524 students from UC Berkeley are surveyed about whether they are from Northern California, SouthernCalifornia, Central California, or from another state or country. A researcher is interested in seeing if theproportion of students from each of the four regions are all the same for all UC Berkeley students. Thetable below shows the outcome of the survey. Fill in the expected frequencies.Frequencies of UCB Students' Home TownsFrequencyOutcomeExpected FrequencyNorthern76CaliforniaSouthernCalifornia157CentralCalifornia113Out ofState178

The categorical variable is outcome. We have to find the expected values for each outcome. This is…

Answered: 524 students from UC Berkeley are…

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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Similar questions

What is the Sample Variance for the following numbers: 79, 77, 50, 49, 35
Consider the following sets of sample data: A: 145, 126, 120, 97, 123, 119, 115, 96, 134, 125, 96, 125, 145, 106 B: 4.09, 4.49, 4.52, 4.62, 4.15, 2.93, 3.91,4.88, 4.54, 4.66, 4.44 Which of the above sets of sample data has the smaller spread?
A sample of 339 people is selected. The people sampled are classified according to their place of residence and the highest educational degree that they have earned. The results are given in the contingency table below. Highest degree earned No college degree Two-year degree Four-year degree Advanced degree Urban 19 44 33 25 Place of residence Suburban 39 41 21 26 Rural 15 29 18 What is the relative frequency of people in the sample who have an advanced degree? Round your answer to two decimal places. 29
What is the Sample Variance for the following numbers: 84, 66, 44, 17, 11, 65, -5, 51, 88
Suppose a random sample of 1389 Californians who own their own homes were surveyed. The table below shows the results of the survey Observed Frequencies of Political Affiliation from the Sample Outcome Observed Frequency Democrat Republican Independent/Other 361 597 431 The second column of the table below shows the distribution of political affiliation for the entire population of California voters. Fill in the expected frequencies. Round to two decimal places, if necessary. Frequencies of Political Affiliation Expected Percent Outcome Expected Frequency Democrat 40 Republican 32 Independent/Other 28
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Oxford Starksville Danville Athens ……….... Police 23 24 30 33 Number of Crimes 18 15 Click here for the Excel Data File 9 11 Number of crimes City Holgate Carey Whistler Woodville > Answer is complete but not entirely correct. 40.6081 X (90.0408) ► x Answer is complete and correct. 19✔ Police 24 20 19 27 a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) Number of Crimes 9 22 24 10 b. Estimate the number of crimes for a city with 21 police officers. (Round your answer to the nearest whole number.)
Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars, midsize cars, and full-size cars. It collects a sample of cars each of the cars types. The data below displays the frontal crash test performance percentages. Test whether there are statistical differences in the frontal crash test performance for each type of car. Car Sizes Compact Cars Midsize Cars Full-Size Cars 95 95 93 98 98 97 87 98 92 99 89 92 99 94 84 94 88 87 99 93 88 98 99 89 What conclusions can we draw from the follow-up t-tests? There is/are a total of ______ statistically significant difference(s) between car type pairs out of the follow-up t-tests. Options: a) 1 b) 2 c) 3 d) 4 e) 5 f) 6
The Kick Avenue has 5 of the best-selling shoes in Indonesia. Following is the data obtained by Kick Avenue for total sales in the last 1 month. a. In how many different ways can the 4 shoe samples be formed from the data above? b. What is the population mean? c. What is the mean value for the sampling distribution above?
Health insurer benefits vary by the size of the company. The sample data below show the number of companies providing health insurance for small, medium, and large companies. For the purpose of this study, small companies are companies that have fewer than 100 employees. Medium-sized companies have 100 to 999 employees, and largevcompanies have 1000 or more employees. The questionnaire sent to 225 employees asked whether or not the employee had health insurance and then asked the employee to indicate the size of the company. Health Insurance Size of company Yes No Total Small. 35 15 50 Medium 67 8 75 Large 87 13 100 A. Conduct a test of independence to determine whether health insurance coverage is independent of the size of the company. What is the p-value? Compute the value of the x2 test statistic (to 2 decimal)
Please scroll down to see the entire question. The quality control manager of an automobile parts factory would like to know whether there is a difference between the proportion of defective parts produced on different days of the work week. Random samples of 100 parts produced on each day of the week were selected, with the following results: Result: Mon Tues Wed Thurs Fri # of defective parts: 12 7 7 10 14 # of non-defective parts: 88 93 93 90 86 At 5% level of significance, is there evidence of a significant difference in the proportion of defective parts produced on the various days of the week (A ) Step-1: State the hypotheses ( H0 and H1 ), and identify the claim A. H0: Proportion of defective parts is not the same for the days of the week. H1: Proportion of defective parts is the same for all days of the week B. H0: Proportion of defective parts is dependent on the days of the week H1: Proportionof defective parts is…
A random sample of 1756 Texas government employees were selected for a study on race. The table below shows the results of the survey. Observed Frequencies of Race from the Sample Outcome Observed Frequency White 720 Hispanic 755 Black 158 Other 123 The racial distribution for the state of Texas is shown in the second column below. Fill in the expected frequencies. (Round to the nearest whole number). Frequencies of Race Outcome Expected Percent Expected Frequency White 42 Hispanic 40 Black 10 Other 8
Determine the sample in this research scenario: Dr. Eglovitch wants to know whether type of exercise, running or yoga, improves post-partum depression. One hundred women are recruited from obstetricians’ offices in the Richmond area. Group of answer choices A.100 postpartum women whose depression was measured B.Type of exercise C. Postpartum depression D. All postpartum women

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