Question 10 (5 points)
Many hotel chains that offer free WiFi service to their customers have experienced increasing demand for Internet bandwidth and increasing costs. Marriott International would like to test the hypothesis that the proportion of customers that are carrying two WiFi devices exceeds 0.40. A random sample of 130 Marriott customers found that 63 have two WiFi devices. Marriott International would like to set α = 0.05. The critical proportion for this hypothesis test would be ________.
Question 10 options:
0.427 

0.443 

0.471 

0.504 
Question 11 (5 points)
CoStar would like to test if the vacancy rate for "warehouse" stores is more than 8%. A random sample of 85 warehouse stores was selected and the number of vacant stores was counted. Assume that the true population proportion of vacant warehouse stores is 0.125. Using α = 0.05, beta equals ________.
Question 11 options:
0.3627 

0.4091 

0.5557 

0.7188 
Question 12 (5 points)
Breyers is a major producer of ice cream and would like to test the hypothesis that the average American consumes more than 17 ounces if ice cream per month. A random sample of 15 Americans was found to consume an average of 18.2 ounces of ice cream last month. The standard deviation for this sample was 3.9 ounces. Breyers would like to set α = 0.10. The critical sample mean for this hypothesis test would be ________.
Question 12 options:
17.07 

17.46 

17.90 

18.35 
Question 10 (5 points) Many hotel chains that offer free WiFi service to their customers have...
Many hotel chains that offer free Wi Fi service to their customers have experienced increasing demand for Internet bandwidth and increasing costs. Marriott International would like to test the hypothesis that the proportion of customers that are carrying two Wi Fi devices exceeds 0.60. A random sample of 120 Marriott customers found that 78 have two Wi Fi devices. Marriott International would like to set α = 0.01. The test statistic for this hypothesis test would be _______. 1.80 1.58 1.12...
Many hotel chains that offer free Wi Fi service to their customers have experienced increasing demand for Internet bandwidth and increasing costs. Marriott International would like to test the hypothesis that the proportion of customers that are carrying two Wi Fi devices exceeds 0.60. A random sample of 120 Marriott customers found that 78 have two Wi Fi devices. Marriott International would like to set α = 0.01. The correct hypothesis statement for this hypothesis test would be ___________________________. H0: p...
Many hotel chains that offer free Wi Fi service to their customers have experienced increasing demand for Internet bandwidth and increasing costs. Marriott International would like to test the hypothesis that the proportion of customers that are carrying two Wi Fi devices exceeds 0.60. A random sample of 120 Marriott customers found that 78 have two Wi Fi devices. Marriott International would like to set α = 0.01. The correct hypothesis statement for this hypothesis test would be ___________________________. H0:...
Breyers is a major producer of ice cream and would like to test the hypothesis that the average American consumes more than 17 ounces if ice cream per month. A random sample of 15 Americans was found to consume an average of 18.2 ounces of ice cream last month. The standard deviation for this sample was 3.9 ounces. Breyers would like to set α = 0.10. The critical sample mean for this hypothesis test would be Options: 17.07 17.46 17.90...
Question 13 (5 points) A professor would like to assess the hypothesis that the average number of minutes that a student needs to complete a statistics trial is equal to 45 minutes. The correct hypothesis statement would be Question 13 options: a) H0: μ = 45; H1: μ > 45. b) H0: μ = 45; H1: μ ≠ 45. c) H0: μ ≠ 45; H1: μ = 45. d) H0: μ = 45; H1: μ < 45. Question 14 (5...
Question 5 (5 points) Expedia would like to assess the hypothesis that the proportion of United Airline flights that arrive ontime is less than 0.80. A random sample of 110 United Airline flights found that 82 arrived ontime. Expedia would like to set α = 0.02. The pvalue for this hypothesis test would be ________. Question 5 options: a) 0.0322 b) 0.0448 c) 0.0764 d) 0.0912
Question 7 (5 points) The National Association of Realtors would like to test the hypothesis that 26% of home buyers in the state of Florida are foreigners in 2012. A random sample of 110 home buyers was selected and the number of foreigners was counted. Assume that the true proportion of home buyers that are foreigners is 0.216. Using α = 0.10, beta equals ________. Question 7 options: 0.8615 0.7222 0.5012 0.2273 Question 8 (5 points) The critical value for...
Question 16 (5 points) The Department of Education would like to test the hypothesis that the average debt load of graduating students with a Bachelor's degree is 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 α = 0.05. The critical sample means for this hypothesis test would be ________. Question...
Question 3 (5 points) Expedia would like to test the hypothesis that the proportion of United Airline flights that arrive ontime is less than 0.80. A random sample of 110 United Airline flights found that 82 arrived ontime. Expedia would like to set α = 0.02. The critical value for this hypothesis test would be ________. Question 3 options: 1.28 1.645 2.05 2.33 Question 4 (5 points) A golfer claims that his average golf score at the course he plays...
1. You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 8 customers and find that the average dollar amount spent per transaction per customer is $106.745 with a standard deviation of $13.7164. Create a 95% confidence interval for the true average spent on all customers per transaction. Question 1 options: 1)...