Pleas do it on a computer. Thank you. Pick from the list of hypothesis testing,
ID: 3226849 • Letter: P
Question
Pleas do it on a computer.Thank you. Pick from the list of hypothesis testing, complete a TYPED report of the process and the results and turn in to me on the day of the final exam. You should have proof of how you collected your data (signatures, pictures of the collection, etc.) You are required, however, to stay for the showing of the videos. You leave early, points will be taken off your project. I will have a sign out sheet at the end of the exam. Below are simply the "basics" of your boss has come to you and has asked you the following questions. You are given NO other information. So you need to go through the entire process of Picking your level of significance and clearly stating why you chose the value based on Type 1 errors. Finding your sample size, using the sample size formula and clearing stating all the pieces that you entered (up to you to decide on your error) Discussing how you collected your data and how you ensured it was a represented sample (ex. Different times, different locations, etc.) Go through each of the steps of the hypothesis testing process and clearly define them in your paper as well as your video (if you chose to do the video). Test to choose from with a single population Proportion of students that prefer Snapchat to all other social media Do business majors that commute to class commute longer than 30 minutes? Average waiting time at the JPL food court to get your food and pay is typically 15 minutes. Proportion of a particular color (you decide BEFORE collecting data) vehicle in the UTSA parking lot is greater than any other color. Your own interested test Have you ever been interested in something on your own? Come up with your own TWO population test. This will take a little more explaining of why your interest in the test.
Explanation / Answer
proportion of students who prefer snapchat to all other social media
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1)
Let the significance level = 0.05. This is the default value that is used when no other
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2)
The sample can be selected by randomly selecting 15 students from 10 top schools in the region
The 15 students must be from the age group : 12-14 , 15-17, 18-20
Such a sampling technique is called "stratified sampling"
Like this we get a sample of 150 students that covers the population of students correctly
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3)
The sample would surely cover different schools and different age groups to ensure that the population is presented completely in the research.
The best way to reach the sampling units is with the help of telephonic interview
This will provide the correct answer quickly
we can design the question as follows:
Which socail sites do you use
Do you prefer snapchat over others
give tow features of snapchat that you like the most
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But such questions we would get the answer to the research question easily
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4)
The steps of hypothesis tests are:
Collect the data and record it
Find the number of students who prefer snapchat
let it be denoted by x
we got sample size n = 150
Sample proportion P hat = x/n
P^ = x/150
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Let us consider the population proportion P = 0.75
[this figure or value can be obtained from some other externatl source]
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Test statistic z = (p hat - p) / sqrt(p*(1-p)/n)
let us say that p ^ = 0.70
Z = (0.70 -0.75 ) / sqrt(0.75*0.25/150)
Z = -0.05 / 0.03535
Z = -1.41
P Value for Z = -1.41 is 0.079
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Inference:
Since the P value 0.079 > significance level 0.05 , we fail to reject the null
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Conclusion:
Thus the proportion is 0.75 as stated by the null hypothesis