Suppose we measured the blood pressure of 100 randomly selec…

Suppose we measured the blood pressure of 100 randomly selected patients in a hospital. Our aim is to evaluate which variable, age or gender, is associated with blood pressure. We record the patient’s age as 1 if their age is greater than 65, and 0 otherwise. Similarly, we record the patient’s gender as 1 if they are female, and 0 if they are male. The scatter plots below depict these associations. We obtained two F test statistics: 194.91 for comparing the average blood pressures among age groups, and 0.0221 for comparing the average blood pressures among gender groups. The cutoff  for an upper tail probability of 0.05 under an F distribution with df1=1 and df2=98 (=) is 3.938.  What is your conclusion? 

Subjects are asked to focus on a center point until a shape…

Subjects are asked to focus on a center point until a shape appears, and then name the shape. Before the shape appears, an arrow appears either pointing in the direction the shape will appear (valid), pointing in both directions (neutral), or pointing in the opposite direction from which the shape will appear (invalid). How would the subjects’ reaction time for naming the shape differ among these conditions?

BEST Electronics has 50,300 shares of 8%, $150 par value, cu…

BEST Electronics has 50,300 shares of 8%, $150 par value, cumulative preferred stock and 100,000 shares of $5 par value common stock outstanding. In 2024, BEST did not declare nor pay a dividend. In 2025, BEST declared and paid $3,700,000 of dividends. In 2025, what is the amount of dividends that the common stockholders will receive?    

UBER Technologies earned $900 million of pretax accounting i…

UBER Technologies earned $900 million of pretax accounting income for the year 2024. For the same period, UBER reported taxable income of $765 million. The company’s income tax rate is 25%. What is Income Tax Payable for the year 2024 (rounded, in millions)?