Continous probability distribution

Assignment Help Basic Statistics
Reference no: EM13103726

A sample of 81 observations is taken from a normal population. The sample mean is 40, and the sample standard deviation is 5. Determine the 95 percent confidence interval for the population mean.

Reference no: EM13103726

Questions Cloud

Determining probability and rv : An elevator starts at the basement with 8 people (not including the elevator operator) and discharges them all by the time it reaches the top floor, number 6.
Apprise the irs of the unauthorized tax return : Able Ann Reddy CPA prepared Mr. Smith's tax return last year as well as appropriately signed the preparer's declaration. Several months later Able learned that Mr. Smith improperly altered several figures
Communication takes between managers at the top : As per to Fayol the greater the number of levels in management hierarchy the communication takes between managers at the top
Population-proportion of administrative professionals : Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Continous probability distribution : A sample of 81 observations is taken from a normal population. The sample mean is 40, and the sample standard deviation is 5. Determine the 95 percent confidence interval for the population mean.
Additional charges to redeem point or miles : Construct a 95% confidence interval estimate for the population proportion of airline travelers who think that the airline fee that is most unreasonable is additional charges to redeem point/miles.
Deliberate your opinion of michael porter''s generic : Deliberate your opinion of Michael Porter's generic strategies as well as when you might utilize them in your business.
Drawing fuses out of box : A box contains ten fuses of which 3 are defective. Two fuses are selected at random from the box without replacement. What is the probability that exactly one of the fuses selected is defective?
Describe whether it makes a difference if an employee : Describe whether it makes a difference if an employee is in an open area or in an enclosed office.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Mean score for the exam

If the lowest score you can earn and still be eligible for employment is an 84, what is the mean score for the exam? Round your answer to the nearest tenth.

  Using a level of significance-population mean weight

Using a level of significance of .10, is there evidence that the population mean weight of the candy bars is greater than 7.3? Fully explain your answer.

  Employee satisfaction survey

You're designing a survey to assess employee satisfaction. Provide a question that will produce: Develop five demographic questions to measure gender, age, years of experience, level of education, and ethnicity.

  Among appropriate statistical certainty which the proportion

To find out the proportion of the population of likely voters who agree the statement. Could we say among appropriate statistical certainty which the proportion of the population of likely voters.

  Maximum probability of a bulb lasting less

The probability of a bulb lasting less than 2300 is .1573. The maximum probability of a bulb lasting less than 2300 hours should be only 5%. What must change specifically? How would that change be obtained practically?

  Probability-random selection for marbles

A bag contains 4 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly selected from the bag, what is the probability that it is blue?

  Test the claim that tutoring has an effect on math scores

Using a 0.01 level of significance, test the claim that the tutoring has an effect on the math scores.

  Difference in the mean number and p-value

At the .01 significance level, is there a difference in the mean number of times men and Women order take-out dinners in a month? What is the  p -value?

  Probability-fatal accident

Suppose that the probability is 1 in 3,900,000 that a single auto trip in the U.S. would result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips.

  What was the mean height for both groups

In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together?

  Concept of normal probability distribution

The mean of a normal probability distribution is 60; the standard deviation is 5.

  Mean of the sample of a sampling distribution

Egyptians watch an average of 2.5 hours of television per person per day. If the standard deviation for the number of hours of television watched per day is 1.6 and a random sample of 225 Egyptians is selected, the mean of this sample belongs to a..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd