ACTIVITY Formulate a Null Hypothesis and Alternative Hypothesis for each of the following and write them in symbols. 1. The mean performance of all grade 11 leavers of a school in the NAT is 35. 2. Only 34% of people who try to quit smoking succeed. A company claims that using their chewing gum can help people quit. 3. The school principal wants to test if it is true what teachers say that junior high school learners use the computer of the school in an average of 3.2 hours a day. 4. LTO claimed that 88% of candidates pass driving test, but a newspaper claims that this rate is lower than the reported value. 5. A Mayor's disapproval rating is below 30% of the respondents.
ACTIVITY Formulate a Null Hypothesis and Alternative Hypothesis for each of the following and write them in symbols. 1. The mean performance of all grade 11 leavers of a school in the NAT is 35. 2. Only 34% of people who try to quit smoking succeed. A company claims that using their chewing gum can help people quit. 3. The school principal wants to test if it is true what teachers say that junior high school learners use the computer of the school in an average of 3.2 hours a day. 4. LTO claimed that 88% of candidates pass driving test, but a newspaper claims that this rate is lower than the reported value. 5. A Mayor's disapproval rating is below 30% of the respondents.
Chapter6: Systems Of Equations And Inequalities
Section: Chapter Questions
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Please answer the questions with the same format as the examples. Thank you.
Transcribed Image Text:EXAMPLE
Formulating Hypothesis Statements
1. Do female students' study, on average, more than male students do?
Null Hypothesis (H): On average, women do not study more than men do.
Alternative Hypothesis (H,): On average, women do study more than men do.
2. Are Side Effects Experienced by Fewer than 205 of
3. The average TV viewing time of all five – year old
children in the province is more than 4 hours daily.
Patients?
Pharmaceutical company wants to claim that the
proportion of patients who experience side effects is less
Null Hypothesis (H,): The average viewing time of all
five- year old children in the
province is equal to 4 hours daily.
than 20%.
(The claim that the company hopes to prove is used as
the alternative hypothesis.)
In Symbol: Hp: µ = 4
Null Hypothesis (H,): 20% (or more) of users will
experience side effects.
Alternative Hypothesis (H.): The average viewing time
In Symbol: Ho: p 20%;
Alternative Hypothesis (H.): Fewer than 20% of
of all five- year old children in the
province is more than 4 hours
daily.
users will experience side effects.
In Symbol: H.: µ > 4
In Symbol: H.: p< 20%
Note: We use p since the parameter is proportion.
Note: We use u since the parameter is average.
Transcribed Image Text:АCTIVITY
Formulate a Null Hypothesis and Alternative Hypothesis for each of the following and write them in symbols.
1. The mean performance of all grade 11 leavers of a school in the NAT is 35.
2. Only 34% of people who try to quit smoking succeed. A company claims that using their chewing gum can help
people quit.
3. The school principal wants to test if it is true what teachers say that junior high school learners use the computer
of the school in an average of 3.2 hours a day.
4. LTO claimed that 88% of candidates pass driving test, but a newspaper claims that this rate is lower than the
reported value.
5. A Mayor's disapproval rating is below 30% of the respondents.
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