Neighborhoods

Prove: Let x and y be distinct real numbers Prove there is a neighborhood p of x and a neighborhood a of y such that p intersect q=empty set

Convergence

Show that {a sub n} infinity. Converges to A iff n=1 {a sub n - A}infinity. Converges to 0 n=1. .

Two or More Sample Hypothesis Testing : Graphs, Tables and Data Analysis

Implement raw data tables and computations, using both graphical and tabular methods of displaying data and results The US economy is in crisis brought on by the financial markets, the deep slump of the housing, high unemployment, and the slowdown of consumer spending. This has caused problems for buyers and sellers in the ...continues

Test statistic

I need help calculating a the value of a test statistic and then the p-value. See attached Hypothesis test for the difference of population means: Z test A study conducted by the research department of a pharmaceutical company claims that the annual spending (per person) for prescription drugs for allergy relief, , ...continues

Regression Models

4-16 Thirteen students entered the undergraduate business program at Rollins College two years ago. The following table indicates what their grade-point averages (GPAs) were after being in the program for two years and what each student scored on one part of the SAT exam when he or she was in high school. Is there a meaningful r ...continues

Z-test and p-value

Please see attached file. I just need to know what the test statistic is and the p-value. Hypothesis test for the difference of population means: Z test According to the historical data, the life expectancy in Germany is less than or equal to the life expectancy in the United States. A new study has been made to see whether ...continues

t-test

Please see attachment. I need help with the highlighted parts. Hypothesis test for the difference of population means: t test Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first gr ...continues

Degrees of freedom

How many degrees of freedom for the t-test in the attachment? Hypothesis test for the difference of population means: t test Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first gro ...continues

Hypothesis

Hypothesis test for the difference of population proportions For several decades, it was a common practice in Southern California for houses to be built with pools in the backyard (as any airplane flight which ends at a Southern California airport will reveal). Now, however, that practice may be changing, possibly because of t ...continues

ANOVA/F statistic

Please see attachment. ANOVA: Degrees of freedom and the F statistic Jointsoft is a great over-the-counter arthritis medication, but who will ever know about it? Unfortunately, many people with arthritis tend to be elderly and rather immobile, so advertisers of arthritis medications face limitations in ways to get their mes ...continues