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Activity 2: Identify the appropriate test statistic (z-test or t-test) to be used in each problern and provide a short and complete explanation why that test statistic is applicable for given problem (maximum of 3 sentences). 1. The waiting time to be seated at the restaurant has population standard deviation of 10 minutes. An expensive restaurant claims that the average waiting time for dinner is approximately 1 hour, but we suspect that this claim is inflated to make the restaurant appear more exclusive and successful. A random sample of 30 customers yielded a sample average waiting time of 50 minutes. 2. On average, a drinking vending machine is adjusted so it dispenses 240ml of fruit juice with a standard variation of 15ml. However, the machine tends to go out of adjustment and periodic checks are made to determine the average amount of fruit juice being dispensed. A sample of 28 with mean of 200ml in plastic cup drinks is taken to test the adjustrment of the machine. 3. Uber company claims that the mean time to rent a car on their app is 60 seconds. A random sample of 36 customers with a standard deviation of 30 seconds attempted to rent a car on the app. The mean time of renting was 75 seconds. Is this enough evidence to contradict the company's clairn?

Activity 2: Identify the appropriate test statistic (z-test or t-test) to be used in each problern and provide a short and complete explanation why that test statistic is applicable for given problem (maximum of 3 sentences). 1. The waiting time to be seated at the restaurant has population standard deviation of 10 minutes. An expensive restaurant claims that the average waiting time for dinner is approximately 1 hour, but we suspect that this claim is inflated to make the restaurant appear more exclusive and successful. A random sample of 30 customers yielded a sample average waiting time of 50 minutes. 2. On average, a drinking vending machine is adjusted so it dispenses 240ml of fruit juice with a standard variation of 15ml. However, the machine tends to go out of adjustment and periodic checks are made to determine the average amount of fruit juice being dispensed. A sample of 28 with mean of 200ml in plastic cup drinks is taken to test the adjustrment of the machine. 3. Uber company claims that the mean time to rent a car on their app is 60 seconds. A random sample of 36 customers with a standard deviation of 30 seconds attempted to rent a car on the app. The mean time of renting was 75 seconds. Is this enough evidence to contradict the company's clairn?

MATLAB: An Introduction with Applications
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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exam performance? Activity 2: Identify the appropriate test statistic (z-test or t-test) to be used in each problem and provide a short and complete explanation why that test statistic is applicable for given problem (maximum of 3 sentences). 1. The waiting time to be seated at the restaurant has population standard deviation of 10 minutes. An expensive restaurant claims that the average waiting time for dinner is approximately 1 hour, but we suspect that this claim is inflated to make the restaurant appear more exclusive and successful. A random sample of 30 customers yielded a sample average waiting time of 50 minutes. 2. On average, a drinking vending machine is adjusted so it dispenses 240ml of fruit juice with a standard variation of 15ml. However, the machine tends to go out of adjustment and periodic checks are made to determine the average amount of fruit juice being dispensed. A sample of 28 with mean of 200ml in plastic cup drinks is taken to test the adjustment of the machine. 3. Uber company claims that the mean time to rent a car on their app is 60 seconds. A random sample of 36 customers with a standard deviation of 30 seconds attempted to rent a car on the app. The mean time of renting was 75 seconds. Is this enough evidence to contradict the company's clairn? 4. A sample size of n=25 is selected from a normal population with mean of 61, x 56 and o=12. 5. It is assumed that the mean systolic blood pressure is = 120 mm Hg. In the Honolulu Heart Study, a sample of people had an average systolic biood pressure of 130.1 mm Hg with a standard deviation of 21.21 mm Hg. Is the group significantly different (with respect to systolic blood pressure!) from the regular population? Chook tho box:
Transcribed Image Text:exam performance? Activity 2: Identify the appropriate test statistic (z-test or t-test) to be used in each problem and provide a short and complete explanation why that test statistic is applicable for given problem (maximum of 3 sentences). 1. The waiting time to be seated at the restaurant has population standard deviation of 10 minutes. An expensive restaurant claims that the average waiting time for dinner is approximately 1 hour, but we suspect that this claim is inflated to make the restaurant appear more exclusive and successful. A random sample of 30 customers yielded a sample average waiting time of 50 minutes. 2. On average, a drinking vending machine is adjusted so it dispenses 240ml of fruit juice with a standard variation of 15ml. However, the machine tends to go out of adjustment and periodic checks are made to determine the average amount of fruit juice being dispensed. A sample of 28 with mean of 200ml in plastic cup drinks is taken to test the adjustment of the machine. 3. Uber company claims that the mean time to rent a car on their app is 60 seconds. A random sample of 36 customers with a standard deviation of 30 seconds attempted to rent a car on the app. The mean time of renting was 75 seconds. Is this enough evidence to contradict the company's clairn? 4. A sample size of n=25 is selected from a normal population with mean of 61, x 56 and o=12. 5. It is assumed that the mean systolic blood pressure is = 120 mm Hg. In the Honolulu Heart Study, a sample of people had an average systolic biood pressure of 130.1 mm Hg with a standard deviation of 21.21 mm Hg. Is the group significantly different (with respect to systolic blood pressure!) from the regular population? Chook tho box:
ACTIVITY 2 2 3 4
Transcribed Image Text:ACTIVITY 2 2 3 4
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