There are four entrances to the Government Center Building in downtown Philadelphía. The building maintenance supervisor wouldlike to know if the entrances are equally utilized. To investigate, 390 people were observed entering the building. The number usingeach entrance is reported below. At the 0.01 significance level, is there a difference in the use of the four entrances?華!EntranceFrequencyMain StreetBroad StreetCherry StreetWalnut Street7810311792Total390picture Click here for the Excel Data FileHe: TTM=TB TTC = TWH: The proportions are not equal.a. State the decision rule. Use 0.01 significance level. (Round your answer to 3 decimal places.)Reject Ho if chi-square>b. How many degrees of freedom are there?Degrees of freedomc. Compute the value of chi-square. (Negative amounts should be indicated by a minus sign. Leave no cells blank - be certain toenter "O" wherever required. Round fe. (fo-fe) and (fo-fo/f, to 2 decimal places. Round x to 2 decimal places.)Entrancefofefo-fe(fo-fe)/feMainBroadCherryWalnutTotald. What is your decision regarding Hg?Ho isThe entrancesequally preferred.

For the given data Perform chi square goodness of fit

Answered: There are four entrances to the…

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 researcher from the ministry of education wants to find out if there is an academic difference in students from different parishes in Jamaica based on the CSEC examinations. He selected 20 students who completed the exam from three parishes; St James, St Ann, Kingston. He will assess them based on their English and Mathematics scores. Use the provided data to do the following questions. See the tablw below t answer Questions ID Parish English Mathematics 1 StJames 90 92 2 StJames 83 83 3 StJames 80 70 4 StJames 82 65 5 StJames 90 92 6 StJames 95 94 7 StJames 98 66 8 StJames 96 77 9 StJames 81 78 10 StJames 84 80 11 StJames 63 70 12 StJames 71 66 13 StJames 72 68 14 StJames 66 69 15 StJames 75 75 16 Kingston 79 74 17 kingston 67 63 18 kingston 65 62 19 kingston 65 77 20 kingston…
Below is a sample of 21 diastolic blood pressure readings. Data: 104, 88, 93, 51, 56, 70, 68, 84, 78, 67, 88, 93, 96, 80, 80, 75, 78, 85, 88, 80, 82 a. What is the class width if you use 5 classes to create a frequency table? b. What is the mean? Round your answer to two decimal places. c. What is the median? d. What is the range? e. What is Q1? f. What is Q3?
The length (in words) of seven articles from a particular newspaper are listed below. Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found or a measure does not represent the center of the data, explain why. 1153 817 1125 1371 1277 O O O Find the mean word count. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mean word count is 1178.6. (Round to one decimal place as needed.) B. There is no mean word count. Does the mean represent the center of the data? 1229 1278 O A. The mean represents the center. B. The mean does not represent the center because it is the smallest data value. OC. The mean does not represent the center because it is not a data value. D. The mean does not represent the center because it is the largest data value. O E. There is no mean word count.
Provide the rank for each number in this data set: 5, 7, 7, 8, 7 5 7 8 Question Help Question 1: Message Message in
Indicate the level of the measurement of the data in the table below. Write down the number of the question with the correct answer. Religious affiliationThe number of sit-ups you can doNumber of traffic fatalitiesTime required to complete a crossword puzzle The ages of the students in your study groupThe colours you can identify in a rainbowTelephone numbers in a telephone directoryShoe sizesThe three major professional tennis tournaments The classification of Boeing aircraft as 727, 737 or 747, according to size
a. Complete the last column of a copy of this table. Ago Number of People Proportion of Population Under 18 74,181,467 0.2403 18–44 112,806,642 45-64 81,489,445 0.2639 65 and Over 40,267,984 Total 308,745,538 Source: Age and Sex Composition: 2010, Census Briefs, www.census.gov/prod/ cen2010/briefs/c2010br-03.pdf
Below is a histogram of the tuition and fee charges for 64 four-year colleges in Massachusetts. What is the number of universities/colleges with tuition and fee charges covered by the leftmost bar in the histogram.
A professor has twelve students in her class. Her class took a test with the following results: 73, 55, 72, 98, 77, 93, 58, 78, 79, 95, 96, 86 a. What was the mean grade on the test? (Simplify your answer and round to one decimal place.) b. What was the median grade on the test? (Simplify your answer and round to one decimal place.) C c. What was the mode? If there are no modes, enter “NONE”. Otherwise, enter the mode (or modes, separated by a comma). Mode(s) = $ Mean = 5 4 I Median = JO D f V % 5 t 6.0 b 6 Oll y h & 7 n u - * 00 8 m ( 9 k S O n L O A р alt 7 + [ // ctri
A math teacher asks each student how much time they spent studying for their last math test. She then checks each student’s overall mark. Is this case an experimental study or an observational study? 1.experimental study 2.observational study
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A histogram which is not symmetrically bell-shaped is called shrewed skewed stewed spoofed
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