Question 1
A researcher investigating whether joggers are less likely to get colds than people who do not jog found a
P-value of 3%. This means that:
◦ There's a 3% chance that joggers get fewer colds.
◦ Joggers get 3% fewer colds than non-joggers.
◦ There's a 3% chance that joggers don't get fewer colds.
◦ None of these.
◦ 3% of joggers get colds.
Question 2
To plan the budget for next year a college needs to estimate what impact the current economic downturn might have on student requests for financial aid. Historically, this college has provided aid to 35% of its students. Officials look at a random sample of this year's applications to see what proportion indicate a need for financial aid. Based on these data they create a 90% confidence interval of (32%, 40%). Could this interval be used to test the hypothesis H
0:
p = 0.35 versus H
A:
p ≠ 0.35 at the α = 0.10 level of significance?
◦ Yes; since 35% is in the confidence interval they accept the null hypothesis, concluding that the percentage of students requiring financial aid will stay the same.
◦ Yes; since 35% is in the confidence interval they fail to reject the null hypothesis, concluding that there is not strong evidence of any change in financial aid requests.
◦ No, because they only used a sample of the applicants instead of all of them.
◦ Yes; since 35% is not at the center of the confidence interval they reject the null hypothesis, concluding that the percentage of students requiring aid will increase.
◦ No, because financial aid amounts may not be normally distributed.
Body plan of an arthropod, as represented by a grasshopper
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Honey should never be given to children younger than one year of age
economic question
economic question (having trouble)
Dragon Chinese new year 2023