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The download and upload speeds of a mobile data carrier is of great interest to both individual and business users. Fastest download speeds in Mbps for 100 cities in the United States are here: hbroadbandnow [dot] com/ fastest-cities
For the average download speed:
a. Calculate the mean, median, first quartile, and third quartile.
b. Calculate the range, interquartile range, variance, standard deviation, and coefficient of variation.
c. Construct a boxplot. Are the data skewed? If so, how?
d. What can you conclude about the download speeds for the various U. S. cities?
64% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan.
(a) Construct a 95% confidence interval for the proportion of U.S. adults for whom math was the favorite subject in school. (Give the answers to four decimal places.)
a the access code for a security system consists of five positions. the first position can be any letter 26 while each
A central university has a student population of 60,000. The university is interested in determining what proportion of them is in favour of a new grading system.
This question involves calculating a combination or a permutation. You must understand which is correct solution.
The Bureau of Labor Statistics in its Monthly Labor Review published the over per month percent change in the price index for imports from April 2006 to April 2007. Calculate the average percent change for the 9 months of 2006 and the 4 months of 2..
Identify the indicated values or interpret the given display. In a survey of 703 randomly selected workers,
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What IQ score represents the 98th percentile?
test the claim that the population of earthquakes has a mean magnitude greater than 1.00. use a 0.01 significance level
Randomly chosen people were observed for about 10 seconds in several public places, such as malls and restaurants, to see whether they smiled during that time.
In a normal distribution, what percentage of scores fall between -1 and +1 standard deviations from the mean?- Between the mean and -2 standard deviations ? Between the mean and +3 standard deviations?
Does the sample provide evidence conclude that the sample is significantly different from those of the general population? Use a two-tail test with a = 0.01.
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