Question

A researcher wonders if there is a relationship between time of day and people s willingness...

A researcher wonders if there is a relationship between time of day and people s willingness to wear seatbelts. To investigate this question, he randomly polls 200 people. The data obtained are classified into a 2 x 2 data table. Which statistical test best determines the degree of association between time of day and seatbelt use?

Homework Answers

Answer #1

A hun cher rmdus hene isa Melain ip balaten Lo WRA atebts Hae o ne tay & tate s uilnglaess $7 Yhe lo inmestigate this aestow he randsmly us dara fiuh inta / o0peplethe data hained ane 1 a 22 data tate ben-determines the Fa **, Chisquire tet dey &the asoinin betneen me Woe batbelt

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A researcher would like to find out if there is any relationship between age (young and...
A researcher would like to find out if there is any relationship between age (young and old) and ramen consumption (high and low) among Singaporeans. From the data he obtained, he suspects that sex is a confounder. Which of the following should hold to show that he is correct? I. The percentage of old people among males is different from the percentage of old people among females. II. The percentage of males among the high ramen consumers is different from...
A researcher wants to examine the relationship between time spend on social media (variable X) and...
A researcher wants to examine the relationship between time spend on social media (variable X) and loneliness (variable Y) in young adults. A randomly sample of n = 72 young adults was asked how much time in average they spend on social media each day and how lonely day feel on a typical day. The partial computations of collected data produced the following results:                                             SP = 3.5     MX = 5   SSx = 16    MY = 20    SSY= 9 A. Based on these...
A researcher would like to know whether there is a consistent, predictable relationship between verbal skills...
A researcher would like to know whether there is a consistent, predictable relationship between verbal skills and math skills for high school students. A sample of 200 students is obtained and each student is given a standardized English test and a standardized math test. Based on the test results, students are classified as high or low for verbal skills and for math skills. The results are summarized in the following frequency distribution: Verbal Skills High Low High Math 50 30...
Question 2 A researcher wants to investigate if there is a relationship between the blood pressure...
Question 2 A researcher wants to investigate if there is a relationship between the blood pressure level and the type of diabetes of diabetic patients. He selects 60 diabetic patients at random and classifies them according to their blood pressure level and type of diabetes. Low Blood Pressure Normal Blood Pressure High Blood Pressure Type I Diabetes 14 18 8 Type II Diabetes 5 6 9 For this data, What is the appropriate test for this information (ANOVA, goodness-of-fit, test...
A researcher was interested in the relationship between an average daily time spent on social media...
A researcher was interested in the relationship between an average daily time spent on social media (i.e., X variable) and social anxiety (i.e., Y variable). The data collected on a sample of n = 82  undergraduate students produced the following results:        SSx= 49, SSY= 36, SP = 11, MX = 8, MY = 15. A. Is there a significant correlation between an average daily time spent on social media and social anxiety? Use 2-tailed test, p < .05 to answer this research...
       A MEDICAL RESEARCHER WANTS TO DETERMINE IF A POSITIVE LINEAR RELATIONSHIP EXISTS BETWEEN THE...
       A MEDICAL RESEARCHER WANTS TO DETERMINE IF A POSITIVE LINEAR RELATIONSHIP EXISTS BETWEEN THE NUMBER OF POUNDS A MALE IS OVERWEIGHT AND HIS BLOOD PRESSURE. HE RANDOMLY SELECTS A SAMPLE OF 10 MALES AND RECORDS THE NUMBER OF POUNDS THAT THE INDIVIDUAL IS OVER HIS IDEAL WEIGHT ACORDING TO A MEDICAL WEIGHT CHART AND HIS SYSTOLIC BLOOD PRESSURE. SAMPLE DATA IS LISTED HERE-IN                           Q 3                              ...
A researcher wishes to examine whether time of day (morning versus afternoon) affects the memory of...
A researcher wishes to examine whether time of day (morning versus afternoon) affects the memory of older and younger participants. He obtains a sample of 40 older individuals and 40 younger individuals and gives them a passage to read. They are later given a test over the passage (scores on the test could range from 0 to 30). Half of the individuals are randomly assigned to read the passage and take the test in the morning, and the other half...
1. A researcher conducts a survey to determine the relationship between aptitude for mathematics and musical...
1. A researcher conducts a survey to determine the relationship between aptitude for mathematics and musical ability. She finds a perfect relationship. High levels of mathematics aptitude are associated with low levels of musical ability. Given this information, what is the value of the correlation coefficient for the above study? ______________ 2. You obtain a score of 80 on a test. If the test is graded on a ‘curve’ (based on how you did in comparison with the class as...
1. A researcher wants to investigate the relationship between 3 year olds watching Sesame Street and...
1. A researcher wants to investigate the relationship between 3 year olds watching Sesame Street and vocabulary. She asks the parents how much Sesame Street their child watches per week then ascertains how many words that child knows. The data is as follows: Participant Hours watching sesame street per week words known A 8 200 B 10 210 C 4 270 D 2 250 E 4 310 F 7 309 G 3 275 H 5 290 I 6 342 b....
1. Correlations and Scatter Plots The following data set represents avg time per week spent on...
1. Correlations and Scatter Plots The following data set represents avg time per week spent on social media by age for 12 randomly chosen individuals. Age 14 18 27 21 55 46 18 26 15 17 62 41 Time (s) 240 150 135 110 45 72 150 41 200 125 31 52 a. The correlation coefficient between the two variables is found to be r = -0.84, and the standard deviation for each variable are Sage = 16.71 and Stime...