Question

Last year, 20 percent of all teenagers purchased a new iPhone. This year, a sample of 260 randomly chosen teenagers showed that 39 had purchased a new iPhone. What is the conclusion of the hypothesis test that the percentage has decreased if the significance level is 0.05? Reject H0: The percentage has decreased Accept H0: The percentage has decreased Reject H0: The percentage has not decreased Accept H0: The percentage has not decreased

          Last year, 20 percent of all teenagers purchased a new iPhone. This year, a sample of 260 randomly chosen teenagers showed that 39 had purchased a new iPhone. What is the conclusion of the hypothesis test that the percentage has decreased if the significance level is 0.05?
Reject H0: The percentage has decreased
Accept H0: The percentage has decreased
Reject H0: The percentage has not decreased
Accept H0: The percentage has not decreased

Last year, 20 percent of all teenagers purchased a new iPhone. This year, a sample of 260 randomly chosen teenagers showed that 39 had purchased a new iPhone. What is the conclusion of the hypothesis test that the percentage has decreased if the significance level is 0.05?
Reject H0: The percentage has decreased
Accept H0: The percentage has decreased
Reject H0: The percentage has not decreased
Accept H0: The percentage has not decreased

Added by Michael B.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Adi S

06/17/2023

Step 1

H0: p = 0.20 (The percentage of teenagers who purchased a new iPhone has not decreased) H1: p < 0.20 (The percentage of teenagers who purchased a new iPhone has decreased) Show more…

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Last year, 20 percent of all teenagers purchased a new iPhone. This year, a sample of 260 randomly chosen teenagers showed that 39 had purchased a new iPhone. What is the conclusion of the hypothesis test that the percentage has decreased if the significance level is 0.05? Reject H0: The percentage has decreased Accept H0: The percentage has decreased Reject H0: The percentage has not decreased Accept H0: The percentage has not decreased