(b): Following Data are Blood Lead Concentrations of Group of workers in a countryBlood Leads0 - 920 – 2930 – 3940 – 4950 – 5960 – 6970 – 7980 – 99Frequency1521395465288494Find Arithmetic Mean, Median, Mode, Q1, Q3, D9, P55.

Given the data as Blood Leads Frequency 0 - 9 15 20 - 29 21 30 - 39 39 40 - 49 54 50 -…

Answered: (b): Following Data are Blood Lead…

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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Q7. The age group of people using Instagram and the number of people is given below: Age Group Number 10 – 18 18 – 26 26 – 34 34 – 42 42 – 50 50 – 58 18 24 15 14 11 8. of people Using the given data: Draw a histogram. ii. Find the number of people below the age of 26 using Instagram. iii. Which age group uses Instagram the most? iv. Find the mean of the given data. i. [1.5] [0.5] [0.5] [2.5]
Hw 19. Calculate median from the following data: 0-10 10-30 30-60 60-80 80-90 Marks 15 30 8. No. of Students
C. The following table summarizes the grade point averages (GPAS) of graduate students in a statistics class. Approximate the mean GPA of the class. GPA Frequency 3.0-under 3.2 3.2-under 3.4 3.4-under 3.6 6 3.6-under 3.8 16 3.8-4.0
Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
4. Find the grouped mean Height F 60-65 2 66-71 25 72-77 12 78-83 3
8.Suppose you compare the mean of raw data and the mean of the same raw data grouped into a frequency distribution. These two means will be a. Exactly equal. b. The same as the median. c. The same as the geometric mean. d. Approximately equal.
Which one of the following summary statistics best matches the data on the abundance of various bird species shown here? Frequency (No. species) 25 20 15 10 5 0 0 Mean = Mean = Mean = 100 200 300 400 500 600 Abundance (No. individuals) 75 individuals, s.d. = 122 individuals 300 individuals, s.d. = 14871 individuals 10 individuals, s.d. = 10 individuals Mean = 10 individuals, s.d. = 14871 individuals Mean 75 individuals, s.d. = 14871 individuals
The following frequency table gives the masses of 12 students in a statistics class. Mass (kg) Number of students 55 57 59 61 63 1 4 (a) Draw a frequency bar chart for the data.(Hypothetical) (b) Find, (i) the mode, (ii) the median. (c) Find the mean mass.
5. Draw a histogram for the following data. Weekly wages in Rupees Number of workers 10-15 7 15-20 19 20-25 27 25-30 15 30-40 12 40–60 12 60–80 8.
hypothesis testing is the topic
Find the mean for the following grouped data. Interval Frequency 0-4 4 5-9 8 10-14 5 15-19 10 20-24 4 25-29 5

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(b): Following Data are Blood Lead Concentrations of Group of workers in a country Blood Leads 0 – 9 20 – 29 | 30 – 39 40 – 49 50 – 59 60 – 69 70 – 79 80 – 99 Frequency 15 21 39 54 65 28 84 94 Find Arithmetic Mean, Median, Mode, Q1, Q3, D9, P55.