Calculate the population mean margin of error

Assignment Help Basic Statistics

Reference no: EM13111930

Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16. We wish to be 90% certain that we are within 8 IQ points of true mean. Find out the sample size.

Reference no: EM13111930

Questions Cloud

Determine required sample size to meet desired accuracy : Clinic evaluates that true population standard deviation is around $1,300. If confidence level is 95%, determine the required sample size in order to meet desired accuracy.

Fudge factor for passenger weights : Suppose you were a consultant who has been engaged by an airline company to estimate the 'fudge' factor for passenger's weights. Describe an experiment you would consider to estimate this 'fudge' factor. Discuss the statistical test you would cons..

What percentage of janes daughters will be color-blind : Red-green color blindness is a sex-linked recessive trait. Consider a woman, Jane, with red-green color blindness who has a mother with normal vision. Jane marries a man with normal vision.

Calculate the value of the concentration : The concentrations of lead in blood samples are often reported in units of micromoles of lead per liter of blood. Calculate the value of the concentration in these units of a blood sample containing 45 ppb lead.

Calculate the population mean margin of error : Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.

What are the predicted striping pattern phenotypes : In a certain species of fish, the genotype TT has three vertical stripes, the genotype tt has one vertical stripe, and the genotype Tt has two vertical stripes. What are the predicted striping pattern phenotypes and their frequencies in the follow..

Hypothesis testing for graduates : Assume that the population of hours worked per week by college graduates employed full-time is normally distributed with mean . Can we conclude that is greater than 40 hours? Use the .01 level of significance.

Compute the pe value in an acid mine water : What is the pE value in an acid mine water sample having [Fe3+] = 6.79E-3 M and [Fe2+] = 4.14E-4 M?

Tests of means and proportions : A company has established a goal of processing 95 percent of its orders on the same date of receipt. However, only 485 out of 500 orders were actually processed on the same day

User Account

All Pages