1. The incidence of cancer among phosphate mine workers and their exposure to radiation was investigated. Cancerincidence was recorded among 60 phosphate mine workers who had 0-29 working level months (WLM) of exposure, 60phosphate mine workers who had 30-89 WLM of exposure, and 60 phosphate mine workers who had 90-120 WLM ofexposure. The number of cancer incidences for each group are presented in Table 1.Table 1: Two-way Table of CountsCancer IncidenceExposure LevelYesNoTotal0-29 WLM20406030-89 WLM33276090-120 WLM431760Total9684180Perform a x? test, at the 5% level of significance, whether cancer incidence rates differ between the three levels ofradiation among phosphate mine workers. b. Let pj denote the true cancer incident rate among phosphate mine workers with 0-29 WLM of exposure to radiation.Let p2denote the true cancer incident rate among phosphate mine workers with 30-89 WLM of exposure to radiation.Let p3 denote the true cancer incident rate among phosphate mine workers with 90-120 WLM of exposure to radiation.Choose the correct hypothesis test:Ho : P1 = P2 (Cancer incident rates are the same across the two levels of radiation among phosphate mine workers.)vs Ha : P1 + P2 (Cancer incident rates differ across the two levels of radiation among phosphate mine workers.) a =0.05Ho : P1 = P2 = P3 (Cancer incident rates are the same across the three levels of radiation among phosphate mine workers.)= 0.1vs Ha : P1 + p2 # P3 (Cancer incident rates differ across the three levels of radiation among phosphate mine workers.) a =Ho : P1 = P2 = P3 (Cancer incident rates are the same across the three levels of radiation among phosphate mine workers.)vs Ha : (Not all population proportions are equal. Cancer incident rates differ across the three levels of radiation among phosphate mine workers.)0.05Ho : P1 = P2 = P3 (Cancer incident rates are the same across the three levels of radiation among phosphate mine workers.)vs Ha : (Not all population proportions are equal. Cancer incident rates differ across the three levels of radiation among phosphate mine workers.)a = 0,1

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Answered: 1. The incidence of cancer among…

