A magazine collects data each year on the price of a hamburger in a certain fast food restaurant in various countries around the world. The price of this hamburger for a sample of restaurants in Europe in January resulted in the following hamburger prices (after conversion to U.S. dollars). 5.14 4.97 4.08 4.64 5.26 4.68 4.19 4.94 5.17 5.57 5.35 4.60 The mean price of this hamburger in the U.S. in January was $4.63. For purposes of this exercise, assume it is reasonable to regard the sample as representative of these European restaurants. Does the sample provide convincing evidence that the mean January price of this hamburger in Europe is greater than the reported U.S. price? Test the relevant hypotheses using a = 0.05. (Use a statistical computer package to calculate the P-value. Round your test statistic to two decimal places and your P-value to four decimal places.) t = P-value= State your conclusion. O Reject Ho. We have convincing evidence that the mean price of a hamburger in a certain fast food restaurant in Europe is greater than $4.63. O Reject Ho. We do not have convincing evidence that the mean price of a hamburger in a certain fast food restaurant in Europe is greater than $4.63. O Do not reject Ho. We have convincing evidence that the mean price of a hamburger in a certain fast food restaurant in Europe is greater than $4.63. O Do not reject Ho. We do not have convincing evidence that the mean price of a hamburger in a certain fast food restaurant in Europe is greater than $4.63.

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Find the Lower Control Line(LCL) for X bar Chart for the following data. (Approximate answer to two decimal places) 1.56 3.48 3.39 2.96 4.24 2.16 3.02 3.46 3.03 4.46 1.33 3.18 3.38 2.97 4.98 2.16 2.95 3.43 3.36 5.78 1.32 3.33 2.94 3.36 5.37 As = 0.577, D5 = 2.115, %3! %3D

The following table summarizes the grade point averages (GPAs) of graduatestudents in a statistics class. Approximate the mean GPA of the class.

The highway speeds of 100 cars are summarized in the frequency distribution below. Find the estimated mean speed. Speed (mph) 30-39 40-49 50-59 60-69 70-79 Cars 3. 16 50 18 13 O A. 59.5 mph O B. 62.4 mph O C. 22.8 mph O D. 56.7 mph

A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 The 75th percentile is 5 8.5 9 10

Given the following data set that presents 30 test scores on an exam, find the 95th percentile. State your result/answer as a value with exactly two digits after the decimal  49.5, 48, 51, 50, 53.2, 52, 55, 54, 57, 56, 59, 58, 61, 60, 63, 62, 65.4, 64, 67.5, 66, 69, 68, 71, 70, 73, 72, 75.2, 74, 92, 88

Consider the dataset below.   44 72 74 78 102 Find the percentile rank of 44.