Determine the upper limit of the confidence interval

Reference no: EM13126380

A laboratory in Washington is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 90 healthy residents has a mean chloride level of 102 mEq/L. If it is known that the chloride levels in healthy individuals residing in Washington have a standard deviation of 43 mEq/L, find a 90% confidence interval for the true mean chloride level of all healthy Washington residents. What is the lower limit of the 90% confidence interval? what is the upper limit of the 90% confidence interval?

Reference no: EM13126380

Questions Cloud

Find correct decision for two-tailed hypothesis test : If the data produce a t statistic of t = 2.50, then which of the following is the correct decision for a two-tailed hypothesis test?

Idempotent ring : In a ring R, an idempotent is an element x ? R such that x * x = x (where * denotes the ring multiplication). Show that if R is an integral domain, then R has exactly two idempotent elements.

Calculation of deferred tax asset and liability at the end : Machinery was acquired in January for $300,000. Straight-line depreciation over a ten-year life (no salvage value) is used. For tax purposes, accelerated depreciation is used and Orkin may deduct 14% for 2012.

Explain how reliable is the perfect gas law in comparison : How reliable is the perfect gas law in comparison with the van der Waals equation? Calculate the difference in pressure of 10.00g of CO2 confined to a volume of 100cm3 at 25 degrees Celsius between treating it as a perfect gas and a van der Waals ..

Determine the upper limit of the confidence interval : True mean chloride level of all healthy Washington residents. What is the lower limit of the 90% confidence interval? what is the upper limit of the 90% confidence interval?

What are the major classifications of inventory : What are the major classifications of inventory? Why would someone choose to use a perpetual over a period inventory system, or vice versa?

Explain exact potential difference in the concentration cell : Exact potential difference in the concentration cell, What will be the exact potential difference in the following concentration cells?

License plate arrangements-combinations : Car license plates in California take the form of 1RTY345. If zero cannot be used in the first position and repeats are allowed in the other 6 positions, how many license plates are possible?

Changes in monetary policy : Prepare a analysis by answering the questions below. Be sure to cite your references using APA format.

User Account

All Pages