Jim's Outfitters, Inc., makes custom westem shirts. The shirts could be flawed in various ways,including flaws in the weave or color of the fabric, loose buttons or decorations, wrong dimensions,and uneven stitches. Jim randomly examined 10 shirts, with the following results shown to the right.a. Assuming that 10 observations are adequate for these purposes, determine the three-sigma control limits for defects per shirt.The UCL, equals and the LCL, equalsShirt12345678910Defects81610793654(Enter your responses rounded to two decimal places. If your answer for LCL is negative, enter this value as 0.)

Answered: Jim's Outfitters, Inc., makes custom…

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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1. Sample data about the listing price of a house is collected from Surrey, Guilford area in 2022 and the data is given below. Using the data answer the following questions: N 1 2 3 4 5 Listing Price 1049900 11 1229000 1049900 12 1230000 1050000 13 1075000 14 1298999 1299000 1299000 1075000 15 16 1398000 1078800 1179000 17 18 1398000 1399000 1188000 1188000 19 1449900 1225000 20 1450000 a. What is the mean listing price of a home? b. Generate appropriate numerical summaries for the listing price of a home, the sample standard deviation, etc. 6 7 8 9 10 Listing Price N Listing Price 21 1450000 22 1450000 23 1469900 24 1475000 25 1475000 26 1480000 1499000 27 28 1499000 29 1499233 30 1499900 N C. Use these summaries to develop a 95% confidence interval to estimate the mean listing price of a house in your selected city. That is, you will be using the sampling data you collected to estimate the population parameter (listing price). Make sure to show both your calculations and a final…
.Pick the Test (Z-test, Single Sample T-test, Independent Sample T-test, Paired Sample Ttest, ANOVA): Suppose that two brands of gasoline were being compared for mileage. Samples of each brand were used in identical cars under identical conditions. Nine tests were made of Brand I and six tests of Brand II. Are the two brands significantly different? Test:
a) Interpret the coefficient on pfmeals in Model 2 (mathematically and statistically). b) is the coefficient on pfmeals in Model 1 biased compared to the coefficient on pfmeals in Model 2. If so, by how much? c) What 2 conditions would need to be true for bias of pfmeals to exist? Use only the information from Models 1 and 2 above to answer this question.
٩.In a chi square goodness of fit test, a variable has 6 categories, and the sample size is 16. Calculate the degrees of freedom.
These questions are together
1.Are the individuals and their environment controlled in an observational study? A.Yes B,No C.Partially D.Cannot say
Calculate the median of the following distribution. Annual Sales Frequency Annual Sales Frequency 000) Less than 10 '000) Less than 40 4 55 20 20 50 62 30 35 60 67 Is it possible to calculate the arithmetic mean ? If possible, calculate it. Hence obtain an estimate of mode.
The data below gives the lengths in millimeters of three varieties of the tropical flower Heliconia, which are fertilized by different species of hummingbird on the island of Dominica. Perform an Anova test to compare the means lengths of the flowers for the three species. H. bihai H. caribaea red H. caribaea yellow 46.8 37.8 34.5 46.4 37.4 35.7 46.9 38 35 47.4 38.9 36.5 48.4 38 36.7 48 41.5 36 50.2 41.9 37 i. State the null and alternative hypothesis j. Give the p-value k. Give a conclusion for the hypothesis test
An experiment was performed to compare the lumen measurements obtained by four pho- tometry labs. A collection of six lamps was prepared and circulated to each of the labs. Each lab measured each lamp twice and measurements were made in completely random order. Analyze the data and interpret the results. Construct an appropriate error statement for this data set. Lab A B C D #71522 2409, 2494 2465, 2693 2499, 2365 2556, 2498 #71533 4477, 4182 4485, 4283 4131, 4076 4297, 4481 Lamp #71534 8861, 8739 9638, 9084 9272, 8904 9579, 8479 #71535 10213, 10281 #71536 20601, 22996 11138, 11560 10479, 10468 11151, 11015 23797, 23625 22106, 20773 20884, 22430 #71537 35985, 40224 42457, 41064 39140, 37987 39049, 37204
A class of students each took a sample of 25 reeses pieces. These are their results: Orange Yellow Brown 17 7 7 15 8 2 11 7 7 7 8 10 14 4 7 13 7 5 15 4 6 11 6 8 13 7 5 7 4 14 14 4 7 Take a guess concerning the population proportion of orange candies. Is this the same as the proportion of orange candies from your original sample? Why or why not? Your origional sample is: Orange Yellow Brown 13 7 5 j) Create a 95% confidence interval for the population proportion of orange candies.Point estimate: ? from the class data Critical z value: Standard error:Margin of Error: Lower Bound:Upper Bound:Interpretation:k) Did your guess in…
Mrs. Cunan introduced a Gallery Walk Technique in her Science class. He gave a pretest and posttest to her 20 students and gathered the following data: Student Pretest (x1) Posttest (x2) 1 10 15 2 30 35 3 15 25 4 15 25 5 20 20 6 10 20 7 18 22 8 14 20 9 15 20 10 20 15 11 18 30 12 15 10 13 15 16 14 20 25 15 18 15 16 40 45 17 10 15 18 10 10 19 12 18 20 20 25 At .05 level of significance, is the Gallery Walk Technique effective? Follow the steps in hypothesis testing. Answer the following. Problem # ________ What is the appropriate statistical test to use? _______________________________________ _____________________________________________________________________________ State Null Hypothesis: _________________________________________________________…
You do not need to perform the test just state the appropriate chi-square procedure and state the null and alternative hypotheses for the test.

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