Write the null and alternative hypothesis of each number. The answer is already on the blanks for reference as some of the alternative hypothesis is wrong.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Write the null and alternative hypothesis of each number. The answer is already on the blanks for reference as some of the alternative hypothesis is wrong.

4. Before the national elections, 75% of the voters in a certain town said that they
preferred older senatorial candidates running for senatorial positions than younger candidates. After a
certain survey was conducted, 910 out of 1,300 randomly selected voters preferred older senatorial
candidates. Does this claim indicate that voters in that town have a greater interest in older candidates than
in younger ones? Use a = 0.05.
Ho: p = 0.75
Ha: p > 0.75
Ha: p0.55 5. A researcher claimed that 55% of elementary students in Alaminos City
Division would rather play than read books during break time. Another researcher was assigned to verify
the claim. He randomly selected 300 students. Two hundred seventy-four (274) of them said they would
rather play during break time than read books. At 0.10 level, is there enough evidence to conclude that the
percentage of elementary students who would rather play than read books has changed to 55%?
Ho: p = 0.55
Ha: p < 0.55
Transcribed Image Text:4. Before the national elections, 75% of the voters in a certain town said that they preferred older senatorial candidates running for senatorial positions than younger candidates. After a certain survey was conducted, 910 out of 1,300 randomly selected voters preferred older senatorial candidates. Does this claim indicate that voters in that town have a greater interest in older candidates than in younger ones? Use a = 0.05. Ho: p = 0.75 Ha: p > 0.75 Ha: p0.55 5. A researcher claimed that 55% of elementary students in Alaminos City Division would rather play than read books during break time. Another researcher was assigned to verify the claim. He randomly selected 300 students. Two hundred seventy-four (274) of them said they would rather play during break time than read books. At 0.10 level, is there enough evidence to conclude that the percentage of elementary students who would rather play than read books has changed to 55%? Ho: p = 0.55 Ha: p < 0.55
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