Antibiotics for Malnutrition (Example 15) A study was done of children from Malawi (in southeastern Africa) with severe acute malnutrition (Trehan et al. 2013). Of the 922 children randomized to receive amoxicillin in addition to food, 817 recovered. Of the 922 children randomized to receive the placebo and food, 785 recovered. The trial was double-blind. a. Find the percentage that survived in each group, and compare the percentages descriptively. b. Check that the conditions are met. c. Find a 95 % confidence interval for the difference in proportions. It is plausible that the recovery rates are the same. Also state whether receiving the antibiotic treatment (and food) causes a better result than receiving the placebo (and food).
Antibiotics for Malnutrition (Example 15) A study was done of children from Malawi (in southeastern Africa) with severe acute malnutrition (Trehan et al. 2013). Of the 922 children randomized to receive amoxicillin in addition to food, 817 recovered. Of the 922 children randomized to receive the placebo and food, 785 recovered. The trial was double-blind. a. Find the percentage that survived in each group, and compare the percentages descriptively. b. Check that the conditions are met. c. Find a 95 % confidence interval for the difference in proportions. It is plausible that the recovery rates are the same. Also state whether receiving the antibiotic treatment (and food) causes a better result than receiving the placebo (and food).
Solution Summary: The author explains that the percentage of children who survived with amoxicillin is 88.6%, whereas those who recovered with placebo do better.
Antibiotics for Malnutrition (Example 15) A study was done of children from Malawi (in southeastern Africa) with severe acute malnutrition (Trehan et al. 2013). Of the 922 children
randomized to receive amoxicillin in addition to food, 817 recovered. Of the 922 children randomized to receive the placebo and food, 785 recovered. The trial was double-blind.
a. Find the percentage that survived in each group, and compare the percentages descriptively.
b. Check that the conditions are met.
c. Find a
95
%
confidence interval for the difference in proportions. It is plausible that the recovery rates are the same. Also state whether receiving the antibiotic treatment (and food) causes a better result than receiving the placebo (and food).
Please solving problem2
Problem1
We consider a two-period binomial model with the following properties: each period lastsone (1) year and the current stock price is S0 = 4. On each period, the stock price doubleswhen it moves up and is reduced by half when it moves down. The annual interest rateon the money market is 25%. (This model is the same as in Prob. 1 of HW#2).We consider four options on this market: A European call option with maturity T = 2 years and strike price K = 5; A European put option with maturity T = 2 years and strike price K = 5; An American call option with maturity T = 2 years and strike price K = 5; An American put option with maturity T = 2 years and strike price K = 5.(a) Find the price at time 0 of both European options.(b) Find the price at time 0 of both American options. Compare your results with (a)and comment.(c) For each of the American options, describe the optimal exercising strategy.
Problem 1.We consider a two-period binomial model with the following properties: each period lastsone (1) year and the current stock price is S0 = 4. On each period, the stock price doubleswhen it moves up and is reduced by half when it moves down. The annual interest rateon the money market is 25%.
We consider four options on this market: A European call option with maturity T = 2 years and strike price K = 5; A European put option with maturity T = 2 years and strike price K = 5; An American call option with maturity T = 2 years and strike price K = 5; An American put option with maturity T = 2 years and strike price K = 5.(a) Find the price at time 0 of both European options.(b) Find the price at time 0 of both American options. Compare your results with (a)and comment.(c) For each of the American options, describe the optimal exercising strategy.(d) We assume that you sell the American put to a market participant A for the pricefound in (b). Explain how you act on the market…
What is the standard scores associated to the left of z is 0.1446
Elementary Statistics: Picturing the World (7th Edition)
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