Recently, a local newspaper reported that part time students are
older than full time students. In order to test the validity of its
statement, two independent samples of students were
selected.
Full Time |
Part Time |
|
27 |
23 |
|
s |
5 |
4 |
n |
42 |
31 |
Give the value of the test statistic.
Question 10 options:
5.43 |
|
3.22 |
|
2.06 |
|
3.79 |
test statistic = 3.79
Recently, a local newspaper reported that part time students are older than full time students. In...
Recently, a local newspaper reported that part time students are older than full time students. In order to test the validity of its statement, two independent samples of students were selected. Full Time Part Time 27 23 s 5 4 n 42 31 Give the value of the test statistic. Question 10 options: 3.79 2.06 3.22 5.43
Recently, a local newspaper reported that part time students are older than full time students. In order to test the validity of its statement, two independent samples of students were selected. Full Time Part Time 27 23 s 5 4 n 42 31 State whether this is a two-tail, one-tail(upper), one-tail(lower) hypothesis test. Question options: A one-tail(upper) B two-tail but in the upper tail C one-tail(lower) D two-tail
(Answers are given but could you please work through the problem and show me the steps?) Chapter 10 Recently, a local newspaper reported that part-time students are older than full-time students. In order to test the validity of its statement, two independent samples of students were selected. Full-Time Part-Time (in years) 26 24 s 2 3 n 42 31 a. Give the hypotheses for the above. b. Determine the degrees of freedom. c. Compute the test statistic. d. Using...
An economist claims that 40% of Americans older than 65 work part time. A sample of 200 Americans older than 65 showed 100 worked part time. Can you prove, at 95% confidence, that the economist’s claim is not true? Before doing the problem, you must show that the problem meets the requirements for performing the test. To get full credit, state your null and alternate hypothesis, show how you calculated your test statistic, show your critical region (reject region), and...
5-8 show work
5. 6. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean - 450 and o = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 c. The probability of a student selected at random having scored between 400 and 575 A...
Jamie Lee Jackson, age 24, has recently decided to switch from attending college part-time to full-time in order to pursue her business degree, and aims to graduate within the next three years. She has 55 credit hours remaining in order to earn her bachelor's degree, and knows that it will be a challenge to complete her course of study while still working part-time in the bakery department of a local grocery store, where she earns $390 a week. Jamie Lee...
For the two variables of interest: Create a scatter plot with Percent Time Asleep as the independent variable x and Longevity as the dependent variable y. The plot must include an informative title, along with correct labels for both axes. Include a plot of the least-squares equation (see #5 below). Calculate the correlation coefficient and the coefficient of determination. Identify any data points on the scatter diagram that appear to be influential. Use Cook's Distance > (4⁄√n) as the criterion...
Future Time Orientation and Condom Use for AIDS
Prevention
Background Notes: Researchers administered questionnaires to
male college students taking an introductory psychology course.
Among other things, they measured future time orientation defined
as planning ahead for future events and willingness to delay
gratification. (Sample item: “I believe that a person’s day should
be planned ahead.”) Based on the scores on the future time
orientation scale, they split the male students into two groups –
one low in future orientation and...
Jamie Lee Jackson, age 27, full-time student and part-time bakery employee, has just moved into a bungalow-style, unfurnished home of her own. The house is only a one- bedroom, but the rent is manageable and has plenty of room for Jamie Lee. She decided to give notice to her roommate that she would be leaving the apartment and the shared expenses after the incident with the stolen checkbook and credit cards a few weeks back. Jamie had to dip in...