T: Test Statistic The symbol and value of the random variable on this problem are as follows: This computation assumes you calculated L3 as L3= L1 - L2. Round your answers to 1 decimal places. Select an answer v = cars Set up the formula for the test statistic with numbers to 1 decimal places: d t = Final answer from technology to 2 decimal places: t = 0: Obtain the P-value Report the final answer to 4 decimal places. It is possible when rounded that a p-value is 0.0000 P-value = M: Make a decision Since the p-value |? v we Select an answer v . S: State a conclusion . There is not significant evidence to conclude The mean traffic count of all locations on a Friday the 6th differs from The mean traffic count of all locations on a Friday the 13th wThe British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did a traffic count (in cars) on a Friday 6th and then again on a Friday the 13th at the same location. The data for a random sample of locations on the two different dates are in the table below. Do the data show that on average fewer people drive on Friday the 13th? a) Test at the 1% level. b) Compute a 98% confidence interval for the difference. Traffic counts at locations on Friday the 6th Traffic counts at locations on Friday the 13th in cars] in cars) 123552 21641 121139 118723 124631 120249 117584 117263 134012 132908 128293 123532 124609 122770 133732 131843 Part a. ) HYPOTHESIS TEST P: Parameter What is the correct parameter symbol and wording for population 1? n, = The mean traffic count of 8 randomly selected locations on a Friday the 6th w What is the correct parameter symbol and wording for population 2? P, = The traffic count of a randomly selected location on a Friday the 13th H: Hypotheses Assuming L3 is computed as L3 = L1 - L2, pick the correct set of hypotheses for this problem.: Ho : a cars HA : a cars A: Assumptions Since qualitative information was collected from each object, we need to check the followingSince qualitative information was collected from each object, we need to check the following conditions: Check all that apply. Ox > 10 and 12 2 10 On - 1 2 10 and n2 - 72 2 10 OM 2 20n] and N2 2 20n2 O The samples are independent The samples are dependent Normal population of differences or at least 30 pairs of data Normal populations or n1 2 30 and n2 2 30 No outliers in the differences O No outliers for each group Oo is unknown for each group Do is known for each group Check those assumptions: 1. There were not w/two measurements taken on the same object, so these samples are independent 2. Is the value of o unknown for each group? No 3. Are there any outliers in the differences? Yes, the histogram shows outliers 4. n = which is 2 Is it reasonable to assume the population is normally distributed? No, since the normal probability plot of the differences is not roughly bell-shaped. V N: Name the test The conditions are met to use a [2-Proportion Z-Test )