May I please get help with the following homework questions? Thank you.

Question 13: A regression analysis between sales (in $1000) and price (in dollars) resulted in the following equation

= 60 - 8X

The above equation implies that an

1. increase of $1 in price is associated with a decrease of $8 in sales
2. increase of $8 in price is associated with an decrease of $52,000 in sales
3. increase of $1 in price is associated with a decrease of $52 in sales
4. increase of $1 in price is associated with a decrease of $8000 in sales

Question 14: Regression analysis was applied between sales (in $1000) and advertising (in $100) and the following regression function was obtained.

= 500 + 4 X

Based on the above estimated regression line if advertising is $10,000, then the point estimate for sales (in dollars) is

1. $900
2. $900,000
3. $40,500
4. $505,000

Question 15: If a hypothesis is rejected at 95% confidence, it

1. will not be rejected at 90% confidence
2. will also be rejected at 90% confidence
3. will sometimes be rejected at 90% confidence
4. None of these alternatives is correct.

Question 16: Which of the following doesnotneed to be known in order to compute the

p-value?

1. knowledge of whether the test is one-tailed or two-tailed
2. the value of the test statistic
3. the level of significance
4. None of these alternatives is correct.

Question 17: In the analysis of variance procedure (ANOVA), "factor" refers to

1. the dependent variable
2. the independent variable
3. the level of confidence
4. the critical value of F

Question 18: The level of significance is the

1. maximum allowable probability of Type II error
2. maximum allowable probability of Type I error
3. same as the confidence coefficient
4. same as thep-value