Question

In: Statistics and Probability

Complete a 6-step hypothesis test using the following scenario: Students at a college are randomly selected...

Complete a 6-step hypothesis test using the following scenario:

Students at a college are randomly selected 217 student cars and they found that they had ages with a mean of 7.89 years and a standard deviation of 3.67 years. They also randomly selected 152 faculty cars and found that they had ages with a mean of 5.99 years and a standard deviation of 3.65 years. Using a 0.05 significance level, is there sufficient evidence to support the claim that student cars are older than faculty cars?

Solutions

Expert Solution


Related Solutions

Complete a 6-step hypothesis test using the following scenario: In 2012, the mean age of an...
Complete a 6-step hypothesis test using the following scenario: In 2012, the mean age of an inmate on death row was 40.7 years, according to data from the U.S. Department of Justice. A sociologist wondered whether the mean age of a death row inmate has changed since then. She randomly selects 32 death row inmates and finds that their mean age is 38.9 with a standard deviation of 9.6. Test using a 0.01 significance level.
Complete a 6-step hypothesis test using the following scenario: In 2012, the mean age of an...
Complete a 6-step hypothesis test using the following scenario: In 2012, the mean age of an inmate on death row was 40.7 years, according to data from the U.S. Department of Justice. A sociologist wondered whether the mean age of a death row inmate has changed since then. She randomly selects 32 death row inmates and finds that their mean age is 38.9 with a standard deviation of 9.6. Test using a 0.01 significance level.
Complete a 6-step hypothesis test using the following scenario: The body mass index (BMI) of an...
Complete a 6-step hypothesis test using the following scenario: The body mass index (BMI) of an individual is a measure used to judge whether an individual is overweight or not. A BMI between 20 and 25 indicates normal weight. In a survey of 750 men and 750 women, the Gallup organization found that 203 men and 270 women were normal weight. Is this enough evidence to determine if there is a greater number of women at a normal weight than...
The paired data below consist of the test scores of 6 randomly selected students and the...
The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Test the claim that there is a linear correlation between hours of study and test scores, with 0.03 significance level and P-Value method. Hours 6 7 5 9 4 10 Score 71 82 58 85 62 91
Suppose 250 randomly selected students in a college are surveyed to determine if they own a...
Suppose 250 randomly selected students in a college are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a tablet. a. explain whether normal model can be used in this situation b. find the standard error. c. Construct the 95% confidence interval and explain what it means in the context of the problem d. based on the college database, the proportion of students that owns a tablet in this college is 36% What is...
At a local college, 65 female students were randomly selected and it was found that their...
At a local college, 65 female students were randomly selected and it was found that their mean monthly income was $609. Seventy-five male students were also randomly selected and their mean monthly income was found to be $651. Test the claim that male students have a higher monthly income than female students. Assume the population standard deviation for the females is $121.50 and for the males $131. Use α = 0.01
The following data were collected from a survey of 10 randomly selected college students: Find the...
The following data were collected from a survey of 10 randomly selected college students: Find the mean, median, mode, variance, standard deviation, the five number summary report of the hours per week of the sample of students’ studied. Show your work. Student ID Facebook # hours of study per week 244701130 Yes 8 302896051 no 5 734077249 yes 11 891072704 yes 5 730265917 yes 9 894866913 no 6 644678646 no 1 369417477 yes 1 388511718 yes 2 554470987 no 1
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...
In a recent survey of 60 randomly selected college students, 43 said that they believe in...
In a recent survey of 60 randomly selected college students, 43 said that they believe in the existence of extraterrestrial life. a) Find p?, the sample proportion that believes that there is extraterrestrial life. (Round your answers to three decimal places). p? = b)The 99 % margin of error associated with this estimate is: c) The 99 % confidence interval for the true proportion of all college students who believe there is extraterrestrial life is: to d) A recent report...
When 328 college students are randomly selected and surveyed, it is found that 122 own a...
When 328 college students are randomly selected and surveyed, it is found that 122 own a car. Find a 99% confidence interval for the true proportion of all college students who own a car. A) 0.328 < p < 0.416 B) 0.320 < p < 0.424 C) 0.310 < p < 0.434 D) 0.303 < p < 0.441
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT