The following data was entered into Excel to determine the linear regression equation for the number of purchases as a function of the number of website visits. As you can see, data was collected from the last 9 weeks. The intercept turned out to be -1,552 and the slope 0.0648. If the forecast for week 10's website visits is 48,000, then how many purchases can be expected in week 10? Visits

46,200

45,150

43,200

47,500

46,300

48,000

42,350

47,500

46,100

Purchases

1,400

1,325

1,300

1,650

1,300

1,575

1,200

1,500

1,500

A. Exactly 1,575

B. Approximately 1,550

C. Approximately 47,900

D. Exactly 48,000

Select the correct answer a research organization conducts certain chemical tests on samples. they have data available on the standard results. some of the samples give results outside the boundary of the standard results. which data mining method follows a similar approach? o a. data cleansing ob. network intrusion o c. fraud detection od. customer classification o e. deviation detection

Imagine you own an established startup with growing profits. you are looking for funding to greatly expand company operations. what method of financing would be best for you?

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i. e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i. e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.