The contingency table for a sample of corporate executives classified by educational level and the social activity follows. Social Activity Education Above Average Average Below Average College 30 20 10 High School 20 40 90 Grade School 10 50 130 What does the expected frequency for the "above average" social activity and "high school" education equal?

The contingency table for a sample of corporate executives classified by educational level and the social activity follows. Social Activity Education Above Average Average Below Average College 30 20 10 High School 20 40 90 Grade School 10 50 130 What does the expected frequency for the "above average" social activity and "high school" education equal?

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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The data set below represents the ages of 30 executives. Which ages are above the 75th percentile? 42 59 66 47 58 41 56 53 60 54 56 49 66 56 51 62 48 41 51 43 53 40 49 44 28 34 37 42 43 44 Determine the values in the data set above the 75th percentile. If a data value above the 75th percentile appears more than once in the data set, make sure to include that value in your answer the appropriate number of times. The ages above the 75th percentile are (Use a comma to separate answers as needed.)
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South Dakota prices vary $350,000: $400,000:$400,000:$425,000:$429,000: $440,000: $560,000: $585,000,: $585,000: $785,000 : $1,300,000. We found the following Mean = 569000 SD = 272703.1353 T score = .7113 P Value = .4932 We failed to reject the hypothesis. What is a 95% confidence interval and how would you create one for the population average price? What would it look like. How does this related to Central limit therorem? If you had a margin of error of $13,000 how large of sample would you need with a 90% confidence interval using the given tscore.
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What is the relationship between the attendance at a major league ball game and the total number of runs scored? Attendance figures (in thousands) and the runs scored for 10 randomly selected games are shown below. Attendance Runs 52 12 39 34 7 6 30 4 10 6 20 60 14 5 14 36 16 5 9 6
A marketing firm is doing research for an internet-based company. It wants to appeal to the age group of people who spend the most money online. The company wants to know if there is a difference in the mean amount of money people spend per morith on Internet purchases depending on their age bracket. The marketing firm looked at two age groups, 18-24 years and 25-30 years, and collected the data shown in the following table. Let Population 1 be the amount of money spent per month on internet purchases by people in the 18-24 age bracket and Population 2 be the amount of money spent per month on internet purchases by people in the 25-30 age bracket. Assume that the population variances are not the same. Internet Spending per Month 18-24 Years Answer Mean Amount Spent Standard Deviation Sample Size Step 1 of 2: Construct a 99 % confidence interval for the true difference between the mean amounts of money per month that people in these two age groups spend on Internet purchases. Round the…
A graduating class reported starting salaries represented on the following frequency table. Number of students Starting Salary ($) 10 15,000 17 20,000 25 25,000 38 30,000 27 35,000 21 40,000 45,000 For the data in the table above, what is the MEAN?
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South Dakota prices vary $350,000: $400,000:$400,000:$425,000:$429,000: $440,000: $560,000: $585,000,: $585,000: $785,000 : $1,300,000. We found the following Mean = 569000 SD = 272703.1353 T score = .7113 P Value = .4932 CI: 385795.5409,752204.4591 If you had a margin of error of $13,000 how large of sample would you need with a 90% confidence interval using the given tscore.
what is the mean of the data set?
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