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Chapter 8: Q.86 (page 482)

How much area is in both tails (combined)?

Short Answer

Expert verified

The area of both tails is the same0.08or 8%.

Step by step solution

01

Introduction

The region of a two-dimensional locale, structure, or planar lamina inside the plane is the amount that communicates its degree. On the two-dimensional surface of a three-dimensional article, the degree is its analogue.

02

Explanation

The amount of significance is the area within the tail of a traditional curve. 1-level of confidence will be accustomed to calculating the amount of significance.

Assuming that the degree of confidence during this question is up to 92%, the amount of significance or area in both tails iscapable8% or 0.08.

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Most popular questions from this chapter

If it were later determined that it was important to be more than 90% confident and a new survey was commissioned, how would it affect the minimum number you need to survey? Why?

Suppose 250randomly selected people are surveyed to determine if they own a tablet. Of the 250surveyed, 98reported owning a tablet. Using a95% confidence level, compute a confidence interval estimate for the true proportion of people who own tablets

Suppose an internet marketing company wants to determine the current percentage of customers who click on ads on their smartphones. How many customers should the company survey in order to be % confident that the estimated proportion is within five percentage points of the true population proportion of customers who click on ads on their smartphones?

Identify the following:

a. x=_______

b. sx =_______

c. n =_______

d. n 鈥� 1 =_______

Refer back to the pizza-delivery Try It exercise. The population standard deviation is six minutes and the sample mean delivery time is 36minutes. Use a sample size of 20. Find a95% confidence interval estimate for the true mean pizza delivery time
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