An article in Air and Waste ("Update on Ozone Trends in California's South Coast Air Basin," Vol. 43, 1993) studied the ozone levelson the South Coast air basin of California for the years 1976-1991. The author believes that the number of days that the ozoneexceeds 0.20 parts per million depends on the seasonal meteorological index (the seasonal average 850 millibar temperature). Thedata follow:Year Days Index16.31976 911977 105 17.11978 106 18.21979 108 18.11980 8817.21981 9118.21982 5816.01983 82 17.2Round your answers to 2 decimal places.(a) Fit a simple linear regression model to the data. Test for significance of regression using a = 0.05.y = iCalculate fo: iYear Days Index1984 8217.71985 6517.21986 6116.919874817.11988 6118.21989 43 17.31990 33 17.51991 3616.6i+ iIs the simple linear regression model significant? No.(b) Calculate a 95% confidence interval on the slope.≤B₁ ≤iX

The given data is as follows:…

Answered: An article in Air and Waste ("Update on…

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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Illustration 22.2. Compute the gross and net reproduction rates from the data given below: Age groups 15-19 20-24 25–29 30–34 35–39 40-44 45-49, Femal pop. (000) Female births 18900 71100 96900 1558 1112 1595 1629 1627 1522 1401 64200 34900 10800 800 Survival rate 0.914 0.899 0.884 0.868 0.852 0.834 0.813
Calculate Age-specific birth rates for the following data Female Popula- Age of Mother Registered Births tion 70000 53420 42540 39100 34220 25890 22310 8000 18500 15 - 19 20 - 24 25 - 29 30 - 34 35 - 39 40 - 44 45 - 49 16100 11300 7550 2760 425
Classify the following variables according to their scale and continuity. home ownership status Temperature Weight marital status Domain Educational status of individuals Income status of individuals Height of individuals Owning a credit card Likert Scale
The following table shows the average monthly distance traveled (in billion miles) by vehicles on urban highways for five different years. Urban Highways - Average Monthly Distance Traveled by Vehicles (Billion Miles) Years Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec Year 1 4.22 5.32 5.21 5.12 4.92 4.49 4.55 4.49 4.44 4.39 4.37 4.35 Year 2 4.31 5.44 5.34 5.24 4.98 4.59 4.68 4.65 4.61 4.68 4.74 4.79 Year 3 4.38 5.51 5.41 5.36 4.98 4.63 4.71 4.78 4.82 4.88 4.85 4.89 Year 4 4.45 5.59 5.5 5.41 5.01 4.72 4.78 4.79 4.82 4.92 5.06 5.11 Year 5 4.51 5.65 5.62 5.49 5.12 4.8 4.88 4.82 4.95 5.12 5.22 5.44 a. Construct a time series plot. What type of pattern exists in the data?
Thirty AA batteries were tested to determine how long they would last. The results, to the nearest minute, were recorded as follows: Table 3: Life of AA batteries, in minutes Battery life, x (in minutes) Number of battery 360 - 369 2 370 - 379 3 380 - 389 390 - 399 7 400 - 409 410 - 419 4 420 - 429 430 - 439 Based on Table 3: (a) Draw a cumulative frequency curve (ogive) to represent the above data. [Use graph paper] (b) Find the semi inter-quartile range by using the cumulative frequency curve. (c) Estimate the percentage number of battery with the battery life between 400 and 430 minutes. (d) of battery life. Calculate the mean and standard deviation for the number LO 3.
Consider the following data: Year Deaths 2000 17,050 Number of Deaths in the U.S. by Drug Overdose 2001 2002 2003 2004 2005 2006 2007 2008 17,510 14,311 13,352 17,771 14,516 11,153 18,656 16,643 Step 2 of 2: Find the three-period moving average for the year 2005. If necessary, round your answer to one decimal place.
(1)Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below. Lenght (mm) Frequency 80 - 99 1 100 - 119 16 120 - 139 71 140 - 159 108 160 - 179 83 180 - 199 18 200 - 219 3 What is the upper class limit for the seventh class?upper class limit =
Consider the following data: Year Answer Deaths Number of Deaths in the U.S. by Drug Overdose 2000 2001 2002 2003 2004 2005 2006 2007 2008 17,035 17,510 14,316 13,382 17,756 14,516 11,155 18,656 16,643 Step 1 of 2: Find the two-period moving average for the year 2008. If necessary, round your answer to one decimal place.
The following frequency table summarizes a set of data. What is the five-number summary? Value Frequency 7 1 8 1 9 3 10 1 13 3 15 3 16 2 17 1
The following data contain the quantity (millions pounds) of U.S. domestic fish caught annually over a 7 years period as published by the National Oceanic and Atmospheric Administration. Year Quantity2010 90692011 94892012 93972013 95072014 96832015 97072016 9489 a. Use a 3-year weighted moving average to forecast the quantity of fish for the years 2010 through 2016 for these data by using weightage of 0.45, 0.3 and 0.25 accordingly. Compute the error of each forecast and then determine the Mean Absolute Deviation (MAD) of error for the forecast.
A study was undertaken to compare the average high-density lipoprotein (HDL) levels of normal and obese adults in a certain community. HDL levels of a random sample of adults from this community were measured (in milligrams per deciliter or mg/dL) and presented below. Assume that the HDL levels of both the normal and obese adults follow the normal distribution with unknown but equal population variances. Is there a significant difference between the average HDL levels of normal and obese adults? Use a 5% level of significance.
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