Question: #13 In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random

#13 In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 110 from a pool of university students and asked whether they use Facebook on a regular base. Seventy replied yes. Assuming that the population proportion under the null hypothesis is 50%, what is the z-score for the sample proportion?

#4 To investigate the prevalence rate of Hypertension among US adults, we drew a random sample of 70 adults from the US and among them 10 people had hypertension. Please construct a 95% confidence interval for the population proportion of hypertension. Which one of the following results is the closest to your answer? (Hint: use 1.96 as the critical z-value).

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 100 from a pool of university students and...

In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 140 from a pool of university students and...

In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 130 from a pool of university students and...

In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 100 from a pool of university students and...

In One Sample Proportion test, it is important to convert the sample proportion to a zscore rst. In this example, we selected a random sample of size 100 from a pool of university students and asked...

In One Sample Proportion test, it is important to convert the sample proportion to a z score first. In this example, we selected a random sample of size 100 from a pool of university students and...

Econ 222: Economic and Business Statistics II Lecture 5 Introduction to Hypothesis Testing Hypothesis Testing Example The student union automatic coffee machine has been accused of filling cups with...

It is known that the population standard deviation of the IQ test results is 16. Assuming that we have a random sample of 144 and a sample mean of 90, what would be your 90% confidence interval...

Unit 3 Problem Set NAME: Elements of Statistics--FHSU Virtual College--Summer 2015 REMEMBER, these are assessed preparatory problems related to the content of Unit 3. The Unit 3 Exam will consist of...

On June 1, you borrowed $270,000 to buy a house. The mortgage rate is 5.1 percent. The loan is to be repaid in equal monthly payments over 15 years. The first payment is due on July 1. Assume that...

Tiger Company Limited's total assets are valued at $3,000,000 and currently 20% is financed by debt while 80% is from equity. The company hired a financial consultant to determine the optimal debt to...

The corporate charter of Kunkel Company authorized the issuance of 3 0 million, \ ( \ $ 1 \ ) par common shares. During 2 0 2 4 , its first year of operations, Kunkel had the following transactions:...

2023 1040 form 1.Phillip and Claire are married and file a joint return. Phillip is self-employed as a real estate agent, and Claire is a flight attendant. Phillip and Claire have three dependent...