air pollution control specialists in southern california monitor the amount of ozone, carbon dioxide, and nitrogen dioxide in the air on an hourly basis. the hourly time series dataexhibit seasonality, with the levels of pollutants showing patterns over the hours in theday. on july 15, 16, and 17, the following levels of nitrogen dioxide were observed in thedowntown area for the 12 hours from 6:00 a.m. to 6:00 p.m.July 15: 25 28 35 50 60 60 40 35 30 25 25 20July 16: 28 30 35 48 60 65 50 40 35 25 20 20July 17: 35 42 45 70 72 75 60 45 40 25 25 25a. construct a time series plot. What type of pattern exists in the data?b. identify the hourly seasonal indexes for the 12 readings each day.c. deseasonalize the time series.d. Using Minitab or excel, compute the linear trend equation for the deseasonalized data.e. compute the deseasonalized trend forecasts for the 12 hours for july 18 and then adjustthe trend forecasts using the seasonal indexes computed in part (b).

Complete the table: Age Number of Students Cumulative Frequency  15-18 4   19-22 8   23-26 4   27-30 4   31-34 2   35-38 8

The accompanying histogram is for pulse rates for 125 people. Convert the vertical axis to relative frequency and shows the values that would replace each of the values on the vertical axis.

Find the mean of the data from the frequency table: Value Frequency 0 6 1 0 2 6 3 8 4 9 5 6 Give your answer to two decimal places.

Richard’s doctor had told him he needed to keep track of his blood sugar readings. Listed below are his 20 latest readings. He wanted to create a visual aid for himself in order to see how his blood sugar was doing. 75 125 110 82 178 209 150 130 120 142 90 98 107 163 135 129 147 152 110 100 A. Create a frequency distribution table for the given data set. B. Create a histogram for the data set. C. Describe the distribution of the data.

The creator of a new online multiplayer survival game has been tracking the monthly downloads of the game. The following table shows the monthly downloads (in thousands) for each month of the current and previous year. Click on the datafile logo to reference the data.   The datafile logo.   Month Downloads Month Downloads (previous year) (thousands) (current year) (thousands) February 33.0 January 31.0 March 34.0 February 32.0 April 34.0 March 33.0 May 31.0 April 34.0 June 32.0 May 33.0 July 33.0 June 32.0 August 35.0 July 35.0 September 36.0 August 33.0 October 37.0 September 33.0 November 34.0 October 31.0 December 35.0     a. Compute the mean, median, and mode for number of downloads in the previous year. Mean (to 3  decimals)   thousand Median (to 2 decimal)   thousand Mode (to 2 decimal)   thousand b. Compute the mean, median, and mode for number of downloads in the current year. Mean (to  3 decimals)   thousand Median (to 2…

The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in eleven metropolitan areas across the upper Midwest region (OhioGasPrices.com website, March 18, 2012). Click on the datafile logo to reference the data. DATA file Shell BP Metropolitan Area Marathon Akron, Ohio Cincinnati, Ohio Cleveland, Ohio Columbus, Ohio Ft. Wayne, Indiana Indianapolis, Indiana Lansing, Michigan Lexington, Kentucky Louisville, Kentucky Muncie, Indiana Toledo, Ohio 3.77 3.72 3.87 3.76 3.78 3.87 3.89 3.79 3.83 3.83 3.85 3.77 3.83 3.85 3.93 3.84 3.84 4.04 3.87 3.87 3.99 3.79 3.78 3.81 3.69 3.78 3.84 3.84 3.83 3.79 3.79 3.86 3.86 Use a = .05 to test for any significant difference in the mean price of gasoline for the three brands. Round SS to 6 decimals, MS to 6 decimals, F to 2…

A drink vendor randomly asked college students how many soft drinks they had consumed during the past week. Their answers were as follows: 5,0,2,1.1.9,0,1,0,3,1.1.4,3,4, and 7. a. Make a frequency table (NOT grouped). b. Make a histogram based on the frequency table. c. Make a frequency polygon based on the frequency table. d. Describe the shape of the histogram (i.e., mode?, skewed? etc.).

I need help answering a-1 and a-2  Miles traveled since the last maintanence: Miles traveled since the last maintenance 11973 11969 11967 11948 11925 11922 11896 11883 11837 11814 11800 11798 11789 11782 11781 11778 11758 11757 11707 11704 11698 11691 11668 11662 11615 11610 11576 11533 11518 11462 11461 11418 11359 11358 11344 11342 11336 11248 11231 11222 11168 11148 11127 11112 11100 11048 11018 11003 10945 10911 10902 10802 10802 10760 10759 10755 10726 10724 10674 10662 10633 10591 10551 10518 10473 10355 10344 10315 10235 10227 10210 10209 10167 10140 10128 10095 10081 10075 10055 10000

Determine whether the given value is a static or parameter. A sample of employees is selected and it is found that 25% own a television.