A population of components when testing high laboratory stresses fails according to a lognormal distribution with T50 = 5000 and σ = 0.7. What percentage of failures are expected at 2000 hours of testing?

Solve it in Minitab

10) LIST AT LEAST 3 CONCRETE ADMIXTURES THAT HAVE BEEN DEVELOPED IN THIS CENTURY (2000-2020), AND EXPLAIN:

a) Use or Application

b) Typical Dosage

c) Advantages

d) Disadvantages

type please

Respond to the following in a minimum of 175 words:

Can government intervention in markets sometimes make the situation worse? Provide examples in your response. For example, consider the progress of the economy of Venezuela since 2000.

The average per Growth Rates of Real, per capita GDP between 2000 and 2008 in Low-income and Middle-income countries where 4.7% and 6.1% respectively. This observation is consistent with the Convergence hypothesis.

in the second half of the 20th century, the city of phoenix, Arizona exploded in size. between 1990 and 2000 the population of phoenix increased exponentially. in 1990 the population was 928,000 people, and in 2000. the population was 1,377,000.

a) what is the 1 decade (10 year) growth factor for the population of phoenix since 1990?

b) write a function f(d), that determines the population of phoenix in terms of the number of decades, d, that have elapsed since the beginning of 1990.

c) what Is the 5-year growth factor for the population of phoenix since 1990?

d) write a function g(x), that determines the population of phoenix in terms of the number of 5-year periods, x, that have elapsed since the beginning of 1990

A metallurgist has invented a new tungsten alloy for use in the filaments of light bulbs that is supposed to burn brighter with the use of less energy. A company investigates the potential costs of producing the new type of bulb and decides that production would be economically feasible if the bulbs would last an average of longer than 2000 hours in continuous usage. Twenty-five of the new bulbs are tested and found to last an average of 2240 hours with a standard deviation of 600 hours. Is this strong evidence that the average life of all such bulbs is higher than 2000 hours? Translate this into a statistical hypothesis-testing problem and carry out the test. Be sure to give the null and alternative hypotheses, the value of the test statistic, the p-value, and your conclusions.

Find the average, median and mode income of the residents Find interquartile range Find the mean deviation from the mean and median

The following data on income of residents generated from County X

(17.1) The psychology of terrorism According to the Global Terrorism Index, terror-related death have increased nearly 10 times since 2000. http://www.economicsandpeace.org/wp-content/uploads/2015/11/2015-Global-Terrorism-Index-Report.pdf While there was 3.329 recorded acts of terror in 2000 we have seen 32,685 in 2014. It makes you stop and ask questions - like: 1. How can extremist groups treat fellow human beings with such cruelty? 2. Why do their barbaric brands of violence appeal to young people around the globe? 3. Who are their recruits, and what are they thinking when they target innocent lives (sub question is are those recruits mentally ill)?