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1. Suppose we wanted to test the hypothesis that the employment status of these disadvantaged women (i.e., whether they were working or not working at the time of the interview) was related to their level of depression.
(a) Formally state the null and alternative hypothesis for this situation.
(b) Would a dependent or independent t test be appropriate? Why?
Do you agree or disagree? Discuss briefly. Notes. "Baseline characteristics" are characteristics of subjects measured at the beginning of the study, i.e., just before randomization. The quote, slightly edited, is from Victora et al (2004).
The first 16 samples were each chosen from 400 items, and the remaining 9 samples were each chosen from 300 items. Determine whether the employee's performance can be judged stable. Comment on the capability of the employee.
If it were true that just 2% of the tires produced have surface blemishes, what would be the probability of getting 5 or more with such blemishes in a random sample of 40 tires?
what crimes were most commonly committed on minnesota campuses between 2009 and 2011?based on the data would you say
question in the poker game a hand is a set of 5 cards chosen randomly from a usual deck of 52 cards.a how many
The serum cholesterol levels for men in one age group are normally distributed with a mean of 185.1 and a standard deviation of 37.8. All units are in mg/100 ml. Find the two levels that separate the top 8% and the bottom 8% of this population.
What is the p-value associated with the sample results? What is your conclusion based on the p- value?
you are given 10 multiple choice questions with 5 choices each of which only one is correct. if you try and guess the
a door-to-door residential solar electrical system salesman is required to document four in-home visits each day.
Was there any difference in the nurses' preference in brand (α = 0.05)? Show all necessary components of a full hypothesis test, including a source table.
A mean of 400 labour hours and a standard deviation of 100 labour hours. What is the probability that the bridge gets constructed between 350 and 450 hours?
15% of the south district students failed, and 5% of the central district students failed. Develop a probability tree showing all marginal, conditional, and joint probabilities.
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