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Among 9 electrical components exactly one is known not to function properly. If 3 components are randomly selected, find the probability that all selected components function properly.
Suggest two methods for positively identifying carbon dioxide released in anaerobic respiration?
an aerosol spray can with a volume of 270 ml contains 3.2 g of propane gas propellant. what is the pressure in the can at 20 c.
For each of the following items, give an example of a business transaction that has the described effect on the accounting equation:
In maize the genes Pl for purple leaves (dominant over green leaves); sm for salmon silk ( recessive for yellow silk) and py for pigmy plant (recessive to normal size) are on chromosome 6 at positions 45, 55 and 65 respectively. Predict the propor..
Assuming a 30-day period in November, calculate November's interest. Also, calculate the interest Nancy would have paid with: a) the previous balance method, b) the adjusted balance method.
The survey reported that 31% of the respondents feel they have to save more for retirement to make up for what they lost. Develop a 95% confidence interval for the population proportion.
strain of flies carrying the dominant eye mutation Lobe on the second chromosome was crossed with a strain homozygous for the second chromosome recessive mutations smooth abdomen and straw body.
if you used 8900 kilojoules you expend in energy in one day to heat 49000g of water at 19 C what would be the rise in temperature.
If standard deviation is 10 units per week, lead time is 2 weeks, demand is 50 per week, lot size is lot - for - lot, and desired service level is 97.72%, what is the statistical reorder point?
Discuss and explain situations where OSHA would be able to enter and inspect a worksite without obtaining a warrant or the employer's express consent.
Last year, there were 30,000 students at a university; their GPA had a mean of 2.9 and an SD of 0.6. This year, in a simple random sample of 100 students taken from this university, the GPAs have a mean of 2.95 and an SD of 0.55. Has the mean GPA ..
Automobiles arrive at the drive-through window at a post office at the rate of 4 every 10 minutes. The average service time is 2 minutes. the Poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.
Determine the probability, using binomial distribution, of obtaining 4 or more nonconforming units when sampling 30 computers from batch known to be 10% nonconforming.
What is the difference between dependent and independent samples? Discuss differences is statistical treatment, statistical power, and data management.
It was thought that the national average price per pound for Ospertan Basil Oil in 1999 in the US was $14 per pound. Since that time the Ospertan Basil Oil Cartel (OBOC) has tried to limit the supply of Ospertan Basil Oil reaching the U.S in order..
In a sample of 88 children selected randomly from one town, it is found that 8 of them suffer from asthma. Find the P value for a test of the claim that the proportion of all children in the town who suffer from asthma is equal to 11%.
A biologist with the Department of Agriculture is studying the growth of artichokes. She knows that the number of artichokes produced by each plant follows a distribution which is approximately normal.
Using a 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?
In the belief that Statistics is too hard, a student claims that the mean score on a final exam is less then 70. 15 scores will be chosen at random to test this claim.
The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. Compute the probability that the steel mill will produce more than 150 metric tons next week.
State the decision rule. Compute the pooled estimate of the population varaince. Compute the test statistic
What is the probability that no requests for assistance are in the system? What is the average number of requests that will be waiting for service? What is the average waiting time in minutes before service begins?
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