Decide whether there is a relationship between mobile phone brands and the gender. Frequency cross classification0.90000.80000.70000.60000.50000.40000.30000.20000.10000.0000SamsungLGBasic Mobile Other Smart Do not useApplePhonePhonemobilephoneMaleFemale

The frequency table is the table which represent the number of chance of occurrence of observations…

Answered: Decide whether there is a relationship…

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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There are two main fishing spots in a certain video game, a river and a lake. In the river, out of the 57 fish that were caught, 31 of them were trout. In the lake, out of the 64 fish that were caught, 24 of them were trout. Use a significance level of a = 0.02 to test the claim that the proportion of trout in the river is greater than the proportion of trout in the lake. Let the river represent population 1, and the lake represent population 2. a.) State the null and alternative hypothesis using correct symbolic form. Ho: P1 P2 H1: P1 + P2 b.) What is the critical value? (round to two decimal places)
c) A major baseball league season came to an abrupt end in the middle of sporting season in 1999. In a poll of 600 adults, 174 blamed the players for the strike, 204 blamed the owners and the rest held various other opinions. Estimate the difference between the proportion of adults who blame players for the strike and the proportion of adults who blame the owners and interpret what the difference implies. What percent the adults have varying opinions on the strike.
Assume that you are employed by a mobile phone company and you want to characterize costumers on the basis of their mobile-phone activity. Which type of network would be most useful for representing the mobile-phone data of your company? Select one: a. Directed,Unweighted b. Directed,Weighted c. Simple d. Undirected, Weighted
"Tech D" has collected data concerning their 622 employees: 305 are married; 332 are over 40 years old; 311 are female; 196 are married and over 40; 181 are married and female; 235 are over 40 and female; 126 are married, over 40, and female. How many employees are over 40 and not married? You may want to draw a Venn Diagram to illustrate this situation.
2) Sheila scored 75, 80, 100, 60, and 85 on her last five history tests. She has a final exam that will count as two exams. What score must Shiela obtain on this final exam in order to earn the grade of B? the grading scale for B is 80-89.
A company has 30 employees, including a director. The lowest salary among the 30 employees is $22,000. The director’s salary is $180,000, which is more than twice as much as anyone else’s salary. Decide for each of the following statements about the 30 salaries whether it is true, false, or you cannot tell on the basis of the information at hand. • The median salary is below $60,000.• The average salary is below $60,000.• If all salaries are increased by $1,000, that adds $1,000 to the average.• If the director’s salary is doubled, and all other salaries remain the same, that increases the average salary.• If the director’s salary is doubled, and all other salaries remain the same, that increases the median salary.• The standard deviation of the salaries is larger than $180,000
Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graph
Answer it correctly and explain well. I will rate accordingly.
a. Identify two or three examples from your own academic field where it may be better to use a questionnaire rather than interviewing, and vice versa. b. Identify three situations where it would be better to use open-ended questions and three where closed questions might be more useful. Note: Please type the answer I need to copy paste it. Thank you
The level of water usage of 250 houses was rated in a survey as low, medium or high and the size of the houses as small, standard or large. The variables,level of water usage and size of house, as recorded in this survey, are a. both numerical variables. b. both categorical variables. c. neither numerical nor categorical variables. d. numerical and categorical variables respectively.
Represent the problem with Venn diagram and answer the question based on the diagram. Show the solution. A television poll of 151 persons found that; 68 watched Law and Order; 61 watched The West Wing, 52 watched the Sopranos, 16 watched both Law and Order and The West Wing; 25 watched both Law and Oder and the Sopranos; 19 watched both The West Wing and The Sopranos; 26 watched none of these shows. Question: How many persons watched all these shows?
8) In the US, 4.5% of the population identifies as lesbian, gay, bisexual, or transgender (see, for instance, this report). In the UK, the LGBT community accounts for 1.5% of the population. Which of the following can be inferred from the given information? a) The number of LGBT individuals in the US is greater than that in the UK. b) The proportion of LGBT individuals in the US is 3% greater than the proportion of LGBT individuals in the UK. c) The proportion of LGBT individuals in the UK is 3% less than that in the US. d) The proportion of LGBT individuals in the UK is 200% greater than that in the US. e) The proportion of LGBT individuals in the US is 200% greater than that in the UK.

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