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5) Find the probability of making a Type I error in this test Describe, in the context of question (11), a Type I error. ii)

5) Find the probability of making a Type I error in this test Describe, in the context of question (11), a Type I error. ii)

MATLAB: An Introduction with Applications
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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(i) (ii) Find the probability of making a Type I error in this test. Describe, in the context of question (11), a Type I error.
Transcribed Image Text:(i) (ii) Find the probability of making a Type I error in this test. Describe, in the context of question (11), a Type I error.
Speedy Delivery Services claim to have a 90% at least satisfactory' rating. They hire a new delivery driver called Steve. After his first 1000 deliveries, a random sample of 25 of his deliveries is selected. Of these 25 deliveries, 24 are rated as 'at least satisfactory'. It is assumed that 90% of all deliveries of Speedy Delivery Services achieve an 'at least satisfactory' rating. ----- Test at the 10% level of significance whether Steve is achieving an 'at least satisfactory' rating on more than 90% of his deliveries.
Transcribed Image Text:Speedy Delivery Services claim to have a 90% at least satisfactory' rating. They hire a new delivery driver called Steve. After his first 1000 deliveries, a random sample of 25 of his deliveries is selected. Of these 25 deliveries, 24 are rated as 'at least satisfactory'. It is assumed that 90% of all deliveries of Speedy Delivery Services achieve an 'at least satisfactory' rating. ----- Test at the 10% level of significance whether Steve is achieving an 'at least satisfactory' rating on more than 90% of his deliveries.
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