DUESTION 24In order to determine whether or not there is a significant difference between the hourly wages of two companies, the following data have been accumulated.Company ACompany BSample size80.0060.00Sample mean$16.75$16.25Population standard deviationS1.00S0 95The test statistic is64301Ob275Od 1645

Answered: Image /qna-images/answer/5460817d-3937-4811-bc32-55392c49838c.jpg

Answered: In order to determine whether or not…

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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For the following sample data, answer the following:Remember you can copy and "paste special" the table into the Excel sheet. 100 57 58 94 65 32 42 19 87 70 16 56 14 What is ¯xx¯ ? What is the median? What is the standard deviation? What is the Q1? What is the range?
The following data was collected during the Framingham Heart Study. Is there a statistically significant difference in mean SBP between men and women using a 5% level of significance? Sample size Mean Standard Deviation Men 1623 128.2 17.5 Women 1911 126.5 20.1
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For the following dataset:a) Compute and compare the sample mean and median. By how much the largest sample observation can be decreased while the median stays the same? b) Calculate the sample variance and standard deviation. c) Find the five numbers summary and draw a Box plot.
a) Studies have shown that a positive association exists between educational level and annual salary; in other words, people with more education tend to make more money. i. Does this finding mean that more education causes a person to make more money? Explain your answer. ii. Do you think there is a causal relationship between educational level and annual salary? Explain your answer.
Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball stadiums. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Are there any outliers, and are they likely to have much of an effect on the measures of variation? 38 50 50 65 70 75 85 140 185 216 265 350 400 1500 3000 The range of the sample data is 2962 dollars. (Type an integer or a decimal. Do not round.) The standard deviation of the sample data is 798.4 dollars. (Round to one decimal place as needed.) The variance of the sample data is 637463.1 dollars. (Round to one decimal place as needed.) Are there any outliers and, if so, are they likely to have much of an effect on the measures of variation? OA. No, there are not any outliers. B. Yes, the smallest amounts are much lower than the rest of the data, and appear to be outliers. It is not likely that these are having a large effect on the measures of variation. OC.…
Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball stadiums. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Are there any outliers, and are they likely to have much of an effect on the measures of variation? 3750505565859017019521925035040017503000
A. What is the mean, median and mode? Separate answers with a single comma, i.e. 3.000,3.000,3.000 b. What is the standard deviation and sample variance? separate answers with a comma, i.e. 3.000,9.000 c.What is the largest value, smallest value and the sum of values? Separate answers with a comma, i.e. 4.543,11.345,46.000
For the following sample, answer the following:Remember you can copy and "paste special" the table into the Excel sheet. Here is a sample of the cost of new cars. 34000 31000 37000 28000 27000 38000 39000 29000 40000 25000 26000 30000 Here is a sample of grades on a test. 63 66 84 30 85 89 83 34 79 96 87 71 What is the mean of the grades? What is the sample standard deviation of grades? As expected the cost of cars have a higher standard deviation, since the cost of cars is more spread out than the grades. What is the sample coefficient of variation of grades? Therefore, while the cost of cars have a higher standard deviation, the costs of cars have a lower coefficient of variation and are less spread out relative to their average cost.
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A recent survey of 1050 U.S. adults selected at random showed that 647 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.

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In order to determine whether or not there is a significant diference between the bourly wages of two companies, the following data have been accumulated. Company A Company B Sample size $0.00 60.00 Sample mean $16.75 $16.25 Population standard deviation $1.00 S0.95 The test statistic is