Suppose 6 of 15 students in a grade-school class develop influenza, whereas 20% of grade-school students nationwide develop influenza. Is there evidence of an excessive number of cases in the class? That is, what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds true?

Q: A company receives a shipment of 20 items. Because inspection of each individual item is expensive,…

A: It is given that, Total number of shipment received by the company is =20 The number of defective…

Q: 4) If a baseball player has a batting average of 0.5, what is the probability that the player will…

A: Given data: Batting average=0.5

Q: The risk of hepatoma  among alcoholics  without cirrhosis of the liver is 24%. Suppose we observe 8…

A:

Q: According to data from EKU, 85.14% of all EKU students were undergraduates in  Fall 2017. Suppose…

A: The sample size is 200 and the population proportion is 0.8514.

Q: 12) United Blood Services is a blood bank that serves more than 500 hospitals in 18 states.…

A: Probability of an event (E), i.e P(E)=Number of favorable cases for event ETotal possible cases We…

Q: 3. The defect rate for a laptop is 4%. Assuming the defects occur independently, what is the…

A:

Q: An insurance company needs to develop a new bankruptcy policy in a new city. It was observed an…

A:

Q: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A: Given Information: 70% of all eligible voters will vote in the next presidential election i.e., p =…

Q: A new drug is designed to reduce a person's blood pressure. Thirteen randomly selected hypertensive…

A: Given that, Number of hypertensive patients who receive the new drug n=13 Probability that a…

Q: 2. Some cells types in a tissue represent only a very small portion of total cell population, such…

A: given that

Q: Suppose two dice are rolled 3000 times and the sum of 11 occurs 120 times. What is the empirical…

A: Let A be the event such that sum on the dice is 11 Here we will use the formula Empirical…

Q: Dr. Threpio has developed a new procedure that he believes can correct a life-threatening medical…

A: Given that  Dr. Threpio has developed a new procedure that he believes can correct a…

Q: If 10 percent of the balls in a certain box are red, and if 20 balls are selected from the box at…

A:

Q: traveler wanted to avoid detection at customs. He placed 5 narcotic tablets together with 9 vitamin…

A:

Q: The risk of a hematoma among alcoholics without cirrhosis of the liver is 24%. Suppose we observe 7…

A:

Q: In a study of 460,112 cell phone users, it was found that 104 developed cancer of the brain or…

A:

Q: In a study of 320,354 cell phone users, it was found that 34 developed cancer of the brain or…

A: Given p - probability of cancer =0.000142n = sample isze =320354

Q: 4. Suppose a clothing store owner is analyzing store traffic. They find that female customers arrive…

A: Suppose a clothing store owner is analyzing store traffic. They find that female customers arrive…

Q: A certain disease affects about 1 out of 10, 000 people. There is a test to check whether the person…

A:

Q: time. If a person tests positive for the virus, what is the probability that the person actually has…

A: Define events ,  V = person has virus  V' = person  has not virus T = test positive  T' = test…

Q: Suppose that the average number of typos on a page of a manuscript is 6.93.  What is the probability…

A: Given that,The average number of typos on a page of a manuscript is 6.93