A company claims that only 4% of their products are defective. A random sample of 320 products is selected from a shipment of 8000 products and the proportion of defects is computed. What might you conclude about the company's claim that only 4% of their products are defective?

Q: In a certain population, the mean price of the stock prices was 230, the median was 262, the…

A:

Q: A regional government is interested in expanding the facilities of a day care center for mentally…

A: Given information: It is given that stratified sampling is used with people in the city using the…

Q: The Federal Pell Grant Program gives grants to low-income undergraduate students. According to the…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: A restaurant chain would like to measure the proportion of customers who are generally satisfied…

A: During a 1-week period, 147 customers were surveyed and 93% of them reported as being either…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: Claim: the proportion of college students who say they're interested in their district's election…

Q: sports psychologist tests a new coaching method and finds that of the 43 novice athletes who were…

A:

Q: A school is sending 15 children to a camp. If 30% of the children in the school are first graders,…

A: The question is about binomial distribution Given : Randomly selected no. of children ( n ) = 15…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Suppose that a recent report from the Current Population Survey (CPS) of the United States Census…

A: The question is about hypo. testing Given : Null and alt. hypo : H0 : p = 0.46 H1 : p > 0.46…

Q: A class of 5 students averaged 70% on a given test. A class of 9 students averaged 80% on the same…

A: Introduction: Suppose there are k groups numbered 1, 2, 3, …, k – 1, and k.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Probability of an event is the percentage of chances that the event will occur. The probability lies…

Q: A research study was conducted about gender differences in "sexting." The researcher believed that…

A: From the provided information,

Q: Step 2 of 3 :   Compute the value of the test statistic. Round your

A: claim :  the percentage of commercial truck drivers who suffer from sleep apnea is not 3.1%simple…

Q: A professor using an open-source introductory statistics book predicts that 60% of the students will…

A: given data, 60% - student will purchase a hard copy of the book,25%- will print it out from the…

Q: political analyst believes that a senator's recent decision to support a bill resul aim, he selects…

A: If the same subject is measured before and after conducting some treatments then the paired t-test…

Q: The national Park service monitors streams in Rainier national park for pollution and fish spawning…

A: Solution: Let A be the event that a stream polluted is 0.62 and B be the event that the streams in…

Q: The true proportion of voters in favor of a candidate is unknown. A random sample of 329 voters…

A: The point estimate of true population proportion of the voters who favor the candidate would be the…

Q: In the US, 45.1% of all people have type O blood, 39.6% have type A blood, 10.9% have type B blood…

A: H0: The distributions of blood types are the same between the general population and the…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: A) first of all we have to construct null and alternative hypotheses as followswe know that null…

Q: leep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…

A: The hypothesized proportion value (P) is 0.038.

Q: Customers of a restaurant have been complaining about food poisoning over the past week. A health…

A: Probability of the sample eggs tested positive for the salmonella bacterium(p)=0.23sample…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.