Two random samples of 15 customers in diferent banks were selected and their wait times (in minutes) are given below Use these data to complete partsto (d) belowBank A3633.154.326 040.365 096386.13 O5 403 8596210 514173115744 155074722.328 085 52Bank B5928.165638 766.183918.266.77997a is there evidence of a difference in the vanablity of the wating time belween the two banks? (Use a0 10)Determine the hypotheses Choose the correct answer belowOA H o-OB H, of saOD. H of z0H, of -oCaculale the F test statstic(Round to two decimal places as needed)Determene the critical value(s) Select the comrect choice below and fil in the answer boxtes) to complete your choice(Round to two decimal places as needed)OA Since the altornative hypothesis is ee, the crtical value is Fuand FOB Since the allernative hypothess s ee the criical values are FOC. Snce the altemative hypothesis is ef es. the critical value

Given that The data of two random variable is given We have to apply the F test for the claim that…

Answered: Two random samples of 15 customers in…

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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Adela Noriegam, a researcher wants to determine how employee salaries at a certain company are related to the length of employment, previous experience, and education. The researcher selects eight employees from the company and obtains the following data: Employee Salary,y Employment (in yrs), x1 Employment (in yrs), x2 Employment (in yrs), x3 A 57310 10 2 16 B 57380 5 6 16 C 54135 4 1 12 D 56985 6 5 14 E 58715 8 8 16 F 60000 20 0 12 G 59400 9 4 18 H 60720 15 7 17 What is the regression equation? Leave your answer in 2 decimal places Y = ()+() +() +
Calculate the SS and the estimated SD (round to 2 decimal places)
4
SJS Travel Agency, a nation wide local travel agency, offers special rates on summer period. The owner wants additional information on the ages of those people taking travel tours. A random sample of 50 customers taking travel tours last summer revealed these ages. 18 29 37 42 47 49 53 57 61 67 19 31 38 44 48 50 54 58 62 68 24 34 39 45 48 51 54 58 63 70 27 36 39 46 48 51 55 59 64 74 28 36 40 46 49 52 56 60 66 77 C. Determine the D1, D2, D3, D4 of the frequency distribution and construct the graph.
Please answer the photo attached
2. The following are the numbers of minutes it took random samples of 8 men (group 1) and 5 women (group 2) to complete a written test given for the renewal of their driver's licences Men : 9.9, 7.4, 8.9, 9.1, 7.7,9.7, 11.8, 9.2 Women : 8.6, 10.9, 9.8, 10.7, 9.4 Use a nonparametric test to decide whether to accept the null hypothesis µ1 Hz against the alternative µ1 # µz at 0.05 level of significance.
Find the 7th decile
A statistics teacher asked two different students, Lexie and Jennifer, to go to Wegmans and sample 30 shoppers each. The population of interest for both people can be defined as, “People who shop at the Johnson City, NY Wegmans store”. Here is what each person did to collect their sample: Lexie: She stood outside at the entrance to the store on 3 different days and times and surveyed every 15th person to walk by her. She surveyed 10 people each time to get her 30. Jennifer: She went to Wegmans after her nursing shift first thing Wednesday morning to buy deodorant since she ran out. When she was in the pharmacy area she surveyed all the people around her and then, to get up to 30 surveys, she went to the health food section and surveyed everyone she was there. Identify at least 2 specific reasons why Lexie’s approach is more likely to give a representative sample. Consider sources of bias, or types of shoppers who might be excluded by Jennifer’s approach.…
The data to the right represent the number of chocolate chips per cookie in a random sample of a name brand and a store brand. Complete parts (a) to (c) below. Full data set D Name Brand Store Brand 20 23 26 24 28 19 21 27 33 28 33 15 29 22 25 17 22 21 22 30 20 26 23 24 25 27 ... (a) Draw side-by-side boxplots for each brand of cookie. Label the boxplots "N" for the name brand and "S" for the store brand. Choose the correct answer below. OA. OB. OC. N- N- N- 10 20 30 40 10 20 30 40 10 20 30 40 (b) Does there appear to be a difference in the number of chips per cookie? O A. Yes. The store brand appears to have more chips per cookie. O B. No. There appears to be no difference in the number of chips per cookie. O C. Yes. The name brand appears to have more chips per cookie. O D. There is insufficient information to draw a conclusion. (c) Does one brand have a more consistent number of chips per cookie? O A. No. Both brands have roughly the same number of chips per cookie. O B. Yes. The…
Please help with 1,2,3
The Global Business Travel Association reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. Do not round intermediate calculations. Current Year Previous Year Current Year Previous Year 468 231 285 216 342 282 699 498 552 360 675 255 252 192 702 222 396 375 477 381 234 174 621 357 What is the p-value? p-value (to 3 decimals) Degrees of freedom b. What is the sample mean domestic airfare for business travel for each year? Current Year $ (to 2 decimals) Previous Year $ (to 2 decimals) c. What is the percentage change in the airfare for the one-year period? % (to 2 decimals)
To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained. Machine1 Machine2 Machine3 Machine4 6.7 8.7 11.1 9.8 8.0 7.5 10.3 12.9 5.4 9.5 9.6 12.1 7.6 10.1 10.2 10.9 8.6 9.2 9.0 11.3 7.5 9.6 8.6 11.4 Use the Bonferroni adjustment to test for a significant difference between all pairs of means. Assume that a maximum overall experimentwise error rate of 0.05 is desired. Find the value of LSD. (Round your comparisonwise error rate to three decimal places. Round your answer to two decimal places.) LSD = Find the pairwise absolute difference between sample means for each pair of machines. x1 − x2= x1 − x3= x1 − x4= x2 − x3= x2 − x4= x3 − x4= Which treatment means differ significantly? (Select all that apply.) There is a significant difference between the means for Machine 1 and Machine 2.There is a significant difference between the means for Machine 1 and Machine 3.There is a significant…

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