Question

In: Statistics and Probability

4. The following data set represent the percentage of gold from two different locations: Location A...

4. The following data set represent the percentage of gold from two different

locations:

Location A

23.6 22.4 18.9 29.8 22.7 25.4 17.5 14.2 29.4 26.1 24.1 22.3

Location B

5.0 6.1 2.3 2.1 7.8 9.2 4.1 2.5 4.2 9.9 1.0 1.2

b) Now consider the two locations as a single data set. What are the mean and the standard deviation of the gold percentage for this data set?

c) Using the empirical rule, determine what range of values captures the middle 68% of the data for the combined data set. Give the lower and upper limit of this range.

d) What is the actual percentage of data points that falls between these two values? Why is it different from your answer of part c?

Solutions

Expert Solution


Related Solutions

Options for company XYZ to set up production at different locations are provided below. Location Fixed...
Options for company XYZ to set up production at different locations are provided below. Location Fixed Costs Variable Costs A $60,000 $        5.00 B $50,000 $        7.00 C $70,000 $        2.50 Given the fixed and variable costs for different locations above, find the most suitable range of production for each of the following location: a. What is the most suitable production range for C? b. What is the most suitable production range for B? Note: format of answer would use terms such as...
The Janie Gioffre Drapery Company makes three types of draperies at two different locations. At location...
The Janie Gioffre Drapery Company makes three types of draperies at two different locations. At location I, it can make 10 pairs of deluxe drapes, 20 pairs of better drapes, and 13 pairs of standard drapes per day. At location II, it can make 20 pairs of deluxe, 50 pairs of better, and 6 pairs of standard per day. The company has orders for 3000 pairs of deluxe drapes, 6300 pairs of better drapes, and 1800 pairs of standard drapes....
Given a data set, which of the following is most likely to be the percentage of...
Given a data set, which of the following is most likely to be the percentage of data within four standard deviations of the mean? 94% 75% 95% 89% 2) If the mean of a data set is 5 and the data is said to be symmetric, then the median will be 3 5 1 7
Create a random data set consisting of two different samples, drawn from Census data that contains...
Create a random data set consisting of two different samples, drawn from Census data that contains numeric values - such as age. Show details of the sourcing. State the null and alternate hypothesis in words that apply to the topic you are addressing. Perform a two-sided, two-sample t-test. Explain what you are doing. Show the graph of the test will all features shown and labeled State the conclusion of the test and grounds.
below is a data set from citizens of two different countries. These citizens were asked to...
below is a data set from citizens of two different countries. These citizens were asked to rate the NHL (National Hockey League) from 1 to 10. Calculate the summary statistics to answer a - d. a. Which group seems to give more positive ratings? Calculate and report the summary statistics that''ll help you answer this question.   b. How much do citizens from the US vary in their ratings of the NHL? Calculate and report the summary statistics that would help...
A tolerance interval includes two percentage values. What do the two percentage values represent?
A tolerance interval includes two percentage values. What do the two percentage values represent?
The following data represent the 50 companies' percentage of revenues spent on research and development: 13.5...
The following data represent the 50 companies' percentage of revenues spent on research and development: 13.5 8.4   10.5   9.0 9.2   9.7   6.6   10.6   10.1   7.1 8.0   7.9   6.8   9.5   8.1 13.5   9.9   6.9    7.5    11.1 8.2   8.0   7.7 7.4   6.5 9.5   8.2 6.9   7.2   8.2 9.6   7.2   8.8 11.3   8.5 9.4   10.5   6.9   6.5    7.5 7.1   13.2   7.7   5.9   5.2 5.6   11.7   6.0   7.8    6.5 Construct a stem-and-leaf display.
The data below represent scores from three different therapies used to treat depressive symptoms. Scores represent...
The data below represent scores from three different therapies used to treat depressive symptoms. Scores represent depressive symptoms on a scale of 1-10, with higher scores indicating greater depressive symptoms. Treatment 1 Treatment 2 Treatment 3 0 1 4 0 4 3 G = 24 0 1 6 ΣX2 = 92 2       0        3       _______ T1 = 2 T2 = 6 T3 = 16 SS1 = 3 SS2 = 9 SS3 = 6 a.   SST is what? b.   SSW is...
The following data represent soil water content (percentage of water by volume) for independent random samples...
The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers. Soil water content from field I: x1; n1 = 72 15.1 11.3 10.1 10.8 16.6 8.3 9.1 12.3 9.1 14.3 10.7 16.1 10.2 15.2 8.9 9.5 9.6 11.3 14.0 11.3 15.6 11.2 13.8 9.0 8.4 8.2 12.0 13.9 11.6 16.0 9.6 11.4 8.4 8.0 14.1 10.9 13.2 13.8 14.6 10.2 11.5 13.1 14.7 12.5...
The following data represent soil water content (percentage of water by volume) for independent random samples...
The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers. Soil water content from field I: x1; n1 = 72 15.2 11.3 10.1 10.8 16.6 8.3 9.1 12.3 9.1 14.3 10.7 16.1 10.2 15.2 8.9 9.5 9.6 11.3 14.0 11.3 15.6 11.2 13.8 9.0 8.4 8.2 12.0 13.9 11.6 16.0 9.6 11.4 8.4 8.0 14.1 10.9 13.2 13.8 14.6 10.2 11.5 13.1 14.7 12.5...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT