Suppose that a poll taken 10 years ago found that 57% of parents spank their children. Suppose a recent poll of 300 adults with children finds that 146 indicated that they spank their children. Complete parts (a) and (b) below. (a) Assuming parents' attitude toward spanking has not changed since the original poll, how many of the 300 parents surveyed would be expected to spank their children? The expected amount of parents surveyed that would spank their children is (Round to the nearest whole number as needed.) (b) Do the results of the survey suggest that parents' attitude toward spanking may have changed since the original poll? Why? OA. No, 146 is inside the "usual" observation interval of this survey. O B. No, 146 is within one standard deviation of the expected amount of adults that spank their children. Oc. Yes, 146 is outside the "usual" observation interval of this survey. OD. Yes, 146 is less than the expected amount of adults that spank their children.

Suppose that a poll taken 10 years ago found that 57% of parents spank their children. Suppose a recent poll of 300 adults with children finds that 146 indicated that they spank their children. Complete parts (a) and (b) below. (a) Assuming parents' attitude toward spanking has not changed since the original poll, how many of the 300 parents surveyed would be expected to spank their children? The expected amount of parents surveyed that would spank their children is (Round to the nearest whole number as needed.) (b) Do the results of the survey suggest that parents' attitude toward spanking may have changed since the original poll? Why? OA. No, 146 is inside the "usual" observation interval of this survey. O B. No, 146 is within one standard deviation of the expected amount of adults that spank their children. Oc. Yes, 146 is outside the "usual" observation interval of this survey. OD. Yes, 146 is less than the expected amount of adults that spank their children.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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Suppose that a poll taken 10 years ago found that 57% of parents spank their children. Suppose a recent poll of 300 adults with children finds that 146 indicated that they spank their children. Complete parts (a) and (b) below.
(a) Assuming parents' attitude toward spanking has not changed since the original poll, how many of the 300 parents surveyed would be expected to spank their children?
The expected amount of parents surveyed that would spank their children is
(Round to the nearest whole number as needed.)
(b) Do the results of the survey suggest that parents' attitude toward spanking may have changed since the original poll? Why?
O A. No, 146 is inside the "usual" observation interval of this survey.
O B. No, 146 is within one standard deviation of the expected amount of adults that spank their children.
Oc. Yes, 146 is outside the "usual" observation interval of this survey.
OD. Yes, 146 is less than the expected amount
adults that spank their children.

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