Population and sample The object of our project is to research phone using habits of K21 FMT students of Ha Noi University.. The following three questions are to find out the effects of
RESULT AND FINDING OF THE HYPOTHESIS TEST
This project uses a hypothesis test to determine whether the vast majority of FMT students (>70%) believe their current phone usage habits are logical 104 FMT students completed the questionnaire's 14 questions in order to gather the data Our team formulates the following assessments to determine the supporting evidence:
Question 14: Do you think that your current phone using habits are logical?
There are only two qualitative outcomes: “YES” and “NO”
2.2 The population follows Binomial distribution:
LÌ The survey was conducted among 104 FMT students who were randomly selected They answered the questions that are identical in the questionnaire thus results are the sequence of 104 identical trials; each trial involves the answer for one questionnaire
The question has two outcomes as explained above The probabilities of choosing “YES” and “NO” are the same for each trial, with p = 0.5 and /- p = 0.5
L1 ‘The trials are independent because respondents are randomly chosen and the answer of each one is not affected by the others
2.3 The sampling distribution of the mean is normal
There are 104 students being asked therefore the sample size is /04 => n = 104 O Letpo denote the hypothesized value for the population proportionPo= 0.7 npạ = 104 x 0.7= 72.8> 5, n(1- py) = 100 x (1-07) 2.1>5
Lì Therefore, the sample proportions are approximately normally distributed
All things considered, this sample meets all the required assumptions to perform the one- sample Z test for proportion
3 Data analysis O One proportion right-tailed Z test O Sample size: n = 104
_ Lefp be the sample proportion of FMT students who think that their current phone usage habits are logical
The proposed prediction for the phenomenon being studied in this project is “The vast marjority (>70%) of FMT students thinks that their current phone usage habits are logical” with 5% of level significance
We conducted the Hypothesis test through 6 steps:
Step 1: Identification of null and alternative hypotheses
Po(l—po) n Step 3: Level of significance: a= 0.05 Step 4: Decision rule
Za = Loos = 1.645 We would reject the null hypothesis if z > 1.645 Step 5: Value of test statistics
Step 6: Conclusions Because z