(c) Longevity: Honolulu USA Today reported that the state with the longest mean life span is Hawaii, where thepopulation mean life span is 77 years. A random sample of 20 obituary notices in the Honolulu Advertizer gavethe following information about life span (in years) of Honolulu residents:68697281935619789483848597757186476627i.Compute the mean and standard deviation. Round off the mean to one decimal place and two decimalplaces for the standard deviation.Assuming that the life span in Honolulu is approximately normally distributed, does this informationindicate that the population mean life span for Honolulu residents is less than 77 years? Use 5% level ofsignificance.ii.

For the given data Find all the required

Answered: (c) Longevity: Honolulu USA Today…

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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Varatta Enterprises sells industrial plumbing valves. The following table lists the annual sales amounts for a portion of the salespeople in the organization for the most recent fiscal year. a. Compute the mean (in $1000), variance (in $10002), and standard deviation (in $1000) for these annual sales values. Round your answers to the nearest whole number. b. In the previous fiscal year, the average annual sales amount was 290 thousand with a standard deviation of 95 thousand. Discuss any differences you observe between the annual sales amount in the most recent and previous fiscal years. Which of the following is correct? (i) The difference in the mean annual sales amount is very small and is most likely due to random change in demand for these products. (ii) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly higher. (iii) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly…
A national newspaper reported that the state with the longest mean life span is Hawaii, where the population mean life span is 78 years. A random sample of 20 obituary notices in the Honolulu Advertizer gave the following information about life span (in years) of Honolulu residents. 72 68 81 93 56 19 78 94 83 84 77 69 85 97 75 71 86 47 66 27 1. Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.) 2. What is the value of the sample test statistic? (Round your answer to three decimal places.)
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The grades for 30 students on the most recent exam are given in the data table below: Round your answer to 2 decimal places as needed 70 70 80 80 70 60 90 80 80 80 60 70 70 70 70 90 70 70 80 90 60 90 70 60 90 70 06 90 90 80 What is the mean score for the exam? What is the median score for the exam? What is the standard deviation for the exam?
The table below gives the number of hours spent watching TV last week by a sample of 24 children. 83 49 57 34 55 78 43 53 69 22 23 50 20 80 70 22 26 22 31 30 51 79 93 19 Range = Standard Deviation = Round your answers to the nearest hundredth as needed.
TABLE 2: San Pedro Participant Height (inches) Weight (pounds) 1 66 240 2 72 190 3 61 250 4 44 120 5 65 222 The above tables include data from a sample of city employees in San Pedro. Use the table to answer the following question. What is the mean height? 0 0 = 61.2 x= 61.8 x= 61.6 = 61.6
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The durations (minutes) of 26 electric power outages in the community of Sonando Heights over the past five years are shown below. 36 49 23 68 26 12 54 13 50 4 14 42 42 101 31 18 13 51 22 3 17 26 91 25 13 20 Click here for the Excel Data File (a) Find the mean, median, and mode. (Round your answers to 2 decimal places.)

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