I want to know the answers and details step by step Fizer (NOT Pfizer) is a pharmaceutical company which has developed a new vaccine for COVID-19. Inorder to bring their vaccine to market, the FDA requires them to demonstrate the efficacy of theirvaccine through clinical trials.With this aim, they conduct the following experiment. N = n + m participants are recruited for arandomized clinical trial.• A subset of n subjects are assigned to the experiment group and receive the real vaccine• And m subjects are assigned to the control group to whom a fake placebo is administered.At a later time, a survey is conducted to see how many of the N = n + m subjects got COVID-19.LetX1, X2,..., Xn72iidBer(0x)be 1/0 variables representing whether each of the n subjects in the experiment group had or didn'thave COVID (respectively). Similarly, letY₁, Y2,..., Ymid Ber(0y)1.be 1/0 variables for the m subjects in the control group.Describe the interpretation for 0x and Oy. What is the interpretation for Oy - Ox?2.Let denote 0 = 0y - Ox. What is the maximum likelihood estimator MLE for ? ComputeVar (ÔMLE).3.Using your answer from part (3) and using the central limit theorem for maximum likelihoodestimators, derive the sampling distribution for OMLE4.In class we saw that there are several ways of constructing a confidence interval, e.g., two-sided, leftone-sided, right one-sided, etc. If you were part of the FDA overseeing this clinical trial; given aconfidence level o, what type of a confidence interval would you like Fizer to report to give in orderto give you an idea of the vaccine's efficacy? What is the interpretation for this sort of a confidenceinterval? 5.Using your answer from parts (3) and (4), derive the expression for the confidence interval at level(1-x), i.e., find land usuch thatCI(0; α) = [la, ¹a].6.The code below contains a snippet for constructing a confidence interval. Complete the code for laand uso that the output of the cell is your confidence interval from part (5) at level a = 0.05.What do you conclude from your answer?

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Answered: Fizer (NOT Pfizer) is a pharmaceutical…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Most cases of cervical cancer are linked to a few strains of the human papilloma virus (HPV). The pharmaceutical company Merck developed a vaccine (Gardisil) against these HPV strains. Worldwide clinical trials followed young women after vaccination or administration of placebo for two to four years for signs of HPV-caused cervical cancer. Based on a sample of 100 women in the Gardisil group, 24 % developed cervical cancer, and based on a sample of 100 women in the placebo group, 34 % developed cervical cancer. Test the claim that the proportion of women who developed cervical cancer in the Gardisil group is less than the proportion of women who developed cervical cancer in the placebo group at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. Fill in the hypotheses below where p₁ denotes the proportion of women who developed cervical cancer in the Gardisil group and p2 denotes the proportion of women who developed cervical…
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Shopping cart abandonment is a major concern for online retailers. This happens when a visitor to the online retailer puts one or more items in their virtual shopping cart but then abandons the cart, leaving the retailer without having made a purchase. To reduce cart abandonment, one online retailer is considering a “pop-up” free shipping offer to visitors who put an item in their virtual shopping cart. The online retailer decided to test the effectiveness of this free shipping offer. During a randomly selected two-week period, 718 visitors to the website placed at least one item in their virtual shopping cart. The retailer offered free shipping to 350 of those visitors; the remainder did not get the offer. Of those who received the free shipping offer, 191 abandoned their carts. Of those who did not receive the offer, 246 abandoned their carts. In the image attached, you will find a 2×2 contingency table with the free shipping offer (Yes/No) by row and cart abandoned (Yes/No) by…
Shopping cart abandonment is a major concern for online retailers. This happens when a visitor to the online retailer puts one or more items in their virtual shopping cart but then abandons the cart, leaving the retailer without having made a purchase. To reduce cart abandonment, one online retailer is considering a “pop-up” free shipping offer to visitors who put an item in their virtual shopping cart. The online retailer decided to test the effectiveness of this free shipping offer. During a randomly selected two-week period, 718 visitors to the website placed at least one item in their virtual shopping cart. The retailer offered free shipping to 350 of those visitors; the remainder did not get the offer. Of those who received the free shipping offer, 191 abandoned their carts. Of those who did not receive the offer, 246 abandoned their carts.Complete the contingency table with actual frequencies (not probabilities), including joint and marginal frequencies, using the information…
Shopping cart abandonment is a major concern for online retailers. This happens when a visitor to the online retailer puts one or more items in their virtual shopping cart but then abandons the cart, leaving the retailer without having made a purchase. To reduce cart abandonment, one online retailer is considering a “pop-up” free shipping offer to visitors who put an item in their virtual shopping cart. The online retailer decided to test the effectiveness of this free shipping offer. During a randomly selected two-week period, 718 visitors to the website placed at least one item in their virtual shopping cart. The retailer offered free shipping to 350 of those visitors; the remainder did not get the offer. Of those who received the free shipping offer, 191 abandoned their carts. Of those who did not receive the offer, 246 abandoned their carts. Complete the contingency table with actual frequencies (not probabilities), including joint and marginal frequencies, using the information…
Shopping cart abandonment is a major concern for online retailers. This happens when a visitor to the online retailer puts one or more items in their virtual shopping cart but then abandons the cart, leaving the retailer without having made a purchase. To reduce cart abandonment, one online retailer is considering a “pop-up” free shipping offer to visitors who put an item in their virtual shopping cart. The online retailer decided to test the effectiveness of this free shipping offer. During a randomly selected two-week period, 718 visitors to the website placed at least one item in their virtual shopping cart. The retailer offered free shipping to 350 of those visitors; the remainder did not get the offer. Of those who received the free shipping offer, 191 abandoned their carts. Of those who did not receive the offer, 246 abandoned their carts. 1. Complete the contingency table with actual frequencies (not probabilities), including joint and marginal frequencies, using the information…

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