Asked Nov 13, 2019

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 68%. You would like to be 95% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required?


Expert Answer

Step 1

Thus, it is given that the confidence level is 95%. Therefore, the significance level, α = 0.05.

From the EXCEL, using the formula, = NORM.INV(0.95,0,1), the c...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: The 93 million Americans of age 50 and over control 50  percent of all discretionary income. AARP es...

A: Margin of error (E):The margin of error for sample mean is given by,


Q: A CBS News poll involved a nationwide random sample of 651 adults, asked those adults about their pa...

A:  (a)The value of P(affiliated with neither party) is,


Q: vision ads. How many ads of each type should be used? How many people will this reach? The Outdoor F...

A: Let us define, X1: The number of benches.X2: The number of picnic tables. From the given information...


Q: As you probably know, the Titantic, on its maiden voyage, hit an iceberg and sank in the matter of h...

A: Hello! As you have posted 7 sub parts, we are answering the first 3 sub-parts.  In case you require ...


Q: When taking a 24 question multiple choice test, where each question has five possible answers, it wo...

A: From the given information,


Q: #1. A firm has three investment alternatives. Pay offs are in thousands of dollars.                 ...

A: Given information:The table of investment with the probability of Economic Conditions is given below...


Q: USA Today reported that about 47% of the general consumer population in the United States is loyal t...

A: It is given that the population proportion is 47% and the level of significance is 0.01. 


Q: 13. Two Indiana state candidates must decide which city to visit the day before the November electio...

A: (a) The minimum values for each row are (-15, -10, -25, 10).The Republican candidate follows maxi-mi...


Q: Carla was curious if the bulk buy store in town really was cheaper than the store where she shops.  ...

A: The given table shows the price comparison between two stores.