"Unknown cultural affiliations and loss of identity at high elevations." These are words used to propose the hypothesis that archaeological sites tend to lose their identity as altitude extremes are reached. This idea is based on the notion that prehistoric people tended not to take trade wares to temporary settings and/or isolated areas. As elevation zones of prehistoric people (in what is now the state of New Mexico) increased, there seemed to be a loss of artifact identification. Consider the following information. Elevation Zone 7000-7500 t 5000-5500 ft Number of Artifacts 109 136 Number Unidentified 72 28 Let p, be the population proportion of unidentified archaeological artifacts at the elevation zone 7000-7500 feet in the given archaeological area. Let p, be the population proportion of unidentified archaeological artifacts at the elevation zone 5000-5500 feet in the given archaeological area. A USE SALT (a) Find a 95% confidence interval for P-Pa (Use 3 decimal places.) lower limit upper limit

"Unknown cultural affiliations and loss of identity at high elevations." These are words used to propose the hypothesis that archaeological sites tend to lose their identity as altitude extremes are reached. This idea is based on the notion that prehistoric people tended not to take trade wares to temporary settings and/or isolated areas. As elevation zones of prehistoric people (in what is now the state of New Mexico) increased, there seemed to be a loss of artifact identification. Consider the following information. Elevation Zone 7000-7500 t 5000-5500 ft Number of Artifacts 109 136 Number Unidentified 72 28 Let p, be the population proportion of unidentified archaeological artifacts at the elevation zone 7000-7500 feet in the given archaeological area. Let p, be the population proportion of unidentified archaeological artifacts at the elevation zone 5000-5500 feet in the given archaeological area. A USE SALT (a) Find a 95% confidence interval for P-Pa (Use 3 decimal places.) lower limit upper limit

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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"Unknown cultural affiliations and loss of identity at high elevations." These are words used to propose the hypothesis that archaeological sites tend to lose their identity as altitude extremes are reached. This idea is based on the notion that prehistoric people tended not to take trade wares to temporary settings and/or isolated areas. As elevation zones of prehistoric people (in what is now the state of New Mexico) increased, there seemed to be a loss of artifact identification. Consider the following information. Elevation Zone Number of Artifacts Number Unidentified 7000-7500 ft 115 66 5000-5500 ft 136 22 Let p1 be the population proportion of unidentified archaeological artifacts at the elevation zone 7000-7500 feet in the given archaeological area. Let p2 be the population proportion of unidentified archaeological artifacts at the elevation zone 5000-5500 feet in the given archaeological area. (a) Find a 99% confidence interval for p1 – p2. (Use 3 decimal places.)…
Group problems: tlot ti eoob tedw bne snil de gonod to cgole odi ri todW d) 1. Since the 1990s there have been many high profile cases of violence in schools. The extensive media coverage of these events may convince people that school crime has increased. The data set below is from the National Center for Educational Statistics (NCES). (a) Does the data at the right suggest that school crime is increasing or decreasing? How do you know? Total school crimes in the US (in millions) Year odt joa 1992 X = 0 3.409 1993 3.795 1994 3.800 1995 1996 3.468 (b) Use technology to plot this data. Does the data look roughly (but not necessarily perfectly) linear? 3.163 1997 2.721 onil 1998 2.716 1999 2000 2001 2.490 1.946 2.001 (in millions). Find the linear regression function to model 2002 2004 1.754 (c) Let y = c(x) represent the total school crimes in the Us %3D this data. Record your equation here, rounding values to 4 2002 2005 2006 1.930 1.446 1.488 decimal places. 1.676
If we were to plot the IQ scores of every person living in the United States on a graph, we would end up with: O a downward sloping line. O a vertical line. O a uniform ditribution- that is, a straight horizontal line. O a bell-shaped curve.
