Suppose a simple random sample of 26 male students is asked whether they have pulled an "all-nighter " for academic reasons and 10 answered "yes." Suppose a simple random sample of 25 female students is asked whether they have pulled an "all-nighter" for academic reasons and 8 answered "yes."

Is there insufficient evidence based on the sample to reject the claim that male and female students are equally likely to have pulled an "all-nighter" for academic reasons?

Suppose a simple random sample of 26 male students is asked whether they have pulled an "all-nighter " for academic reasons and 10 answered "yes." Suppose a simple random sample of 25 female students is asked whether they have pulled an "all-nighter" for academic reasons and 8 answered "yes."

Is there insufficient evidence based on the sample to reject the claim that male and female students are equally likely to have pulled an "all-nighter" for academic reasons?

A theater is presenting a program on drinking and driving for students and their parents or other responsible adults. The proceeds will be donated to a local alcohol information center. Admission is

$ 2.00$2.00

for adults and

$ 1.00$1.00

for students.​ However, this situation has two​ constraints: The theater can hold no more than

150150

people and for every two​ adults, there must be at least one student. How many adults and students should attend to raise the maximum amount of​ money?

Assignment title or task: Identify which study design is applicable for studying the following health outcomes and why?
1. Number of new cases of obesity among college students in Saudi Arabia in 2019.
2. The number of students with obesity who are physically active and the number of students with obesity who are physically inactive.
3. Give two difference between descriptive and analytic cross-sectional study.
* Answer should be ( 300 - 350) Words.

UMUC plans to use a new tutorial to teach the students about business ethics. As an experiment, the administrator randomly selected 15 students, and randomly assigned them to one of three groups: a PowerPoint presentation created by faculty, AuthorGen Presentation created by the faculty, or a well known tutorial by the ABC company. After completing their assigned tutorial, the students are given a Business Ethics test. Use Excel Data Analysis at = 0.01 to decide which tutorials to use?

An instructor of a statistics course had students report data about themselves, including hand preference (left or right handed) and pulses rate (beats per minute). We will use these data to conduct a hypothesis test to answer the question "does mean pulse rate differ for left-handed students, as compared to right-handed students?"

A. What are the hypotheses for your test?

B. Do you have paired samples or independent samples?

The number of pizzas consumed per month by university students is normally distributed with a mean of 8 and a standard deviation of 4. Use Excel to answer the following questions:

A. What proportion of students consume more than 9 pizzas per month?

Probability =

B. What is the probability that in a random sample of size 9, a total of more than 81 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample of 9 students?)

Probability =

Around 16% of all ABC college students are declared econ majors. a sample of 75 students is taken.

(1) What is the distribution of the proportion of econ majors in your sample? (sampling distribution)

(2) What is the exact distribution of the number of econ majors in your sample?

(3) What’s the probability that more than a quarter of the students you sample are majoring in econ

(4) What’s the probability that less than 10% of the sample will be econ majors?

1. A researcher is interested in finding out if college-bound high school students tend to smoke cigarettes less than high school students who are not college-bound. He distributes a questionnaire and finds that for a group of 57 college-bound students, the mean number of cigarettes smoked per week is 4.0 with a standard deviation of 2.0. For 36 non-college-bound students, he finds that the mean number of cigarettes smoked per week is 9.0 with a standard deviation of 3.0. A. What is the null hypothesis? B. What is the alternative hypothesis? C. What is the t value? (Be sure to show your work.) D. Using your table, is the difference between these groups statistically significant at the 0.05 level?

In 2003, forty percent of the students at a major university were Business majors, 35% were Engineering majors and the rest of the students were majoring in other fields. In a sample of 600 students from the same university taken in 2004, two hundred were Business majors, 220 were Engineering majors and the remaining students in the sample were majoring in other fields. At 95% confidence, test to see whether there has been a significant change in the proportions between 2003 and 2004

Test statistic:

Explanation:

is it a

normal distribution, t distribution with 29 degrees of freedom, t-distribution with 70 degrees of freedom, Chi-square with 2 degrees of freedom, Chi-square with 1 degree of freedom