Homework Answers
Solution:
Given that,
| Class interval | Class mark | Absolute freq, | Cumulative freq. | Relative freq, | Cumulative relative freq. |
| 1.5 -1.9 | 1.7 | 2 | 2 | 2 / 40 = 0.05 | 0.05 |
| 2.0 - 2.4 | 2.2 | 1 | 2 + 1 = 3 | 1/40 =0.025 | 0.05 + 0.025 =0.075 |
| 2.5 - 2.9 | 2.7 | 4 | 3 +4 = 7 | 4 / 40 =0.1 | 0.075+ 0.1 =0.175 |
| 3.0 - 3.4 | 3.4 | 15 | 7 + 15 =22 | 15 / 40 = 0.375 | 0.175 + 0.375 = 0.55 |
| 3.5 - 3.9 | 3.7 | 10 | 22 +10= 32 | 10 / 40 = 0.25 | 0.55 + 0.25 = 0.8 |
| 4.0 - 4.4 | 4.2 | 5 | 32 + 5= 37 | 5 / 40 = 0.125 | 0.8 +0.125 =0.925 |
| 4.5 - 4.9 | 4.7 | 3 | 37 + 3 =40 | 3 / 40 = 0.075 | 0.925 + 0.075 = 1 |
Add Answer to:
Life has been measured in years of 40 electric batteries, seven classes have been created, and...
QUESTION 1 a) Consider the data of Table 1.1 which specifies the "life" of 40 similar...
QUESTION 1 a) Consider the data of Table 1.1 which specifies the "life" of 40 similar car batteries recorded to the nearest tenth of a year. The batteries are guaranteed to last 3 years. Table 1.1 3.5 2.2 3.4 2.5 3.3 4.1 1.6 4.3 3.1 3.8 3.1 3.4 3.7 3.4 4.5 3.3 3.6 4.4 2.6 3.2 3.8 2.9 3.2 3.9 3.7 3.1 3.3 4.1 3.0 3.0 4.7 3.9 1.9 4.2 2.6 3.7 3.1 3.4 3.5 4.7 (i) Represent the above...
Parametirc test or not: Test statistic: p-value: decision: Is There A Difference Between the Means?
Parametirc test or not:Test statistic:p-value:decision:Is There A Difference Between the Means?6.7 6.2 3.1 310.3 10 5 5.56.9 5.5 3.3 3.110.5 6.3 4.3 5.44.5 4.6 1.8 25.6 5.6 2 2.65.9 6.1 2.1 2.58 11.7 4 4.68 7.4 3.3 3.15.8 5.2 3.1 2.96 7.3 3.0 3.28.7 5.3 2.7 36 5.5 2.1 2.27.2 6.3 3.5 3.25.9 4.6 2.9 3.46 7.4 3 3.37.2 7.8 3.7 3.48.6 9.4 5.1 5.77.2 8.1 2.8 3.15.8 5.4 2.2 1.83.3 4 1.7 1.86.8 5.1 2 1.83.7 3.5 2.2 2.112...
What fraction of the measurements are less than 5.1? What fraction of the measurements are larger...
What fraction of the measurements are less than 5.1?
What fraction of the measurements are larger than 3.6?
truct a relative frequency histogram for these 50 measurements 6.2 4.13.8 3.0 3.4 2.9 2.1 4.1 1.7 4.8 3.7. 3.6 5.5 2.1 2.75.1 1.0 3.8 5.7 3.7 2.7 3.8 4.8 2.4 3.8 3.3 4.2 2.46.0 3.0 4.6 2.8 3.2 4.8 2.5 3.8 4.7 4.0 4.6 3.9 3.4 4.3 4.5 5.1 3.6 4.0 4.2 1.6 4.8 5.7
Single data values (in hours): 3, 1, 4, 5, 5, 2, 2.5, 3.5, 4, 4.5, 0,...
Single data values (in hours): 3, 1, 4, 5, 5, 2, 2.5, 3.5, 4, 4.5, 0, 2, 2, 2.5, 3.5, 4, 4, 4, 4, 2, 3.5, 3.5, 2, 3, 4, 4, 3, 3, 3, 1 Paired data values: Athletes Non-athletes 3.7 2.5 3.1 4.1 4.2 4.2 4.2 4.2 3.4 3.0 3.7 3.8 2.1 2.1 3.5 2.7 3.6 1.8 4.0 2.0 2.9 3.6 3.2 3.9 2.9 2.6 3.5 2.8 3.6 3.1 3.4 3.5 2.9 3.5 3.9 3.6 2.8 2.9 3.1 2.7...
