In a poll of 1500 adults in July 2010, 780 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below. 1. Find the value of the test statistic z. z = _____ (Round to two decimal places as needed.) 2. Find the value of the corresponding p-value for this test statistic z. p-value = _____ (Round to three decimal places
In a poll of 1500 adults in July 2010, 780 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below. 1. Find the value of the test statistic z. z = _____ (Round to two decimal places as needed.) 2. Find the value of the corresponding p-value for this test statistic z. p-value = _____ (Round to three decimal places
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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In a poll of 1500 adults in July 2010, 780 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below.
1. Find the value of the test statistic z.
z = _____ (Round to two decimal places as needed.)
2. Find the value of the corresponding p-value for this test statistic z.
p-value = _____ (Round to three decimal places as needed.)
3. Do you reject or not reject the null hypothesis?
4.
b. Choose the best interpretation of the results you obtained in part a.
Transcribed Image Text:In a poll of 1500 adults in July 2010, 780 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below.
'a- P+u.u
Find the value of the test statistic z.
E(Round to two decimal places as needed.)
z=
Find the value of the corresponding p-value for this test statistic z.
p-value =
(Round to three decimal places as needed.)
Do you reject or not reject the null hypothesis?
Do not reject Ho-
O Reject Ho-
b. Choose the best interpretation of the results you obtained in part a.
O A. The percentage of all adults who favor banning is not significantly more than 50%.
O B. The percentage of all adults who favor banning is significantly more than 50%.
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