A group of 110 people, who lived at varying distances (in kilometers) from the 3 kilometer island nuclear power station, were asked if they thought a fullevacuation of the area was required, when it went critical. The researches wanted to know if the opinion to evacuate or not depended on how far from thereactor people lived. The people were divided into 5 categories, based on the distance to the power station. Each person was given 3 choices:evacuation was needed, evacuation was not needed, they did not care about it.Evacuation neededx x x x-...-.--.Evacuation not neededX x x XXDo not careX x x X...You are doing a Chi Square test for independence. Compute the degrees of freedom for this test.

In the given situation, the people were divided into 5 categories. Each person was given 3 choices:…

Answered: A group of 110 people, who lived at…

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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A private opinion poll is conducted for a politician to determine what proportion of the population favors decriminalizing marijuana possession. How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 5%?
At the auction of the music collection, there is 1 masterpiece sheet music whose composer is unknown. A professor from the College of Music, Universität der Künste Berlin was asked to analyze who the score composer is. You are asked to help analyze statistically. The professor saw there were 2 names who may have been the composer, namely: Johann Strauss II and Tchaikovsky. The the professor also provides general data, namely the average number of tones per bar of each composer. Give the results of your analysis, who is the composer of the sheet music. Calculations are made using a spreadsheet! Note: Take the last 3 digits of your ID (2602296545 ). Use the step below: 1. For example, for example ID 2602296545 → 545 is taken. 2. Replace number 5 with number 1; example: ID 545 → 145 3. Last 3 digits of your new ID == abc; example 145: a = 1, bc = 45.
The scores of a test for an engineering class of 30 students are shown here. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) Scores: 81, 54, 55, 56, 96, 86, 98, 61, 90, 52, 92, 76, 66, 84, 79, 70, 71, 88, 62, 74, 53, 65, 55, 78, 79, 58, 60, 72, 51,80 (a) Determine the frequency (f), midpoint (x), and xf for each range and fill in the table below. (First, organize the scores into the following ranges: 50-59, 60-69, 70-79, 80-89, and 90-99.) (b) Using the following equation, determine the mean value (x) and fill in the table below. Σ(XA) n X = (c) Calculate (x − x) for each range and fill in the table below. (d) Calculate (x - x)²f for each range and fill in the table below. Range Frequency f Midpoint x 50-59 60-69 70-79 80-89 90-99 S = Enter a number. S = (e) Using the following equation, compute the standard deviation of the class scores. Σ(x-x) ²f n - 1 Σ(x-x) ²4 n - 1 = xf 29 X X - X (x - x)²f
When the measure of spread is compared between two data sets, data set A has an interquartile range of 12, and data set B has an interquartile range of 23. How do the values of data set A compare to data set B? The values of data set A are about the same on average as the values of data set B. The values of data set A are more spread out compared to the values of data set B. The values of data set A are less spread out compared to the values of data set B. The values of data set A are less on average compared to the values of data set B.
According to the results of a survey, 40% of 396 Leople indicated that American football is their favorite sport. Assuming that the percentage remains the same, how many more people should be surveyed to have a margin of error of 4%? Round up to the nearest whole number, if necessary. In order to have a margin of error of 4%, you need to survey more people.
The distribution of hemoglobin in grams per deciliter of blood if approximately N(14,1) in women and approximately N(16,1) in men. Use software or Table B to find the answers. A) What percent of women have more hemoglobin than the men's mean hemoglobin? B) What percent of men have less hemoglobin than the women's mean hemoglobin? C) What percent of men have more hemoglobin than the women's mean hemoglobin?
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For each scenario below name one categorical and one quantitative used and write the complete answer in the box below. a) 9 randomly selected patients with 4 blood types (A , B, O, AB) were tested for their body temperature. Categorical variable: Quantitative variable: b) 10 faculty members from the Physics, Psychology and Biology department were asked about their annual salary. Categorical variable: Quantitative variable:
The Sea Wharf Restaurant would like to determine the best way to allocate a monthly advertising budget of 55,000 between newspaper advertising and radio advertising. Management deidad that at least 30% of the budget must be spent on each type of media and that the amount of money spent on local newspaper advertising must be at least twice the amount spent on radia advertising. A marketing consultant developed an index that measures audience exposure per dollar of advertising on a scale from o to 100, with higher values implying greater audience exposure. If the velue of the index for local newspaper advertising is 80 end the value of the index for spot radio advertising is 90, how should the restaurant allocate its advertising budget to maximize the value of total audience exposure Formulate a inear programming model that can be used to determine how the restaurent should allocate its advertising budget in order to maximize the value of total audience exposure. (Assume Nis the amount…
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