In a grathering of 40 people there are 5 people over the age of 18. Apart from this, there are boys and girls under the age of 18. There are 20 boys with the mean age of 15 and 15 girls with the mean...

In a grathering of 40 people there are 5 people over the age of 18. Apart from this, there are boys and girls under the age of 18. There are 20 boys with the mean age of 15 and 15 girls with the mean...

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time - agesample mean: 95.61 ...

Solve the following problems. Write the formula, give, solution and final answer.

scored 168 on the Verbal Reasoning section and 161 on the Quantitative Reasoning section. verbal reasoning mean score, 153, standard deviation, 8 quantitative reasoning mean score, 148,...

-- The amount of cereal that can be poured into a small bowl varies with a mean of 1.5 ounces and a standard deviation of 0.3 ounces. A large bowl holds a mean of 2.5 ounces with a standard deviation...

A class of 30 students has 15 males and 15 females. All 30 names are put into a hat, a name is pulled and replaced into the hat, and the process is repeated. It is possible for the same person to...

You measure 37 textbooks' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 5.8 ounces. Based on this, construct a 90% confidence interval for the...

Tom and Jan are planning on applying to attend KSU. Tom takes the ACT while Jan decides to take the SAT. The mean score on the ACT is a 17 with a standard deviation of 5, and the SAT mean score is...

A corporation must appoint a president, cheif exectuive officer (CEO), cheif operating officer (COO), and cheif financial officer (CFO). It must also appoint a planning committee with five different...

Assume that a procedure yields a binomial distribution with 2 trials and a probability of success of 0.50. Use a binomial probability table to find the probability that the number of successes is...

In a test of the effectiveness of garlic for lowering cholesterol, 48 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment...

find the first and third quartiles for numbers 26,70,37,47,31,45,43,42,44,48,35

i need help on this problem. It's for statistics

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At a factory that produces pistons for cars, Machine 1 produced 606 satisfactory pistons and 404 unsatisfactory pistons today. Machine 2 produced 880 satisfactory pistons...

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 175.6-cm and a standard deviation of 1-cm. Find the probability that the length of a randomly...

Many of the variables measured in medical tests – blood pressure, triglyceride level, etc. – are approximately normally distributed for the majority of the population in the United States...

Many of the variables measured in medical tests – blood pressure, triglyceride level, etc. – are approximately normally distributed for the majority of the population in the United States...

The authors of the paper "Fudging the Numbers: Distributing Chocolate Influences Student Evaluations of an Undergraduate Course"† carried out a study to see if events unrelated to an undergraduate...