Consider the following notation• i: units•t: time (in years)To: the number of pre-intervention periods• A: an indicator of living in a state that had implemented same-sex marriage policies• Xi: conditioning covariates, e.g., state, age, sex, race/ethnicity, and year• Yit: unit i's self-report of 1 or more suicide attempts within the past 12 months measured at yeartY: unit i's potential outcome under the intervention at time tYo: unit i’s potential outcome under the control at time tSuppose that the consistency assumption holds. Which potential outcome can never be observed (chooseall that apply)?a. Y with Ai= 0 and t ≤ Tob. Ywith Ai = 0 and t > Toc. Y with Ai= 1 and t ≤ Tod. Y with Ai= 1 and t > Toe. Y with Ai = 1 and t > To

In this question, we are dealing with a study that examines the impact of same-sex marriage policies…

Answered: Consider the following notation • i:…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The times for the mile run of a large group of college male students are approximately Normal with mean µ = 7.11 minutes and standard deviation o = 0.74 minutes. Use a table of areas to answer the following: (a) What percent of these men run a mile between 7.11 minutes and 8 minutes? (b) What percent of these men run a mile in under 5 minutes? (c) What percent of these men ran the mile in over 9 minutes? (d) What percent of these men run a mile between 7 minutes to 8 minutes?
(a) how many subjects are needed to estimate the mean number of books read the previous year with six books with 90% confidence?
QUESTION 2 A minimum mileage guarantee on the tires of a tire manufacturing company is being considered to be set. When the company conducted many tire tests, it revealed that the mean mileage has a normal distribution with mean 2,752 and standard deviation 119. The tire manufacturer wants to set the minimum guaranteed mileage so that no more than 2.5 percent of tires will have to be exchanged. Calculate the Lower limit of guaranteed mileage? (Round answer to two decimal places ex. 2.09)
glucose levels in oatients free of diabetes are assumed to follow a normal distribution with a mean of 120 and a standard deviation of 16. What proportion of patients have glucose levels exceesing 115?
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The best depiction of a population characteristic is a(an): Dependent variable Statistic Independent variable Parameter
A fertilization trial was conducted to evaluate the effects of chicken manure and urea on the growth of tilapia in ponds. Treatments were randomly allocated to 16 ponds assumed to be uniform in every aspect. Final mean weights (g) of fish are recorded after 150 days as follows: If you are to recommend to the fish farmers the combination of chicken manure and urea for the optimum tilapia growth, what would it be? Explain concisely your recommendation based on the result of your statistical analysis. Urea per ha/week 0 kg 60 kg CM per ha/week 100 kg 200 kg 150.6 173.8 128.9 161.3 137.2 155.6 130.5 166.4 225.1 320.4 210.6 301.9 218.5 296.4 224.3 306.7
Let X 1 , … , X n be identically and independently distributed with population mean 9.3 and standard deviation 1.400. Let xbar be the sample mean, xbar = 1 n ∑ i = 1 n X i. Suppose n = 14. What is the mean squared error (MSE) of 0.742*xbar as an estimator for the population mean?
Suppose the mean retail price oer gallon of regular gasoline int the United States is $3.42 with a standard eviation of $0.40 and the retail price per gallon has a normal bell shaped distribution. Use the Empirical Rule to answer the following quesitona. What percentage of regular gasoline sold between $2.62 and $3.82 per gallon? what percentage of regualr gasoline sold for more the $3.82 per gallon?
One important consideration in determining which location is best for a new retail business is the amount of traffic that passes the location each business day. Counters are placed at each of four locations on the five weekdays, and the number of cars passing each location is recorded in the table below. At 0.05 level of significance, is there sufficient evidence of a significant difference in the mean number of cars per day at the four locations?Using MS Excel,what is the computed value of the F statistic ? * Location II II IV 45 48 44 39 50 60 50 49 39 40 38 39 44 45 42 40 42 43 44 43 0.76 2.23 1.19 0.84
The serum cholesterol levels (in 244, 235, 249, 237, 228, 220, 201, 259, 191, 198, 240, 196, 222, 252, 203, 211, 215, 254 Send data to calculator (a) mg th Find 30 and 75th percentiles for these cholesterol levels. (b) dL (If necessary, consult a list of formulas.) The 30th percentile: -) of 18 individuals are The 75th percentile: mg dL mg dL
The average house has 13 paintings on its walls. Is the mean different for houses owned by teachers? The data show the results of a survey of 12 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 12, 14, 14, 14, 15, 14, 14, 14, 12, 13, 15, 14 What can be concluded at the αα = 0.01 level of significance? For this study, we should use The null and alternative hypotheses would be: H0:H0: H1:H1: The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is αα Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The data suggest the population mean is not significantly different from 13 at αα = 0.01, so there is sufficient evidence to conclude that the population mean number of paintings that are in teachers' houses is equal to 13. The data…

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