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The temperature of an espresso drink, which is normally distributed , at a local coffee shop has a mean of 170 and a variance of 100. Given a random espressodrink, find
a. The probability the drink is less than 150degree
b.The probability the drink is between 160degree and 180degree.
c. The probability the drink is greater than 180degree.
You are planning to test a vaccine for a virus that has no vaccine. Since the disease is usually not serious, you will expose 100 volunteers to the virus. After some time, you will record whether or not each volunteer has been infected.
consider steam at 1600 psia and 1200 fahrenheit. determine the specific volume by using the principle of corresponding
A random variable is normally distributed with a mean of 25 and a standard deviation of 5. if an observation is randomly selected a distribution, what value will be exceeded 10% of the time?
A valid probability model
To determine the possible effect of a chemical treatment on the rate of seed germination, 300 chemically treated seeds and 250 untreated seeds were sown.
You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion.
the u.s. dairy industry wants to estimate the mean yearly milk consumption. a sample of 17 people reveals the mean
illustrate briefly how an experimental study is conducted. What is the difference between the two types of variables used.
For the primary independent variable, at least two research sources that discuss the variable also must be cited. These sources need not be technical documents but should contain evidence to justify the relationship between
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
a random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm. assuming that the
Find the 93% confidence interval of the true mean. If a day care center were starting up and wanted to keep tuition low, what would be a reasonable amount to charge?
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