Question
Students in a representative sample of 65 first-year students selected from a large university in England...
Students in a representative sample of 65 first-year students selected from a large university in England participated in a study of academic procrastination. Each student in the sample completed the Tuckman Procrastination Scale, which measures procrastination tendencies. Scores on this scale can range from 16 to 64, with scores over 40 indicating higher levels of procrastination. For the 65 first-year students in this study, the mean score on the procrastination scale was 36.7 and the standard deviation was 6.49.
(a) Construct a 95% confidence interval estimate of μ, the mean procrastination scale for first-year students at this college. (Round your answers to three decimal places.)
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
A class survey in a large class for first-year college students asked, "About how many minutes...
A class survey in a large class for first-year college students
asked, "About how many minutes do you study on a typical
weeknight?" The mean response of the 285 students was x⎯⎯⎯x¯ = 132
minutes. Suppose that we know that the study time follows a Normal
distribution with standard deviation σσ = 65 minutes in the
population of all first-year students at this university.
Use the survey result to give a 95% confidence interval for the
mean study time of...
(1 point) A class survey in a large class for first-year college students asked, "About how...
(1 point) A class survey in a large class for first-year college
students asked, "About how many minutes do you study on a typical
weeknight?" The mean response of the 278 students was x⎯⎯⎯ = 147
minutes. Suppose that we know that the study time follows a Normal
distribution with standard deviation σ = 65 minutes in the
population of all first-year students at this university. Use the
survey result to give a 90% confidence interval for the mean study...
A class survey in a large class for first-year college students asked, "About how many minutes...
A class survey in a large class for first-year college students
asked, "About how many minutes do you study on a typical
weeknight?" The mean response of the 284 students was x⎯⎯⎯x¯ = 138
minutes. Suppose that we know that the studey time follows a Normal
distribution with standard deviation σσ = 65 minutes in the
population of all first-year students at this university. Regard
these students as an SRS from the population of all first-year
students at this university....
A local university requires that all first-year students complete a math course during first semester. This...
A local university requires that all first-year students
complete a math course during first semester. This year the
university is evaluating a new online version of the course. A
random sample of n = 20 students is selected and the students are
placed in the online course. At the end of the semester, all
students take the same math exam. The average score for the sample
of n = 20 students is M = 85. For the general population of...
A local university requires that all first year students complete a math course during first semester....
A local university requires that all first year students
complete a math course during first semester. This year the
university is evaluating a new online version of the course. A
random sample of n = 20 students is selected and the students are
placed in the online course. At the end of the semester, all
students take the same math exam. The average score for the sample
of n = 20 students is M = 85. For the general population...
In a study of academic procrastination, the authors of a paper reported that for a sample...
In a study of academic procrastination, the authors of a paper
reported that for a sample of 421 undergraduate students at a
midsize public university preparing for a final exam in an
introductory psychology course, the mean time spent studying for
the exam was 7.54 hours and the standard deviation of study times
was 3.40 hours. For purposes of this exercise, assume that it is
reasonable to regard this sample as representative of students
taking introductory psychology at this university....
A student group claims that first year students at a university must study 2.5 hours per...
A student group claims that first year students at a university
must study 2.5 hours per night during the
school week. A skeptic suspect that they study less than that on
average. A class survey finds that the
average study time claimed by 269 students is 137 minutes. Regard
these students as a random sample
of all first-year students and suppose we know that study times
follow a Normal distribution with
standard deviation of 65 minutes. Is there evidence that...
In a recent year, 65% of first-year college students responding to a national survey identified "being...
In a recent year, 65% of first-year college students responding
to a national survey identified "being very well-off financially"
as an important personal goal. A state university finds that 102 of
an SRS of 200 of its first-year students say that this goal is
important. Is there convincing evidence at the α=0.05 significance
level that the proportion of all first-year students at this
university who think being very well-off is important differs from
the national value, 65%?
In a recent year, 65% of first-year college students responding to a national survey identified “being...
In a recent year, 65% of first-year college students responding
to a national survey identified “being very well-off financially”
as an important personal goal. A state university finds that 102 of
an SRS of 200 of its first-year students say that this goal is
important. Is there convincing evidence at the α=0.05 significance
level that the proportion of all first-year students at this
university who think being very well-off is important differs from
the national value of 65%?
A class survey in a large class for first-year college students asked, "About how many hours...
A class survey in a large class for first-year college students
asked, "About how many hours do you study during a typical week?"
The mean response of the 463 students was x = 15.4 hours.
Suppose that we know that the study time follows a Normal
distribution with standard deviation σ = 8.9 hours in the
population of all first-year students at this university.
(a) Use the survey result to give a 99% confidence interval for
the mean study time...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 46 seconds ago
asked 9 minutes ago
asked 20 minutes ago
asked 28 minutes ago
asked 45 minutes ago
asked 51 minutes ago
asked 52 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago