In a large clinical trial, 393,094 children were randomly assigned to two groups.The treatment group consisted of 196,644 children given a vaccine for acertain disease, and 40 of those children developed the disease. The other196,450 children were given a placebo, and 146 of those children developed thedisease. Consider the vaccine treatment group to be the first sample. Identify thevalues of n₁, p₁, q₁, n2, P2, 92, P, and q.1n₁ = 196644P₁ =(Type an integer or a decimal rounded to eight decimal places as needed.)

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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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High levels of cholesterol in the blood are associated with higher risks of heart attacks. Will using a drug to lower blood cholesterol reduce heart attacks? The Helsinki Heart Study recruited middle-aged men with high cholesterol but no history of other serious medical problems to investigate this question. The volunteer subjects were assigned at random to one of the two treatments: 2051 men took the drug gemfibrozil to reduce their cholesterol levels, and a control group of 2030 men took a placebo. During the next five years, 56 men in the gemfibrozil group and 84 in the placebo group had heart attacks. Is the difference statistically significant at the alpha = 0.01 level?
High levels of cholesterol in the blood are associated with higher risk of heart attacks. Will using a drug to lower blood cholesterol reduce heart attacks? The Helsinki Heart Study recruited middle-aged men with high cholesterol but no history of other serious medical problems to investigate this question. The volunteer subjects were assigned at random to one of two treatments: 2051 men took the drug gemfibrozil to reduce their cholesterol levels, and a control group of 2030 men took a placebo. During the next five years, 56 men in the gemfibrozil group and 84 men in the placebo group had heart attacks. Is the apparent benefit of gemfibrozil statistically significant? What is the value of the combined proportion (c)? Round to four decimal places
In the US, 45.1% of all people have type O blood, 40.9% have type A blood, 10.6% have type B blood and 3.4% have type AB blood. A researcher wants to see if the distribution of blood type is different for millionaires. The table below shows the results of a random sample of 3564 millionaires. What can be concluded at the αα = 0.10 significance level? Complete the table by filling in the expected frequencies. Round to the nearest whole number: Outcome Frequency Expected Frequency O 1590 A 1477 B 388 AB 109 What is the correct statistical test to use? What are the null and alternative hypotheses?H0: The distribution of blood type for millionaires is the same as it is for Americans in general. Blood type and income are independent. Blood type and income are dependent. The distribution of blood type for millionaires is not the same as it is for Americans in general. H1: The distribution of blood type for millionaires is not the same as it is for…
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9
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In a large clinical trial, 396,565 children were randomly assigned to two groups. The treatment group consisted of 199,919 children given a vaccine for a certain disease, and 30 of those children developed the disease. The other 196,646 children were given a placebo, and 105 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n,, P1, 91, n2. P2, 92. p, and q. Enter your answer in the answer box and then click Check Answer. Check Anwer Clear All 7 parts remaining MacBook Air क 19 * ES F7 吕0 F4 esc FI F2 $ % & delele %23 5 7 4 T Y Q W E tab つ F G S レン * 00 つエく0

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