(64) (64) What App picture%20folder/Activity%2010%20Accessible.pdf + Activity 10 Round all probabilities to 3 decimal places 1. YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.5 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set a = 0.01. Use the critical value method to conduct appropriate hypothesis testing. Ho : HA : Type of test (z-test or t-test) : Test statistic: Conclusion: 2. The Department of Education would like to test the hypothesis that the average debt load of graduating students with a Bachelor's degree is not equal to $17,000. A random sample of 34 students had an average debt load of $18.200. It is believed that the population standard deviation for student debt load is $4,200. The Department of Education would like to set a = 0.05. Use the p-value method to conduct appropriate hypothesis testing. Ho : HA : Type of test (z-test or t-test) : P-value: Conclusion: OLD-C 99 W N PAL: 3370879 whatsapp web - Search & 64) (64) WhatsApp op/picture%20folder/Activity%2010%20Accessible.pdf + 3. Toll Brothers is a luxury home builder that would like to test the hypothesis that the average size of new homes exceeds 2,400 square feet. A random sample of 36 newly constructed homes had an average of 2,580 square feet. Assume that the standard deviation of the size for all newly constructed homes is 470 square feet. Toll Brothers would like to set a = 0.05. Use the p-value approach to test this hypothesis. Ho HA : Type of test (z-test or t-test) : P-value: Conclusion: 4. The management of the Green Bay Packers football team would like to test the hypothesis that the average price of a ticket is less than $225 on the secondary market. A random sample of 40 customers paid an average of $207 for their tickets, with standard deviation of $43. The Green Bay Packers would like to set a = 0.01. Use the critical value approach to test this hypothesis. Ho : HA : Type of test (z-test or t-test) : Test statistic: Conclusion: OLDECO N X SP