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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15. A survey asks, "How many hours last week did you watch television?" How would we classify this data? Group of answer choices Categorical and Ordinal Numerical and Continuous Categorical and Nominal Numerical and Discrete
5. What are the values of the five-number summary for the following data set in order from least to greatest? 1077, 1063, 1112, 1123, 1044, 1041, 1087, 1045, 1097, 1001, 1064, 1101, 1018, 1073, 1114 1001, 1044, 1073, 1101, 1123 1001, 1041, 1064, 1077, 1123 1018, 1045, 1077, 1112, 1114 O 1001, 1042.5, 1073, 1106.5, 1123
The data given below represent the percentage of energy derived from coal from the 50 states plus the District of Columbia. Construct both grouped frequency and grouped relative frequency distribution with class width 10.0 and starting lower class limit 0.0. 0, 0, 0, 0.9, 1.3, 2.7, 8.0, 8.4, 8.5, 10.3, 13.3, 15.6, 16.6, 23.2, 23.3, 27.4, 32.4, 34.6, 36.8, 38.3, 40.6, 42.4, 46.1, 48.5, 50.8, 51.1, 54.2, 55.7, 56.6, 57.7, 59.5, 60.2, 60.4, 60.8, 62.1, 62.3, 63.1, 64.3, 68.1, 75.0, 77.6, 83.1, 83.2, 87.7, 90.4, 90.4, 93.7, 94.2, 94.6, 95.8, 98.1
24.* Doughnuts and Fat. A classic study, conducted in 1935 by B. Lowe at the lowa Agriculture Experiment Station, analysed differences in the amount of fat absorbed by doughnuts in cooking with four different fats (10, 30,60, 90%)For the experiment, 24 batches of doughnuts were randomly divided into four groups of 6 batches each. The four groups were then randomly assigned to the four fats. Identify the a. experimental units. b. response variable. c. factors. d. levels of each factor. e. Treatments f. Sample size f. Type of variable g. Type of measurement
In a frequency distribution table with 10 classes, the class- width is 1.75 and the lowest class boundary is 7.6, then what is the upper class boundary of the highest class?
.2.2 The median incomes of females in each state of the United States, including the District of Columbia and Puerto Rico, are given in table #2.2.10 ("Median income of," 2013). Create a frequency distribution, relative frequency distribution, and cumulative frequency distribution using 7 classes. Table #2.2.10: Data of Median Income for Females $31,862 $40,550 $36,048 $30,752 $41,817 $40,236 $47,476 $40,500 $60,332 $33,823 $35,438 $37,242 $31,238 $39,150 $34,023 $33,745 $33,269 $32,684 $31,844 $34,599 $48,748 $46,185 $36,931 $40,416 $29,548 $33,865 $31,067 $33,424 $35,484 $41,021 $47,155 $32,316 $42,113 $33,459 $32,462 $35,746 $31,274 $36,027 $37,089 $22,117 $41,412 $31,330 $31,329 $33,184 $35,301 $32,843 $38,177 $40,969 $40,993 $29,688 $35,890 $34,381 2.2.6 Create a histogram and relative frequency histogram for the data in table #2.2.10.…
Maryland, as the four U.S. cities with the highest percentage of millionaires (Kiplinger website). Consider a sample of data that show the following number of millionaires for samples of individuals from each of the four cities. Millionaire Cannot conclude Bridgeport, CT CA San Jose, CA Yes 42 36 No 458 264 a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)? 0.436 Use Table 3 of Appendix B to find the p-value. The p-value is greater than 0.10 What is your conclusion? City Washington, D.C. 35 365 Bridgeport, San Jose, Washington, Lexington Park, CT D.C. MD Lexington Park, 46 27.4 Percentage, % 36.5 b. Using a = 0.05 level of significance, test for the equality of the population proportion of millionaires for these four cities. What is the p-value? Compute the value of the x² test statistic (to 3 decimals). 36.5 MD 33 367 that there is a difference among the population proportion of millionaires for these four cities.
11. If the temperatures of various cities are recorded for a year, what would the measures of spread tell you about the weather?
The ages of the 36 millionaires sampled are arranged in increasing order in the following table. 31, 37, 39, 39, 42, 42, 45, 47, 4848, 48, 52, 52, 53, 54, 54, 57, 5960, 61, 64, 64, 66, 66, 67, 68, 6869, 71, 71, 74, 75, 77, 79, 79, 79 a. Find and interpret the five-number summary.b. Identify potential outliers, if any.c. Construct and interpret a box plot.
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10. The most common species of sweat bees are green, red, and yellow. For each color, we select a sample of 100 of bees of this color and record their length (in inches). We then create 3 data sets of 100 observations each, called "green", "red" and "yellow". Below are the boxplots and histograms for these data sets. The labels of the variables are missing from the histograms, but are included in the boxplots. Our task is to identify the missing labels. Which one of the following statements is correct? HAE 1141 (a) green (b) red (c) yellow 00 0.5 1.0 1.5 2.0 0.5 1.0 1.5 20 0.0 05 1.0 1.5 (d) (e) (f) A) Histogram (d) is for green, (e) is for red, and (f) is for yellow. B) Histogram (f) is for green, (e) is for red, and (d) is for yellow. C) Histogram (e) is for green, (f) is for red, and (d) is for yellow. D) Histogram (f) is for green, (d) is for red, and (e) is for yellow. E) Histogram (d) is for green, (f) is for red, and (e) is for yellow. 9 2.0
10. The most common species of sweat bees are green, red, and yellow. For each color, we select a sample of 100 of bees of this color and record their length (in inches). We then create 3 data sets of 100 observations each, called "green", "red" and “yellow". Below are the boxplots and histograms for these data sets. The labels of the variables are missing from the histograms, but are included in the boxplots. Our task is to identify the missing labels. Which one of the following statements is correct? (a) green (b) red (c) yellow 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 (d) (e) (f) A) Histogram (d) is for green, (e) is for red, and (f) is for yellow. B) Histogram (f) is for green, (e) is for red, and (d) is for yellow. C) Histogram (e) is for green, (f) is for red, and (d) is for yellow. D) Histogram (f) is for green, (d) is for red, and (e) is for yellow. E) Histogram (d) is for green, (f) is for red, and (e) is for yellow. Frequency O'Z 02 4 Frequency OL Frequency…

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