CHECK YOUR UNDERSTANDING1. Identify the population, the parameter, the sample, and the statistic in this setting.2. Graph the population distribution.Mars, Inc. says that the mix of colors in its M&M'S® Milk ChocolateCandies from its Hackettstown, NJ, factory is 25% blue, 25% orange, 12.5%green, 12.5% yellow, 12.5% red, and 12.5% brown. Assume that thecompany's claim is true and that you will randomly select 50 candies toestimate the proportion that are orange.3. Imagine taking a random sample of 50 M&M'S® Milk Chocolate Candies. Makea graph showing a possible distribution of the sample data. Give the value of thestatistic for this sample.4. Which of these three graphs could be the approximate sampling distribution of thestatistic? Explain your choice.Frequency2018BlueGreenBrownOrangeRedYellow0.050.150.250.35p = sample proportion of orange candies0.450.050.15 0.20p = sample proportion of orange candies0.10ColorStarnes & Tabor, The Practice of Statistics, 6e, © 2018 Bedford, Freeman & orth High School Publishers0.25

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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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Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 7 2 34 38 3 0 7 4 60 58 5 20 54 6 61 61 7 40 27 8 7 7 9 14 7 10 94 100 11 1 0 12 67 58 13 78 67 14 21 54 Specimen Direct Stratified 15 34 27 16 0 0 17 38 38 18 18 14 19 94 94 20 1 14 21 40 47 22 21 21 23 0 0 24 7 14 25 14 40 26 18 14 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…
A college student is interested in whether presoaking time has an effect on cleanliness of clothing. He collects the dirty clothes from all of the people in his dorm and randomly assigns clothing to one of four presoak time conditions: 5 minutes, 10 minutes, 15 minutes, 20 minutes. He then asks members of another dorm to rate the cleanliness of the items (they don’t know which clothing got which soaking time). The data are presented below. C) Perform an LSD test and answer the questions that follow (SHOW ALL WORK!!! This can be on the same page as your other ANOVA hand work. Make sure it is inserted and/or uploaded): df error = tcrit (df error) MS error = s = LSD = _____________ Mean Comparisons: Mean5 min vs. Mean10 min = | ___ __ | = ___ ___ Greater than (>) LSD value? __ ___ Significant?__ ___ Mean10 min vs. Mean15 min = |__________________| = ______ Greater…
Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 6 2 32 38 3 0 6 4 60 58 5 20 52 6 61 61 7 40 26 8 6 6 9 12 6 10 92 100 11 1 0 12 66 58 13 78 66 14 21 52 Specimen Direct Stratified 15 32 26 16 0 0 17 38 38 18 18 12 19 92 92 20 1 12 21 40 46 22 21 21 23 0 0 24 6 12 25 12 40 26 18 12 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…
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Lucy is estimating the income level of households in a specific zip code. She randomly calls 100 households and collects information about their income levels. Which of the following is not true. 1. The average income level of all households in the zip code is a population parameter. 2. The total income of the surveyed households is a sample statistic. 3. The average income of the surveyed households is a sample data. 4. The surveyed households are considered a sample of the overall population of households living in the zip code.
Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Direct 21 33 0 60 20 61 40 8 13 93 1 68 77 21 Stratified 8 37 8 57 53 61 28 8 8 100 0 57 68 53 Specimen 15 Find the test statistic. (Round your answer to two decimal places.) t = 16 17 18 19 20 21 22 23 24 25 26 27 Direct Find the df. (Round your answer down to the nearest whole number.) df = 33 0 37 17 93 1 40 21 0 8 13 Use technology to find the P-value. (Round your answer to four decimal places.) P-value = 17 40 Stratified 28 0 37 13 93 13 48 21 0 13 40 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using a = 0.05. (Use direct stratified.) 13 77
You may need to use the appropriate technology to answer this question. The better-selling candies are often high in calories. Assume that the following data show the calorie content from samples of M&M's, Kit Kat, and Milky Way II. M&M's Kit Kat Milky Way II 240 235 200 210 205 208 220 245 202 250 215 190 240 230 180 Test for significant differences among the calorie content of these three candies. State the null and alternative hypotheses. O H,: Median MM = MedianK = Median Mw "KK H: Median MM * Median KK * MedianMW O Ho: Median MM = MedianKK = Median Mw H: Median MM > MedianK > Median,MW O Ho: Not all populations of calories are identical. H: All populations of calories are identical. O Ho: All populations of calories are identical. H: Not all populations of calories are identical. O Ho: MedianMM + MediangK + Median Mw H: Median MM = Medianyk = MedianMw Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three…
tion 1 Consider the following data set: et red 3, 4, 2, 2, 1, 1, 5, 4, 1, 2, 3, 4, 3, 2, 5. Find the median d out of move flag Select one: a. 5 b. 4 С. 2 d. 3
Determine what would be the most appropriate method of Colleting data today and the Scale of Measurement that will be used in a study to “Find the Number of schools that closed down in 2020 due to the CONVIRUS… Briefly explain justification of your choices in Number 1…

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