### Practice Problems:An investigator wants to test the claim that there is no difference of a new weight loss medication at reducing BMI (kg/m²). Suppose the following table represents the results from a Simple Random Sample (SRS) of individuals enrolled in the study. Assume a normal approximation is acceptable. (α = 0.01)#### Table:| Patient | BMI pre test | BMI post test ||---------|--------------|---------------|| A | 30.5 | 26.5 || B | 32.8 | 28.3 || C | 35.6 | 28.2 || D | 34.7 | 27.9 || E | 30.1 | 28.5 |The table above lists the BMI of five patients before and after the test period involving the weight loss medication.#### Questions:A) What type of t-test is this?B) Write out your null and alternative hypotheses.C) Calculate a t-stat.D) t-crit = ±E) p-value =G) Reject or fail to reject the null hypothesis.H) Construct a 99% confidence interval and provide an interpretation. Does your interval further support your decision in the hypothesis test above?

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Description: ### Practice Problems:An investigator wants to test the claim that there is no difference of a new weight loss medication at reducing BMI (kg/m²). Suppose the following table represents the results from a Simple Random Sample (SRS) of individuals en

If the data is paired, then to compare the means the paired t-test is used. This test uses the…

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An investigator wants to test the claim that there is no difference of a new weight loss medication at reducing BMI (kg/m²). Suppose the following table represents the results from a SRS of individuals enrolled in the study. Assume a normal approximation is acceptable. (a=.01) Patient BMI pre test BMI post test A 30.5 26.5 B 32.8 23.3 35.6 23.2 34.7 27.9 30.1 28.5 A) What type of t-test is this? B) Write our your null and alternative hypotheses C) Calculate a tstatl

An investigator wants to test the claim that there is no difference of a new weight loss medication at reducing BMI (kg/m²). Suppose the following table represents the results from a SRS of individuals enrolled in the study. Assume a normal approximation is acceptable. (a=.01) Patient BMI pre test BMI post test A 30.5 26.5 B 32.8 23.3 35.6 23.2 34.7 27.9 30.1 28.5 A) What type of t-test is this? B) Write our your null and alternative hypotheses C) Calculate a tstatl

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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QUESTION 12 In the video game Animal Crossing: New Horizons, you can catch and sell both fish and sea creatures. Alison learns that sea creatures sell for a mean of u = 3,345 bells with a standard deviation of o = 3,684 bells ("bells" is the currency in the game). Alison suspects that fish will sell for more money than sea creatures will, so she decides to conduct a hypothesis test at the a = 0.01 level with %3D %3D Họ: µ= 3,345 bells H1: p > 3,345 bells She finds a sample of 64 fish and computes their mean price to be 3,527 bells. a. Determine the standard error to the nearest thousandth. Ox = Work: b. Determine the z-score to the nearest hundredth. Z = Work: c. Identify the image below that best represents the standard normal curve you drew for this problem. A В C
Researchers wants to determine if low-fat diets or low-carb diets are more effective for weight loss. Suppose 100 people were placed on a low-fat diet and at the end of 3 months the mean weight loss was 10.5 lbs witha standard deviation of 12.5 lbs. There were another 100 people placed on a low-carb diet and at the end of 3 months the mean weight loss was 16.5 lbs with a standard deviation of 10.2 lbs. Does mean weight lossdiffer between the two diets? What are the hypotheses??