Given : significance level=alpha=0.10
So,probability=alpha=0.10
Hence,the critical value z=NORMSINV(alpha)=NORMSINV(0.10)=-1.28
Hence,the correct answer is option (B)
Suppose that the National Center for Education Statistics would like to test the hypothesis that the...
The national center for education statistics would like to test the hypothesis that the proportion of bachelor's degrees that were earned by women equals 0.60. A random sample of 140 college graduates with Bachelor degrees found that 75 were women. The national center for education statistics would like to set a= 0.10. The critical value for this hypothesis test would be
Sony would like to test the hypothesis that the average age of a PlayStation user is different from the average age of an Xbox user. A random sample of 36 PlayStation users had an average age of 34.2 years while a random sample of 30 Xbox users had an average age of 32.7 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.9 and 4.0 years, respectively. Sony would like to set α...
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 options: $14,118.9, $19,881.2 $14,839.1, $19,160.9...
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 α is set to 0.05. The confidence interval for this hypothesis test would be ________.
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 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...
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:...
Question 8 3 pts The p-value for a Hypothesis Test of a mean or proportion O All the answers are correct Is based on the probability of the test statistic on out in the relevant tail(s) of the distribution Is twice as large if it is a two-tailed test O is compared with alpha to make a conclusion in a hypothesis test Question 11 3 pts For this problem it would be helpful to have a standard normal table. What...
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 $17,600. A random sample of 28 students had an average debt load of $18,800. It is believed that the population standard deviation for student debt load is $4800. The a is set to 0.05. The confidence interval for this hypothesis test would be ($17,022.05, $20,577.95] ($14,352.73, $20,847.37] O $16,513.53, $18,686.47] [$15,072.93, $20,127.07] Question 20 1...
Question 3 (5 points) Expedia would like to test the hypothesis that the proportion of United Airline flights that arrive on-time is less than 0.80. A random sample of 110 United Airline flights found that 82 arrived on-time. 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...