a. Calculate the test statistic. x² Round to two decimal places if necessary b. Determine the critical value(s) for the hypothesis test. c. Conclude whether to reject the null hypothesis or not based on the test statistic. Reject

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 5E
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Related questions
Question
A phone company plans on offering their new smartphone in four colours: white, black,
silver and rose gold. They anticipate that 30% of shoppers will prefer white, 35% will
prefer black, 20% will prefer silver and 15% will prefer rose gold. They perform market
research by asking a random sample of 350 potential customers which colour they
prefer.
Colour
Frequency
White
104
Chi Square ribution Table
Black
127
SAMSUNG
Can the company conclude that their expected distribution was accurate using a 1%
level of significance?
Silver
89
SUBMIT QUESTION
Rose Gold
ВО
SAVE PROGRESS
SUBMIT ASSIGNMENT
10:16 A
Transcribed Image Text:A phone company plans on offering their new smartphone in four colours: white, black, silver and rose gold. They anticipate that 30% of shoppers will prefer white, 35% will prefer black, 20% will prefer silver and 15% will prefer rose gold. They perform market research by asking a random sample of 350 potential customers which colour they prefer. Colour Frequency White 104 Chi Square ribution Table Black 127 SAMSUNG Can the company conclude that their expected distribution was accurate using a 1% level of significance? Silver 89 SUBMIT QUESTION Rose Gold ВО SAVE PROGRESS SUBMIT ASSIGNMENT 10:16 A
a. Calculate the test statistic.
x² =
Round to two decimal places if necessary
b. Determine the critical value(s) for the hypothesis test.
c. Conclude whether to reject the null hypothesis or not based on the test statistic.
Reject
L
O Search
SAMSUNG
SUBMIT QUESTION
SAVE PROGRESS
SUBMIT ASSIGNMENT
S&D
10:16
Transcribed Image Text:a. Calculate the test statistic. x² = Round to two decimal places if necessary b. Determine the critical value(s) for the hypothesis test. c. Conclude whether to reject the null hypothesis or not based on the test statistic. Reject L O Search SAMSUNG SUBMIT QUESTION SAVE PROGRESS SUBMIT ASSIGNMENT S&D 10:16
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