Q15 (6 points) Suppose a test using Al technology for diagnosing a certain serious disease is successful in detecting the serious disease in 99.7%% of all parson infected but that is incorrectly diagnoses 0.5% of all healthy people as having the serious disease. Suppose also that it incorrectly diagnoses 1.8% of all people having another minor disease as having the serious disease. It is known that 2% of the population have the serious disease, 90%% of the population are healthy, and 5% have the minor disease. Given the test is positive, what is the probability that selected has the serious disease? Use H to represent healthy, M to represent having minor disease, and D to represent having serious disoaseQuestion #14 [16 marks] York and York (YBY) Candy bar Manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 12 cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple regression on the data below: City Price Sales A goma 1.30 100 Barrie 1.60 90 wond wEng 1.80 85 Carleton 2.00 50 Dalton 2.40 38 Flora 2.70 28 Fairfield 1.25 110 GESDE 1.50 36 Hamilton 1.85 82 Keswick 2.05 47 La Tuque 2.45 35 Oakville 2.80 22 3. What is the response variable? b. Compute the coefficient of correlation. Interpret the value. C. Compute the coefficient of determination. Interpret the value. d. Construct the equation of least square regression line. e. Estimate the candy bar sales if the price is $2.20. Evaluate the estimation f. Estimate the candy bar sales if the price is $0.80. Evaluate the estimation g The actual candy bar sales is53 when the price is $2.20. Calculate the residual