08219 .I '9 I (d) Is the null hypothesis rejected? Is the I alternative hypothesis supported? O Fail to reject H0 and support H1 (claim) 0 Fail to reject H0 (claim) and fail to support H1 0 Reject H0 and fail to support H1 (claim) O Reject H0 (claim) and support H1 (e) Select the correct statement. Q We are sure that, on average, the speed is at most 1.50 Gbps. C) At 0.045 significance level, there is sufficient sample evidence to warrant rejection of the claim that, on average, the new wireless router has increased the speed to at least 1.80 Gbps. Q We prove that the average speed is still 1.50 Gbps. 0 At 0.045 significance level, there is not sufficient evidence to warrant rejection of the claim that, on average, the new wireless router has increased the speed to at least 1.80 Gbps. 0 None of the above. E ideas.humber.ca 08218 .I '9 I Brodski & Sons Telecom Ltd. claims that, on I average, their new design for a wireless router has increased the speed to at least 1.80 Gbps, a big improvement over 1.50 Gbps maximum of the previous version. An independent testing laboratory in Mississauga found that a random sample of 17 of the newest version routers delivered speed of 1.73 Gbps, on average, with a standard deviation of 0.10 Gbps. Test the manufacturer's claim using a 0.045 significance level. Assume that the speeds are approximately normally distributed as the histogram of the sample values is roughly symmetric and bell shaped, so tdistribution is applicable for hypothesis testing. Round to 3 decimal places where appropriate. (a) State the null and alternative hypotheses; identify which hypothesis is the claim and what is the type of the test. H0: Select an answer 0 ? 0 H12 Select an answer C ? 0 Which one is the claim? 0H1 E ideas.humber.ca 08219 . '9 I H1: Select an answer 0 ? 0 Which one is the claim? 0H1 CEO The test is Select an answer 0 . For parts (b), (c) use the correct sign for the critical t-value and test statistic. (b) What is the critical tvalue? (c) What is the test statistic? (ol) Is the null hypothesis rejected? Is the alternative hypothesis supported? O Fail to reject H0 and support H1 (claim) O Fail to reject H0 (claim) and fail to support H1 0 Reject H0 and fail to support H1 (claim) 8 ideas.humber.ca