufficient evidence to conclude that the mean time between breakdowns is not the same for the four machines.Reject HoThere is sufficient evidence to conclude that the mean time between breakdowns is not the same for the four machines.(b) Use Fisher's LSD procedure to test for the equality of the means for machines 2 and 4. Use a 0.05 level of significance.Find the value of LSD. (Round your answer to two decimal places.)LSD =Find the pairwise absolute difference between sample means for machines 2 and 4.72 - 74What conclusion can you draw after carrying out this test?There is a significant difference between the means for machines 2 and 4.There is not a significant difference between the means for machines 2 and 4. To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained.Machine Machine216.47.95.37.68.47.68.67.3Ha: M₁ M₂#9.410.29.39.8Ho: M₁ = M₂ = M3 = μ4M3 ‡ M4#Ho: M₁ M₂#M3 ‡ M4На: M1 = M2 = M3=МаMachine310.8Ho: M₁ = M₂ = M3 = M4Ha:10.19.510.28.98.7Machine49.712.812.1(a) At the α = 0.05 level of significance, what is the difference, if any, in the population mean times among the four machines?State the null and alternative hypotheses.10.711.111.4Ho:At least two of the population means are equal.H₂: At least two of the population means are different.Not all the population means are equal.Ho: Not all the population means are equal.На: M1 = M2 = M3 = M4

Answered: Image /qna-images/answer/f7a5bfd9-48aa-4dbd-83cb-aa46caa3233c.jpg

Answered: To test for any significant difference…

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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40 30 20 10 0 00 : 00000 -1.00 00000 -0.75 3. A statistics student seeking part-time employment as a New York City cab driver is trying to decide between driving a yellow cab or a green cab and examines tip amounts to help in making the decision. Using data from the New York City Taxi & Limousine Commission (http:// www.nyc.gov/html/tlc/html/about/trip_record_data.shtml), the stu- dent examines tip amounts from 25 randomly selected green cab fares and tip amounts from 25 randomly selected yellow cab fares. Graphs and summary statistics of the sample data from green cabs (G) and yellow cabs (Y) are shown. Green Cab ooooooooo000 Yellow Cab oooooooooooo 우1 -0.50 88.8. COCO 2 - 3 -0.25 4 5 Amount of Trip 0.go null = 0 Source: http://www.nyc.gov/html/tlc/html/about/trip_record_data.shtml Because each sample includes outliers, a two-sample t-test for H₁ a difference in means is not appropriate to test the hypotheses: Ho: MG My = 0, Ha:MG My # 0. The student simulates a distri- µy bution of…
4.- For the following data set 10, 7, 6, k, 4, 7, 1, 10. Find the value of k so that (a) X = 6.25 (b) X = 7.5 Villalobos 2020 22 (c) M = 7 (d) MR = 10 CHAPTER 3. DATA DESCRIPTION
15. Research results suggest that IQ scores for boys Plomin, 2006). A typical study looking at 10-year-old are more variable than IQ scores for girls (Arden & size would be reported in a journal article. children classifies participants by gender and by low. average, or high IQ. Following are representing the research results. Do the data indicate a significant difference between the frequency distri- butions for males and females? Test at the .05 level of significance and describe the difference. hypothetical data 1 IQ Low Average High Вoys 18 42 20 80 Girls 12 54 14 80 n = 160 Int Ava
12. x: 471.7 659.3 740.5 790.5 781.3 1047.3 969.5 1206.1 y: 446.3 680.2 725.2 765.3 740.4 1005.6 936.3 1156.8 Using the data find the y mean 219.60 833.28 205.42 807.01
10) The top point in the scatter plot (6.5, 1459) is for Washington, DC. Find the predicted DC violent crime rate if x=6.5. Then find the residual for DC using the predicted violence crime rate and the actual violent crime rate (the actual crime rate is provided in the first sentence of this question). Prediction = Actual y-value = Residual =
(5) A certain educational institute has 15 centers located at different places in a city. There are three telephone operators in each center. The manager wanted to estimate the average number of calls received per telephone per week for this institute. He decided to select four centers and the number of calls received on last week for each operator were recorded. The data collected are given in Table 02. Answer the following questions. Table 02: Number of calls received for each operator 25, 15, 30 18, 12, 10 20, 18, 22 15, 20, 18 Center 1 4 (i) (ii) What is the sampling method used in this study? Justify your answer. Estimate the average number of telephone calls received per telephone operator.
Compute E ry² for the following data. (52, 11), (43, 16), (48, 25), (46, -3), (54, 25), (35, -6), (39, 14), (52, 28), (36, 7), (41 22), (48, 15), (52,18), (44, 25) Type your answer.
Mr. James, president of Daniel-James Financial Services, believes that there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, he gathered the following information from a sample of clients for the last month. Let X represent the number of times that the client was contacted and Y represent the valye of sales ($1000) for each client sampled. Number of Contacts (X) Sales ($1000) 14 24 12 14 20 28 16 30 23 30 b) compute the correlation coefficient and coeffcient of determination. Interpret the coefficients.
3. Eight different aged patients are tested on their sugar levels in a laboratory to know whether there is any relationship between the age and blood sugar level. Using appropriate method, analyze the following data and give your comments on the same. Patients 10 15 20 25 30 35 40 45 Blood- 70 85 110 180 125 100 180 120 Sugar level
Give the statistical meaning of the relationship between the spending hours on using mobile andreading books per day
4. The following table summarises data collected in a survey of owners of small trucks. Most owners reported their distances travelled annually. Determine the measures of central tendency for the annual distance. Mean = Median = Mode = Distance Travelled Annually (in 1000 km) 5-7 7-9 9-11 11-13 13-15 Number of Trucks 5 10 12 20 20
12. The following dotplot shows the results from a previous class. The average word 1 is the Average Word length when students selected their own words and Average Word 2 is when the words were randomly selected. Variable 7 Average Word-2800 88..... Average Word-1- The population mean for word length is 4.3 letters. Comment on results from both graphs and the ability to predict the population mean from a sample. Your answer should be a college level paragraph that consists of a topic sentence, supporting sentences and a concluding sentence.

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