The following table shows the inflation rate and unemployment rate, both in percent, for the years...
The following table shows the inflation rate and unemployment rate, both in percent, for the years 1981-2008. We will investigate some methods for predicting unemployment. 4.4 X (L1) y (L2) Year Inflation Unemployment 1981 8.9 7.6 1982 3.8 9.7 1983 3.8 9.6 1984 3.9 7.5 1985 3.8 7.2 1986 1.1 7 1987 6.2 1988 4.4 5.5 1989 4.6 5.3 1990 6.1 5.6 1991 3.1 6.8 1992 2.9 7.5 1993 2.7 6.9 1994 2.7 6.1 1995 2.5 5.6 1996 5.4 1997...
Good Luck. (Need to show all your work to get full credit; no work, no credit)...
Good Luck. (Need to show all your work to get full credit; no work, no credit) 1.For the given sample data below: a Construct a frequency distribution using six classes for a sample data that includes. Class Limits (5 pts), Class Boundaries (6 pts), Frequency (3 pts), Relative frequency (3 pts), Cumulative Frequency (3 pts), Midpoint X.5 pts), f-x-(5 pts), f. (6 pts). b. For constructed grouped data find: mean (8 pts), mode for grouped data (2 pts), modal class...
MULTIPLE CHOICE. Choose the one al ternative that best compl etes the statement or answers the...
MULTIPLE CHOICE. Choose the one al ternative that best compl etes the statement or answers the question Find the mean of the data summarized in the given frequency distribution 1) The test scores of 40 students are summarized in thefrequency distribution below. Find the mean1) score Score Students 50- 59 60- 69 70- 79 80- 89 90-99 12 6 10 7 A) 74.5 B) 68.2 C) 64.6 D) 71.8 Find the median for the given sample data. 2) The normal...
Can you please show the structure of the ester and fill out an NMR analysis table...
Can you please show the structure of the ester and fill out an
NMR analysis table for the synthesis of banana based on the NMR
below? Could you also briefly explain your choice?
2. Banana
Acid: Acetic acid
Alcohol: Isoamyl alcohol
Structure of the ester:
Example of a’H-NMR analysis table: Hb Ho Labeled structure: Ha Há Ha Chemical Shift (ppm) Integration Splitting (n+1 rule) Structural Assignment (label of the corresponding proton) 1.8 ppm 3 3 Н. 3.1 ppm 2 4...
5.6 Year 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994...
5.6 Year 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 x (L1) y (L2) Inflation Unemployment 8.9 7.6 3.8 9.7 3.8 9.6 3.9 7.5 3.8 7.2 1.1 7 4.4 6.2 4.4 5.5 4.6 5.3 6.1 3.1 6.8 2.9 7.5 2.7 6.9 2.7 6.1 2.5 5.6 3.3 5.4 1.7 4.9 1.6 4.5 2.7 4.2 4 1.6 4.7 2.4 5.8 1.9 6...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross Domestic Product) for the U.S. economy for the last six quarters? Report those numbers in your submission 2. What is the average of those 6 quarters? . 3. Is the average of those growth rates above or below the long-run U.S. annual growth rate of 3.5 percent? Bureau of Economke Analysis Table 1.1.1. Percent Change From Preceding Period in Real Gross Domestic Product Percent...
QUESTION 1 a) Consider the data of Table 1.1 which specifies the "life" of 40 similar car batteries recorded to the nearest tenth of a year. The batteries are guaranteed to last 3 years. Table 1.1 3.5 2.2 3.4 2.5 3.3 4.1 1.6 4.3 3.1 3.8 3.1 3.4 3.7 3.4 4.5 3.3 3.6 4.4 2.6 3.2 3.8 2.9 3.2 3.9 3.7 3.1 3.3 4.1 3.0 3.0 4.7 3.9 1.9 4.2 2.6 3.7 3.1 3.4 3.5 4.7 (i) Represent the above...
What fraction of the measurements are less than 5.1?