1. Consider the following table of data: Defects per 100 vehicles (alphabetical by brand) BRAND. DEFECTS Acura. 89 Audi. 111 BMW. 113 Buick. 114 Cadillac. 111 Chevrolet. 111 Chrysler. 126 Dodge. 131 Ford. 104 GMC. 124 Honda. 88 Hyundai 80 Infinite. 83 Jaguar. 129 Jeep. 128 Kia. 135 Land Rover 175 Lexus. 107 Lincoln. 93 Mazda. 114 Mercedes-Benz 106 Mercury. 113 MINI. 125 Mitsubishi. 147 Nissan. 111 Porsche. 91 Ram. 110 Scion. 114 Subaru. 130 Toyota. 117 Volkswagen. 132 Volvo. 96 A. Construct a stem-and-leaf plot for the number of defects per 00 vehicles for these 32 brands. S-and-LP for. Weights Stem unit. =. 10 Leaf unit. =. 1 Frequency. S. L
3. The following temperatures in degree Celsius were recorded during a period starting at midnight. Find the mode. 26 26 28 29 32 30 29 27 28 29 31 32 28 27 25 27 27 26 26 28 30 33 30 28
Data on the gasoline tax per gallon (in cents) as of a certain date for the 50 U.S. states and the District of Columbia are shown below. Gasoline Tax per Gallon Gasoline Tax per Gallon State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi 50 40 30 USE SALT 20 19.1 10- 9.1 19.1 21.9 37.1 23.4 25.1 22.9 23.6 30.7 26.6 18.4 32.9 33.2 29.1 31.9 25.1 25.9 21.0 31.3 32.9 26.6 (b) Construct a boxplot of the data set. 60 30.8 30.5 18.5 60 50 40 State 30 Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont irginia Washington West Virginia Wisconsin Wyoming 60 50 40 30 20 17.4 10 27.7 27.8 23.9 23.7 14.7 18.8 33.9 35.2 23.1 27.9 (a) The smallest value in the…
Figure 3. Parent-child reading time. 10 10 12 14 18 20 22 24 26 28 16 30 32 Amount of reading (times per two weeks) Note: Frequency of parent-child reading interactions in a 2-week period for the sample of 30 preschool children from low-income families. Frequency refers to the number of children in each category of reading interactions Figure 2. Children's books in the home. 15 10 - 10 20 30 40 50 60 70 80 90 100 110 Number of books Note: Number of children's books in the home for the sample of 30 preschool children from low-income families. Frequency refers to the number of children in each category of books.
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Table 1: Cross Tabulation - Frequency Table Geneva Location 0 1 2 3 Total Geneva Location 0 1 2 3 Total FREQUENCY - DAILY SALES BY LOCATION Saratoga Location 0 O 0.0800 O 0.2300 O 0.1200 O 0.0300 O 0.1500 21 21 54 9 3 0 1 30 36 42 9 117 1 2 24 33 9 6 72 3 2 42 9 18 12 3 4 RELATIVE FREQUENCY - DAILY SALES BY LOCATION Saratoga Location 3 12 2 2 3 5 5 4 5 0.0700 0.1000 0.0800 0.0700 0.1200 0.1100 0.0300 0.0067 0.0000 0.0067 0.0600 0.0033 0.0100 0.0067 0.0300 0.1400 0.0300 0.0400 0.0100 0.0300 0.0200 0.0100 0.0167 0.0000 0.1800 0.3900 0.2400 0.1400 0.0400 0.0100 3 0 1 2 0 Total 86 111 77 26 300 Total 0.2867 0.3700 0.2567 0.0867 1.0000 According to Table 1 above, the probability that both locations will only sell two cars is.
from Silva and Tenreyro (2017), plots the total fertility rate against real per capita income for 88 countries in 1960 (circles) and in 2013 (triangles). Figure 3 Fertility-Income Relation in 1960 and 2013 O 1960 4 2013 Fited line 1960 Fitted line 2013 GDP per capita (USS) Source: Authors using data from the World Development Indicatorn database. Note For a sample of 88 countries, the figure shows the scanerplos and fined line (that is, the kowess smoothed relationship or locally weighted snoothing function) between the total fertility rate and log of per capita GDP (in constant 2005 USS) in 1960 and 2013. The xaxis is log scale. Describe in words what the figure reveals about the relationship be- tween the level of income per capita and fertility in 2013 across countries and discuss to which extend the empirical relationship observed in 2013 is or is not consistent with the predictions of the Solow growth model with population growth, which takes fertility as exogenously given. In…
2. If points C, D, and E are on a line and CD = 20 and CE = 32, what are the %3D possible values of DE?
Mariah Jacobsen is the marketing manager at ABC Electronics, a major consumer electronics supplier in the northwest. Over the last five years, sales of the company's flagship product - the Wizer Anonymizer (the WA) - have been 45000, 45500, 44500, 46000 and 44000 units. This rate of sales is considered average for the product over the last twenty years or so. Ms. Jacobsen believes that the distribution of the WA's sales is normal with a standard deviation of 1500 units. If she were asked to make a forecast of next year's sales to upper management, what is the likelihood that she would be correct if she predicts sales between 43000 and 46000?