A company called The Bear Necessities Business conducted a survey to gather customer feedback about a recent change they made. From the data collected, a 95% confidence interval was constructed to estimate the difference between the proportion of new customers who are positive about the change and the proportion of old customers who are positive about the change. The limits of this confidence interval are (-0.31, 0.49). Use this information to answer the following questions. The point estimate used for the confidence interval is a sample mean The sample proportion for new customers was sample proportion for old customers. [Select] interval are positive. [Select] the of the plausible differences given in the confidence Therefore, we [Select] claim that the proportion of customers who are positive about the change for new customers is higher than the proportion of are positive about the change for old customers.
A company called The Bear Necessities Business conducted a survey to gather customer feedback about a recent change they made. From the data collected, a 95% confidence interval was constructed to estimate the difference between the proportion of new customers who are positive about the change and the proportion of old customers who are positive about the change. The limits of this confidence interval are (-0.31, 0.49). Use this information to answer the following questions. The point estimate used for the confidence interval is a sample mean The sample proportion for new customers was sample proportion for old customers. [Select] interval are positive. [Select] the of the plausible differences given in the confidence Therefore, we [Select] claim that the proportion of customers who are positive about the change for new customers is higher than the proportion of are positive about the change for old customers.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Choose the correct option and proof the reason why you choose that one and give the evidences.
A company called The Bear Necessities Business conducted a survey to gather customer feedback about a recent change they made.
From the data collected, a 95% confidence interval was constructed to estimate the difference between the proportion of new customers who are positive about the change and the proportion of old customers who are positive about the change. The limits of this confidence interval are (-0.31, 0.49).
Use this information to answer the following questions.
The point estimate used for the confidence interval is a sample mean/sample porportion/different of two sample means/different of two sample proportion.
The sample proportion for new customers was the same as/higher than/ lower than he sample proportion for old customers.
Some but not all/All he sample proportion for old customers.
Therefore, we can not/can claim that the proportion of customers who are positive about the change for new customers is higher than the proportion of are positive about the change for old customers.
![A company called The Bear Necessities Business conducted a survey to gather
customer feedback about a recent change they made.
From the data collected, a 95% confidence interval was constructed to estimate
the difference between the proportion of new customers who are positive about
the change and the proportion of old customers who are positive about the
change. The limits of this confidence interval are (-0.31, 0.49).
Use this information to answer the following questions.
The point estimate used for the confidence interval is a
sample mean
The sample proportion for new customers was
sample proportion for old customers.
[Select]
interval are positive.
[Select]
the
of the plausible differences given in the confidence
Therefore, we
[Select]
claim that the proportion of customers
who are positive about the change for new customers is higher than the proportion
of are positive about the change for old customers.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F778df604-555e-471b-9bcb-62236fd27bf2%2Fa6b90008-dc25-48a1-82d4-182671d8057b%2Fysl6mni_processed.png&w=3840&q=75)
Transcribed Image Text:A company called The Bear Necessities Business conducted a survey to gather
customer feedback about a recent change they made.
From the data collected, a 95% confidence interval was constructed to estimate
the difference between the proportion of new customers who are positive about
the change and the proportion of old customers who are positive about the
change. The limits of this confidence interval are (-0.31, 0.49).
Use this information to answer the following questions.
The point estimate used for the confidence interval is a
sample mean
The sample proportion for new customers was
sample proportion for old customers.
[Select]
interval are positive.
[Select]
the
of the plausible differences given in the confidence
Therefore, we
[Select]
claim that the proportion of customers
who are positive about the change for new customers is higher than the proportion
of are positive about the change for old customers.
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