What fraction of the measurements are larger than 3.6?
truct a relative frequency histogram for these 50 measurements 6.2 4.13.8 3.0 3.4 2.9 2.1 4.1 1.7 4.8 3.7. 3.6 5.5 2.1 2.75.1 1.0 3.8 5.7 3.7 2.7 3.8 4.8 2.4 3.8 3.3 4.2 2.46.0 3.0 4.6 2.8 3.2 4.8 2.5 3.8 4.7 4.0 4.6 3.9 3.4 4.3 4.5 5.1 3.6 4.0 4.2 1.6 4.8 5.7
The following table shows the inflation rate and unemployment rate, both in percent, for the years 1981-2008. We will investigate some methods for predicting unemployment. 4.4 X (L1) y (L2) Year Inflation Unemployment 1981 8.9 7.6 1982 3.8 9.7 1983 3.8 9.6 1984 3.9 7.5 1985 3.8 7.2 1986 1.1 7 1987 6.2 1988 4.4 5.5 1989 4.6 5.3 1990 6.1 5.6 1991 3.1 6.8 1992 2.9 7.5 1993 2.7 6.9 1994 2.7 6.1 1995 2.5 5.6 1996 5.4 1997...
Good Luck. (Need to show all your work to get full credit; no work, no credit) 1.For the given sample data below: a Construct a frequency distribution using six classes for a sample data that includes. Class Limits (5 pts), Class Boundaries (6 pts), Frequency (3 pts), Relative frequency (3 pts), Cumulative Frequency (3 pts), Midpoint X.5 pts), f-x-(5 pts), f. (6 pts). b. For constructed grouped data find: mean (8 pts), mode for grouped data (2 pts), modal class...
MULTIPLE CHOICE. Choose the one al ternative that best compl etes the statement or answers the question Find the mean of the data summarized in the given frequency distribution 1) The test scores of 40 students are summarized in thefrequency distribution below. Find the mean1) score Score Students 50- 59 60- 69 70- 79 80- 89 90-99 12 6 10 7 A) 74.5 B) 68.2 C) 64.6 D) 71.8 Find the median for the given sample data. 2) The normal...
Can you please show the structure of the ester and fill out an
NMR analysis table for the synthesis of banana based on the NMR
below? Could you also briefly explain your choice?
2. Banana
Acid: Acetic acid
Alcohol: Isoamyl alcohol
Structure of the ester:
Example of a’H-NMR analysis table: Hb Ho Labeled structure: Ha Há Ha Chemical Shift (ppm) Integration Splitting (n+1 rule) Structural Assignment (label of the corresponding proton) 1.8 ppm 3 3 Н. 3.1 ppm 2 4...
5.6 Year 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 x (L1) y (L2) Inflation Unemployment 8.9 7.6 3.8 9.7 3.8 9.6 3.9 7.5 3.8 7.2 1.1 7 4.4 6.2 4.4 5.5 4.6 5.3 6.1 3.1 6.8 2.9 7.5 2.7 6.9 2.7 6.1 2.5 5.6 3.3 5.4 1.7 4.9 1.6 4.5 2.7 4.2 4 1.6 4.7 2.4 5.8 1.9 6...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross Domestic Product) for the U.S. economy for the last six quarters? Report those numbers in your submission 2. What is the average of those 6 quarters? . 3. Is the average of those growth rates above or below the long-run U.S. annual growth rate of 3.5 percent? Bureau of Economke Analysis Table 1.1.1. Percent Change From Preceding Period in Real Gross Domestic Product Percent...
Most questions answered within 3 hours.
-
A $100,000 bond payable is issued on June 1, 20X1 at 106.
The bond comes due...
asked 2 minutes ago -
A 2.3 mm -diameter sphere is charged to -4.4 nC . An electron
fired directly at...
asked 5 minutes ago -
A rifle with a mass of 78 kg fires a bullet with a mass of 36...
asked 21 minutes ago -
Question 10
Applied Materials depreciates buildings and improvements over
useful lives of 5-50 years.
a.
True....
asked 41 minutes ago -
A 10.0 mL sample of 0.25 M NaOH(aq) is titrated with 40.0 mL of
0.10 M...
asked 42 minutes ago -
How
can we prove that a flow is incompressible if the velocity field is
known?
asked 44 minutes ago -
It is sometimes argued that understanding people's existing
activities does not really help to design future...
asked 47 minutes ago -
what is the angular velocity of tje moon in its orbut ( orbit
period is 28)?
asked 49 minutes ago -
Time Off At Superior Software Service
As she hangs up the telephone, Joan Jackson realizes that...
asked 52 minutes ago -
Use the sample data and confidence level given below to complete
parts (a) through (d).
A...
asked 54 minutes ago -
1. Consider a risky portfolio. The end-of-year cash flow derived
from the portfolio will be either...
asked 55 minutes ago -
Find the critical value(s) for the specified Wilcoxon
signed-rank test.
Sample size = 10, two-tailed test,...
asked 1 hour ago