8) A machine at BCC cafeteria dispenses a hot cappuccino drink. The average cup of hot cappuccino is supposed to contain an average µ = 8.25 ounces. We may assume that x follows a normal distribution with o = 0.42 ounces. A random sample of 20 cups of hot cappuccino from the machine had a mean content x = 8.12 ounces. Use an a = 0.05 significance level and test whether the mean amount of liquid is less than 8.25 ounces by doing the following: a) Write the null hypothesis Ho and the alternate hypothesis H1

8) A machine at BCC cafeteria dispenses a hot cappuccino drink. The average cup of hot cappuccino is supposed to contain an average µ = 8.25 ounces. We may assume that x follows a normal distribution with o = 0.42 ounces. A random sample of 20 cups of hot cappuccino from the machine had a mean content x = 8.12 ounces. Use an a = 0.05 significance level and test whether the mean amount of liquid is less than 8.25 ounces by doing the following: a) Write the null hypothesis Ho and the alternate hypothesis H1

Name: 8) A machine at BCC cafeteria dispenses a hot cappuccino drink. The a
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Description: 8) A machine at BCC cafeteria dispenses a hot cappuccino drink. The average cup of hotcappuccino is supposed to contain an average µ = 8.25 ounces. We may assume that x follows anormal distribution with o = 0.42 ounces. A random sample of 20 cups of

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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Total blood volume (in ml) per body weight is important in medical research. For healthy adults, the red blood cell volume mean is about 34 ml/kg. Red blood cell that is too low or too high can indicate a medical problem. Suppose that Roger has 20 blood tests and the mean is 35.4 ml/kg. Suppose that red blood cell volume follows normal distribution with standard deviation 2.34 ml/kg. With 5% significance level, test that the mean blood cell volume is different from 28ml/kg. Which test to use? a.) None of the answer choices b.) T-test for the Mean c.) T-test for Proportion d.) Z-test for the Mean e.) Z-test for Proportion
Find the proportion of N.d. observations with a zz-score between z_1 =z1= -2.45 and z_2 =z2= 2.71. Give your answer to four decimal places.
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A public bus company official claims that the mean waiting time for Bus # 14 during peak hours is approximately 10 minutes. Karen took Bus # 14 during peak hours on 36 different occasions. Her mean waiting time was 8.7 minutes. Assume that the population standard deviation o of 2.9 minutes is known. At the 0.01 significance level, test if the mean of all the peak hours waiting time for Bus # 14 is significantly different from 10 minutes.
A manufacturing process produces a critical part of average length 80 millimeters, with a standard deviation of 3 millimeters. All parts deviating by more than 5 millimeters from the mean must be rejected. What percentage of the parts must be rejected, on average? Assume a normal distribution.
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