Jump to level 1 A software company is interested in improving customer satisfaction rate from the 67% currently claimed. The company sponsored a survey of 155 customers and found that 115 oustomers were satisfied. What is the test statistic z? Ex 123

MATLAB: An Introduction with Applications
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zy Section 7.1 - MAT 240: Applied S X
Ô https://learn.zybooks.com/zybook/MAT-240-J4373-OL-TRAD-UG.22EW4/chapter/7/section/1
A e
y>MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion
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CHALLENGE
7.1.3: Hypothesis test for a population proportion.
ACTIVITY
367674 1891676.qr3zzy7
Jump to level 1
A software company is interested in improving customer satisfaction rate from the 67% currently claimed.
The company sponsored a survey of 155 customers and found that 115 oustomers were satisfied.
What is the test statistic z?
Ex: 1 23
Check
Ned
62°F
rarch
PriSc
Insert
F10
F11
D D-
Transcribed Image Text:zy Section 7.1 - MAT 240: Applied S X Ô https://learn.zybooks.com/zybook/MAT-240-J4373-OL-TRAD-UG.22EW4/chapter/7/section/1 A e y>MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion E zyBooks catalog Help/F Check Next Feedback? CHALLENGE 7.1.3: Hypothesis test for a population proportion. ACTIVITY 367674 1891676.qr3zzy7 Jump to level 1 A software company is interested in improving customer satisfaction rate from the 67% currently claimed. The company sponsored a survey of 155 customers and found that 115 oustomers were satisfied. What is the test statistic z? Ex: 1 23 Check Ned 62°F rarch PriSc Insert F10 F11 D D-
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