Show solutions in EXCEL. At one percent level of significance, are the given heights below significantly different?
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At one percent level of significance, are the given heights below significantly different?
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- The cash register receipts each day last week at a coffee shop were $1,845. $1,520. $1,438, $1,682, $1,850, $2,721, $2,539. Find the (a) mean, (b) median, and (c) mode.Find the positive geometric mean between 4 and 64.Use the magnitudes (Richter scale) of the earthquakes listed in the data set below. Find the mean and median of this data set. Is the magnitude of an earthquake measuring 7.0 on the Richter scale an outlier (data value that is very far away from the others) when considered in the context of the sample data given in this data set? Explain. Click the icon to view the earthquake Richter scale data. Find the mean and median of the data set using a calculator or similar data analysis technology. The mean of the data set is . (Round to three decimal places as needed.) The median of the data set is. (Round to three decimal places as needed.) Is the magnitude of an earthquake measuring 7.0 on the Richter scale an outlier when considered in the context of the sample data given? O A. No, because this value is not very far away from all of the other data values. B. Yes, because this value is very far away from all of the other data values. O C. Yes, because this value is the maximum data value. O…
- 2.42 1.44 2.05 0.24 2.78 2.6 2.69 1.02 1.44 1.21 2.85 0.91 1.54 0.37 1.07 0.04 2.41 2.79 1.25 0.63 1.63 2.57 0.01 0.54 0.81 1.81 2.27 0.64 1.65 2.72 0.58 1.68 2.56 2.82 0.17 0.29 1.65 0.18 1.61 0.79 2.33 2.15 2.73 2.93 0.14 2.21 2.16 5. Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.3 miles per hour. Speed (miles per hour) Frequency 42-45 46- 49 50 - 53 54 -57 58-61 22 12 The mean of the frequency distribution is (Round to the nearest tenth as needed.) miles per hour. Which of the following best discribes the relationship between the computed mean and the actual mean? A. The computed mean is not close to the actual mean because the difference between the means is more than 5%. O B. The computed mean is close to the actual mean because the difference between the means is less than 5%. O C. The computed mean is close to the actual mean because the difference between the means is more than 5%. D. The computed…1.542 1.585 1.532 1.466 1.499 1.611 1.598 1.498 1.6 1.504 1.545 1.558 1.622 1.466 1.546 1.494 1.548 1.626 1.555 1.712 1.442 1.443 1.699 1.701 1.44 1.608 1.52 1.478 1.542 1.511 1.698 1.88 1.11 1.21 1.987 1.39 1.459 1.533 1.532 1.523 1.397 1.487 Find a 99% CI on the mean tar content. Find the upper and lower limits.(Do not round off the values until you get the final answer)Internet Users Per 100 Nobel Laureates 78.9 5.5 79.9 24.2 77.7 8.6 45.2 0.1 83.2 6.2 38.6 0.1 89.8 25 89.4 7.7 80.3 8.9 83.7 12.7 53.4 1.9 77.5 12.7 57.2 3.3 78.4 1.5 92 11.5 93.5 25.2 64.7 3.1 58.2 1.9 67.5 1.7 93.4 32 85.6 31.7 87 18.8 77.9 10.9
- Best Actress Best Actor 29. 45 31 .35 30. 36 59. 43 31 .49 32 .50 44 .62 28 .52 61 .40 22. 54 44.46 53. 32WAIST BMI 120.4 33.3 107.8 28.0 120.3 45.4 97.2 28.4 95.1 25.9 112.0 31.1 78.0 20.1 103.5 32.7 89.7 25.8 112.0 36.5 95.0 25.8 115.3 34.5 118.8 37.4 92.6 26.1 75.5 19.3 101.8 29.9 92.5 27.4 100.8 31.4 82.8 21.0 92.9 28.5 120.4 30.8 107.8 31.2 120.3 33.6 97.2 26.7 95.1 24.5 112.0 21.6 78.0 27.4 103.5 29.3 89.7 24.6 112.0 29.1 78.8 23.2 65.8 19.4 114.4 38.9 78.0 21.0 106.8 33.3 112.4 31.8 94.8 27.3 90.6 21.6 95.2 27.1 71.5 20.0What is the standard of 15.50, 15.75, 13.15, 13.75, 17.50, 17.18, 16.05, 15.25, 15.80, 16.10, 17.80, 15.20, 18.01, 17.98, 15.68, 15.20, 18.01, 17.98, 15.68, 15.20, 17.40, 16.00, 15.15, 16.25
- An auto repair store sells a certain brand of all-season tires. They are interested in whether, for front- wheel drive cars, the wear on the front tires is different from than that on the rear tires over the course of a year. They install sets of 4 identical new tires on 30 front-wheel drive cars. After one year, they measure the tread depth (in units of 32") on one randomly selected front tire and on one randomly selected rear tire from each car. Their data are available in the file tire.csv. You may assume that tread depths are normally distributed with common standard deviation. a) Do you expect tread depths to be independent? Explain. b) Construct a 95% confidence interval for the mean difference between tread depth of front tires and tread depth of rear tires over the course of the year. c) Based on your confidence interval in b), does the wear differ for front and rear tires? Explain.S-adenosyl methionine (SAM-e) is a naturally occurring compound in human cells that is thought to have an effect on depression symptoms. Suppose that a researcher is interested in testing SAM-e on patients who are struggling with Alzheimer's. She obtains a sample of n% = 30 patients and asks each person to take the suggested dosage each day for 4 weeks. At the end of the 4-week period, each individual takes the Beck Depression Inventory (BDI), which is a 21-item, multiple-choice self-report inventory for measuring the severity of depression. The scores from the sample produced a mean of M = 26.2 with a standard deviation of s = 2.97. In the general population of Alzheimer's patients, the standardized test is known to have a population mean of p= 28.1. Because there are no previous studies using SAM-e with this population, the researcher doesn't know how it will affect these patients; therefore, she uses a two-tailed single-sample t test to test the hypothesis. From the following,…{51,48,42,43,48,48,46,15,29,45,47,55,46,35,47,48,54,26,53,42} 4. Median = ________________ 5. Mode = _____________________ 6. Five number summary = _________________________________________ 7. Intequartile Range = ________________________________ 8. Outliers are less than ___________________ or more than ____________________ 9. How many outliers are there? 10. What is the shape of the distribution? Positively skewed or negatively skewed or symmetric 11. Based on the answer in question 9, which is better measure of variation; interquartile range or standard deviation? IQR or standard deviation
