Find confidence interval estimate for the population mean

Assignment Help Basic Statistics
Reference no: EM13113966

A survey of 30 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the populaiton is 0.8 year, find the 99% confidence interval estimate for the population mean.

Reference no: EM13113966

Questions Cloud

Consider a mainland-island migration scenario : What are P(island) and P(mainland)? Assume very large population sizes, no inbreeding, and the other assumptions of H-W equilibrium in order to determine the allele frequencies. Also assume that p is greater than or equal to q.
Explain the forces toward convergence in labour systems : Explain What are the forces toward Convergence in labour systems around the world? What are the forces against convergence? What do you predict the system will be like in 10 years?
Define humans as belonging to the phylum chordata : what are the characteristics that define humans as belonging to the phylum Chordata? How do these characteristics change after the embryonic stage of growth?
What is the osmotic pressure of a solution : What is the osmotic pressure of a solution formed by dissolving 44.4mg of aspirin C9H8O4 in 0.355 L of water at 25 degress C.
Find confidence interval estimate for the population mean : A survey of 30 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the populaiton is 0.8 year, find the 99% confidence interval estimate for the population mean.
What proportion of their daughters would be expected : Red-green color blindness is a sex-linked trait. If a husband and wife (whose father was color blind) both have normal color vision, what proportion of their daughters would be expected to have red-green color blindness? Explain your answer.
Explain how did kodak adjust its marketing mix in russia : Explain how did Kodak adjust its marketing mix in Russia to match local requirements? Do you think this was the right thing to do? ow did Kodak adjust its marketing mix in Russia to match local requirements? Do you think this was the right thing ..
How many kilograms of alcohol are in mouthwash : If each bottle contains 0.358 pint of mouthwash with a density of 0.880g/mL , how many kilograms of alcohol are in 200 bottles of the mouthwash.
Unusual result of testing claims : A candy company claims that 92% of consumers like their candies. To test this claim, 9571 people are selected at random from those who have eaten the company's candies.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistical analysis-decision rule and p-value

The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The standard deviation of the mileage is 5,000 miles.

  Recent study of incomes in allegheny county

In a recent study of incomes in Allegheny county in Pennsylvania it was found that distribution of family incomes is skew to the right. what can we say about the relationship between mean and median?

  Continental airlines confidence intervals

The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003).

  Determine measures of central tendency

Compute the mean, median, and mode. Which of these measures of central tendency do you think most accurately describes the lifestyle variable you are looking at?

  Non parametric test-mann whitney wilcoxon test

Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?

  Variance in the cognitive scores

Does the regression equation account for a significant portion of the variance in the cognitive scores? Use a=.05 to evaluate the F-ratio.

  Determining probability that tire wears out

Determine the probability that tire wears out before 70,000 miles?

  Probability that cigar-smoking businessmen is republican

If p(s/d)=30 % of the Democrats smoke cigars, and p(s/d')=50% of Republicans smoke cigars also. What is the probability that a cigar- smoking businessmen is a Republican?

  Incarceration rate in one nation prisons

The incarceration rate in one nation's prisons was 965 per 100,000 male residents, and 65 per 100,000 female residents.

  Example on logistic regression model

Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..

  Probability regarding sample space of an experiment

Let S = {c, h, j, q, t, y} be a sample space of an experiment and let E = {c, h}, F = {c, q, y}, and G = {h, j, t} be events of this experiment. (Enter your answers using roster notation. Enter Ø for the empty set.)

  Chance of selecting a sample whose sample mean is larger

A power of 0.2203 can be interpreted to mean there is a 22.03% chance of selecting a sample whose sample mean is larger than 166.3 lb.

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