Question

In: Statistics and Probability

A survey was conducted at the MSU Library and at Rendezvous Dining Hall. Students passing by...

A survey was conducted at the MSU Library and at Rendezvous Dining Hall. Students passing by were randomly given one of two Facebook status posts, then asked to answer the following questions:

  1. How would you best describe the creator of this post: Trustworthy or Untrustworthy
  2. What is your major?
  3. Which best describes you: Introvert or Extrovert

One of the two Facebook posts was created using an online generator utilizing good grammar techniques (noted as Good Grammar in the dataset). The post was written to be as neutral as possible, avoiding contentious or opinionated topics. That same post was then re-written using improper grammar (Bad Grammar). Of the many students asked to participate, 99 agreed to be part of the study.

  1. [2 pts] Write the null and alternative hypothesis using proper notation. Be sure to explain what each subscript represents.

H0:

HA:

Solutions

Expert Solution


Related Solutions

You are opening a pizzeria, and you have access to a secret survey of MSU students...
You are opening a pizzeria, and you have access to a secret survey of MSU students that reveals local pizza demand to be described by this function: Qp = 150 - 30Pp + 10Pj - 5GI, where Qp is the number of slices of pizza demanded, PP is price of pizza, PJ is price of peanut butter and jelly sandwiches, and GI is the population of gluten intolerant individuals. For the 5 short-answer questions below, give answers in order with...
A survey of Ohio University students was conducted to determine if there was a particular ‘Green’...
A survey of Ohio University students was conducted to determine if there was a particular ‘Green’ that was desired by students to live on. A sample of 120 students responses are reproduced below. Do students prefer a particular ‘Green’? Use critical value = 5.99. West Green South Green East Green 40 20 60 Q1: What are the expected values? Q2: What is the calculated chi-squared value? Q3: Was there a significant preference for where students live? A. Yes B. No
A nationwide survey of college students was conducted and found that students spend two hours per...
A nationwide survey of college students was conducted and found that students spend two hours per class hour studying. A professor at your university wants to determine whether the time students spend at your university is significantly different from the two hours. A random sample of 36 statistics students is carried out and the findings indicate an average of 1.75 hours. Assume a populatoin standard deviation of 0.5 hours. Using a level of significance of 0.05: 1. Construct a 95%...
A survey was conducted at two colleges. 500 students at College A participated in the study....
A survey was conducted at two colleges. 500 students at College A participated in the study. The results indicated that on average, the students spent 15 hours per week doing online assignments and its standard deviation was 5 hours. At College B, 400 students participated in the study. The average hours they worked for online assignments was 20 with a standard deviation of 4 hours. Please test whether there is a true difference in the time students spent for online...
A survey was conducted at a college to determine the number of hours students spent outside...
A survey was conducted at a college to determine the number of hours students spent outside on weekends during the winter. For students from cold weather climates, the results were M = 8, SD = 1.5. For students from warm-weather climates, the results were M = 5, SD = 4.2. Explain what these numbers mean to a person who has never had a course in statistics, and suggest conclusions the person can draw from these results. These conclusions use the...
A survey of 36 randomly selected students who dropped a course was conducted at a college....
A survey of 36 randomly selected students who dropped a course was conducted at a college. The following results were collected. Complete parts​ (a) through​ (c). a) Construct a contingency table for the two variables. CourseCourse PersonalPersonal WorkWork Male FemaleFemale ​(b) Test whether gender is independent of drop reason at the alphaαequals=0.1 level of significance. What are the​ hypotheses? A. Upper H 0H0​: pSubscript Upper CCequals=pSubscript Upper PPequals=pSubscript Upper WW Upper H 1H1​: At least one of the proportions is...
A survey of 13,364 students in a country who enrolled in private career colleges was conducted...
A survey of 13,364 students in a country who enrolled in private career colleges was conducted to understand student participation in the private postsecondary educational system. In one part of the survey, students were asked about their field of study and about when they entered college. Here are the results. Field of Study Number of Students Time of Entry Right After High School Later Trades 942 34% 66% Design 584 47% 53% Health 5085 40% 60% Media/IT 3148 31% 69%...
3. A telephone survey of university students was conducted to estimate the prevalence of respiratory disease...
3. A telephone survey of university students was conducted to estimate the prevalence of respiratory disease in the student population. What type of study is this? (1 mark) a) Case-control b) Cohort c) Cross-sectional d) Longitudinal e) Cluster-randomised trial 3b. Could this study be affected by selection bias? If so, how? Answer in complete sentences. (1 mark) 3c. How would such bias affect the prevalence estimate? Answer in complete sentences. (1 mark)
Use the following for the next 4 questions: A nationwide survey of college students was conducted...
Use the following for the next 4 questions: A nationwide survey of college students was conducted and found that students spend two hours per class hour studying. A professor at your school wants to determine whether the time students spend at your school is significantly different from the two hours. A random sample of fifteen statistics students is carried out and the findings indicate an average of 2.1 hours with a standard deviation of 0.24 hours. Using the 0.10 level...
1. A company conducted a marketing survey of college students and found that 225 own a...
1. A company conducted a marketing survey of college students and found that 225 own a bicycle and 77 owned a car. If 23 of those surveyed own both a car and a bicycle, how many interviewed have a car or a bicycle? 2. A standard deck of cards consists of four suits (clubs, diamonds, hearts, and spades), with each suit containing 13 cards (ace, two through ten, jack, queen, and king) for a total of 52 cards in all....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT