According to the financial reports by Snapchat, the average daily user of Snapchat created 19 messages, or "snaps," per day in Q3 2017. A college student wants to find out if the number of Snapchat messages has changed since Q3 2017 and creates a random sample using information from students on her campus for the current semester, with the accompanying results. Complete parts a through c. 12 19 33 14 18 31 5 20 17 33 8 22 28 29 23 33 19 18 average anapchat user has not changed since Q3 2017. Determine the null and alternative hypotheses. H₂H H₁: p (Type integers or decimals. Do not round.) Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed.) OA OB. 4/2 OC. - Calculate the appropriate test statistic -0 (Round to two decimal places as needed.) State the conclusion. Ho. There 2118 7 sufficient evidence to conclude that the number of Snapchats sent by the average Snapchat user has b. Determine the precise p-value for this test using Excel The p-value is (Round to three decimal places as needed.) c. What assumptions need to be made to perform this analysis? Select all that apply. A The population is normally distributed. since Q3 2017.
According to the financial reports by Snapchat, the average daily user of Snapchat created 19 messages, or "snaps," per day in Q3 2017. A college student wants to find out if the number of Snapchat messages has changed since Q3 2017 and creates a random sample using information from students on her campus for the current semester, with the accompanying results. Complete parts a through c. 12 19 33 14 18 31 5 20 17 33 8 22 28 29 23 33 19 18 average anapchat user has not changed since Q3 2017. Determine the null and alternative hypotheses. H₂H H₁: p (Type integers or decimals. Do not round.) Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed.) OA OB. 4/2 OC. - Calculate the appropriate test statistic -0 (Round to two decimal places as needed.) State the conclusion. Ho. There 2118 7 sufficient evidence to conclude that the number of Snapchats sent by the average Snapchat user has b. Determine the precise p-value for this test using Excel The p-value is (Round to three decimal places as needed.) c. What assumptions need to be made to perform this analysis? Select all that apply. A The population is normally distributed. since Q3 2017.
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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Transcribed Image Text:According to the financial reports by Snapchat, the average daily user of
Snapchat created 19 messages, or "snaps," per day in Q3 2017. A
college student wants to find out if the number of Snapchat messages
has changed since Q3 2017 and creates a random sample using
information from students on her campus for the current semester, with
the accompanying results. Complete parts a through c.
12 19 33 14
18 31 5 20
17 33 8 22 28
29 23 33 19 18
average anapchat user has not changed since Q3 2017.
Determine the null and alternative hypotheses.
H₂H
H₁: p
(Type integers or decimals. Do not round.)
Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice.
(Round to three decimal places as needed.)
OA
OB. 4/2
OC. -
Calculate the appropriate test statistic
-0
(Round to two decimal places as needed.)
State the conclusion.
Ho. There
2118
7
sufficient evidence to conclude that the number of Snapchats sent by the average Snapchat user has
b. Determine the precise p-value for this test using Excel
The p-value is
(Round to three decimal places as needed.)
c. What assumptions need to be made to perform this analysis? Select all that apply.
A. The population is normally distributed.
B. The sample mean is large.
C. The population standard deviation is small
D. The sample is large.
E. No assumptions are necessary
since Q3 2017.
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