use iMessage while the other half only use What's App. For the individuals who only used iMessage, they sent an average of 280 messages with a sample variance of 170 in the past week. For the individuals who only used What's App, they sent an average of 295 messages with a sample variance of 182 in the past week. Determine if there is a significant difference between the average messages sent between the two groups of individuals. Use a significance level of 1%. What is the alternative hypothesis? Group of answer choices A. The iMessage group on average sent more messages than the What's App group. B. There is a difference in the average number of messages sent between the two groups. C. The iMessage group on average sent less messages than the What's App group. D. There is no difference in the average number of messages sent between the two groups
use iMessage while the other half only use What's App. For the individuals who only used iMessage, they sent an average of 280 messages with a sample variance of 170 in the past week. For the individuals who only used What's App, they sent an average of 295 messages with a sample variance of 182 in the past week. Determine if there is a significant difference between the average messages sent between the two groups of individuals. Use a significance level of 1%. What is the alternative hypothesis? Group of answer choices A. The iMessage group on average sent more messages than the What's App group. B. There is a difference in the average number of messages sent between the two groups. C. The iMessage group on average sent less messages than the What's App group. D. There is no difference in the average number of messages sent between the two groups
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A researcher wants to study different messaging platforms by collecting data on 40 individuals. Half of the individuals only use iMessage while the other half only use What's App. For the individuals who only used iMessage, they sent an average of 280 messages with a sample variance of 170 in the past week. For the individuals who only used What's App, they sent an average of 295 messages with a sample variance of 182 in the past week. Determine if there is a significant difference between the average messages sent between the two groups of individuals. Use a significance level of 1%.
What is the alternative hypothesis?
Group of answer choices
A. The iMessage group on average sent more messages than the What's App group.
B. There is a difference in the average number of messages sent between the two groups.
C. The iMessage group on average sent less messages than the What's App group.
D. There is no difference in the average number of messages sent between the two groups.
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