A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 200,000 children were randomly divided in two groups The subjects in group 1 (the experimental group) were given the vaccine, while the subjects in group 2 (the control group) were given a placebo. Of the 100,000 children in the experimental group, 24 developed the disease. Of the 100,000 children in the control group, 42 developed the disease. Complete parts (a) through (f) below. () Does it appear to be the case that the vaccine was effective? Use the a = 0.05 level of significance. First verify the model requirements. Select all that apply. O A. The data come from a population that is normally distributed. B. The samples are dependent. c. The sample size is more than 5% of the population size for each sample. 'D. The sample size is less than 5% of the population size for each sample. E. n,pi (1-P1) 2 10 and nyP2 (1-P2) 2 10 'F. The samples are independent. Identify the null and alternative hypotheses for this test. Let p, represent the population proportion of children given the vaccine who developed the disease and p2 represent the population proportion of children given a placebo who developed the disease. Họ: P1 * P2 H: P1 * P2

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.