Blog

In 2006, the GSS asked male and female participants if they had a great deal of confidence, only some confidence or hardly any confidence in present day medical institutions. At the 0.05 level of significance, if the p-value for the Chi Square Test of Independence equals 0.0724, what is the correct decision?

SAT Scores: The following table presents the number of years of study in English and Language Arts and the average SAT Writing Score for students who took the SAT Exam.   Yrs of Study     0.5     1.0     2.0     3.0    4.0 SAT Score      419      444      463     456     498 Based on the p-value obtained and a significance level of 0.03, we can statistically conclude that the number of years of studying English and Language Arts is a useful predictor of mean SAT score achieved as a result.

Use the graph to find the indicated function value.y = f(x). Find f(-2)

Write the number in scientific notation.A computer compiles a program in 0.000857 seconds.

Graph the linear functiony = 2x + 5

Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers. – 3 – 6

Evaluate the function.Find h(3) when h(x) = 3×2 + 4x + 6

Decide whether the relation defines a function.{(-5, -2), (-3, -3), (2, 7), (2, 5)}

Find one factor of the polynomial.8t2 – t – 195

Graph the linear functionf(x)= -5