Answer:
$0.013
0.010724
Explanation:
Given that :
Mean, m = 36500
Standard deviation, s = 5000
Refund of $1 per 100 mile short of 30,000 miles
A.) Expected cost of the promotion :
P(X < 30,000)
Using the Zscore relation :
Zscore = (x - m) / s
Zscore = (30000 - 36500) / 5000
= - 6500 / 5000
= - 1.3
100 miles = $1
1.3 / 100 = $0.013
b. What is the probability that Grear will refund more than $50 for a tire?
100 miles = $1
$50 = (100 * 50) = 5000 miles
Hence, more than $50 means x < (30000 - 5000) = x < 25000 miles
P(x < 25000) :
(25000 - 36500) / 5000
-11500 / 5000
= - 2.3
P(z < - 2.3) = 0.010724 (Z probability calculator)
Answer: b. movement along SRAS
Explanation:
When the price level changes due to an increase in the demand that forces the Aggregate demand curve to shift rightward, the immediate effect would be that the Aggregate demand curve would intersect the Short Run Aggregate supply at a new point.
This new point will see a movement <em>along </em>the SRAS from its previous equilibrium point to the new equilibrium intersection point with the AD curve. In other words, the new point will be on the same SRAS curve just moving from one point to another.
Helen’s Heating and Air (HHA) wants to encourage interest in their new smart refrigerators. They know that WidgetCo also sells smart refrigerators. HHA’s marketing manager creates the broad match keyword "refrigerator," and adds "WidgetCo" as a negative keyword. The two searches may prompt the ad are
- Smart refrigerator reviews
- Energy-efficient fridge
Explanation:
Since Helen’s Heating and Air has added “WidgetCo” as a negative keyword, the ad won’t be shown on any term that has that negative term anywhere in keyword.
When selecting negative keywords for search campaigns, we need to look for search terms that are similar to the used keywords, but they might show results in customers searching for a different product.
For a successful search campaigns, one should use broad match, phrase match, or exact match negative keywords.
