MATH 160 Cuyamaca Community College Statistics Cell Phones Hypothesis Test Discussion

Question Description

Learn by Doing

Some features of this activity may not work well on a cell phone ortablet. We highly recommend that you complete this activity on acomputer.

Here are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises.

A list of StatCrunch directions is provided at the bottom of this page.

Variables

Math: Math SAT score
Verbal: Verbal SAT score
Credits: Number of credits the student is registered for
Year: Year in college (1=Freshman, 2=Sophomore, 3=Junior, 4=Senior)
Exercise: Time (in minutes) spent exercising in a typical day
Sleep: Time (in hours) spent sleeping in a typical day
Veg: Are you a vegetarian (yes, no, some)
Cell: Do you own a smart phone (yes, no)

Data

If you have not done so already, download the cell-phones datafile. As always, if you are prompted to login, just close the prompt and continue with the download.

Upload the datafile into StatCrunch. Note: the symbol * in thespreadsheet indicates a missing value; this means that the associatedindividual did not answer the question.

Context

In 2015 college students at a large state university completed asurvey about their academic and personal life. Questions ranged from”How many credits are you registered for this semester?” to “Would youdefine yourself as a vegetarian?”

The researcher randomly selected 325 students from the university; 312 responded to the survey.

Prompt

The cell-phone datafile is available in the Data section below.

Once again, here is the research question for this lab.

Based on a recent study, roughly80% of college students in the U.S. own a smartphone. Is the proportionof smartphone owners lower at this university?

Respond to each of the following in your initial post.

State your hypotheses in symbolic form and in words. (The followingshould be clear in your answer: the population of interest and themeaning of the proportion p in terms of the variable Cell.)
StatCrunch uses a normal model to estimate the P-value probability. Verify that normality conditions are met.
Use StatCrunch to conduct the hypothesis test. (directions)
Copy and paste the results (the StatCrunch output window) into your initial post.
Give your P-value and interpret its meaning as a conditional probability.
State a conclusion that answers the research question. Use asignificance level of 5%. (Your answer should include the P-value andreference the population and the variable Cell.)



^{Have a similar assignment? "Place an order for your assignment and have exceptional work written by our team of experts, guaranteeing you A results."}

Our Service Charter

1. Professional & Expert Writers: Eminence Papers only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Eminence Papers are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Eminence Papers are known for the timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Eminence Papers, we have put in place a team of experts who answer all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.