Test for differences in variance

Assignment Help Basic Statistics

Reference no: EM13113641

Randomly selected statistics students were given five seconds to estimate the value of a product of numbers with a summary of the results of both groups given below. Does the order of the numbers appear to have an effect on the variances? Use a 0.05 significance level to test the difference between variances of the two samples. Use the traditional method to perform the test.

Order 1: Estimates from 40 Students Given: 1 X 2 X 3 X 4 X 5 X 6 X 7 X 8

n = 28 x-bar = 28,344.9 s = 5,667.9

Order 2: Estimates from 42 Students Given: 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1

n = 25 x-bar = 36,001.0 s = 7,679.4

Reference no: EM13113641

Questions Cloud

What is the weight in pounds of gallon of water : If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.

Determine probability that men is drinking coffee : All subjects in the study were questioned about lifestyle factors including alcohol, tea, and coffee consumption. The resulting data are as follows.

What would happen to the amount of blood in the ventricles : What would happen to the amount of blood in the ventricles at the end of diastole if diastolic duration becomes very short and what would this do to the pumping efficiency of the heart?

Identify the appropriate test and test the claim : At the 5% level do the data provide sufficient evidence to conclude that the mean time served for fraud is less than that for firearms offenses? Identify the appropriate test and test the claim using the traditional method at the 0.05 level of sig..

Test for differences in variance : Randomly selected statistics students were given five seconds to estimate the value of a product of numbers with a summary of the results of both groups given below.

What is the final pressure in the flask : The vapor pressure of br2(l) at 25C is 228 mm hg. if 2.00g of br2 is usedm what is the final pressure in the flask? will there be liquid in the flask.

Find the least-squares line : Find the least-squares line. The slope of this regression line is Fill in the Blank 01. Enter your answer exactly as given in the JMP output.

How much heat is produced in the reaction : When an outside plastic envelope is removed, O2 molecules penetrate the paper causing the reaction to begin. A Typical packet contains 250 grams of iron to warm your hands or feet for up to 4 hours.

Determine the mean square for treatments : Given this Analysis of Variance information for three treatments each with six observations.with SST =1116, SSE=1068, SSTotal =2184. What is the mean square for treatments?

User Account

All Pages