attempt.php?attempt-295788cmid-9447&page-5 The box plots below represent the lifetime (in months) for two brands of car battery. What is the best measure of dispersion for MARATHON brand? Give Reason. Marathon Energysia Answer: 62 63 64 65 99 5 4 73 72 1 70 69 68 67
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![attempt.php?attempt-295788cmid-9447&page-5
The box plots below represent the lifetime (in months) for two brands of car battery.
What is the best measure of
dispersion for MARATHON brand?
Give Reason.
Marathon
Energysia
Answer:
62
63
64
65
99
5 4 73 72 1 70 69 68 67](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9e4a32cf-1467-48b6-97aa-07a67e141e86%2Fb51613c4-ca2b-42e5-b430-a863931b7e67%2Fl7j468n_processed.png&w=3840&q=75)
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- The current temperature is 54 °F, convert the temperature to Celsius. 12.2°C 30.7°C 40.5°C 95.1°C 000The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.16 represents 6,160,000 shares traded), represent the volume of a PepsiCo stock traded for a random sample of 38 trading days in 2018. A second random sample of 38 days in 2018 resulted in the data in the second accompanying table. Complete parts (a) through (d). EX Click here to view the data for sample 1. Click here to view the data for sample 2. Click here to view the table of critical t-values. .... (a) Use the data from sample 1 to compute a point estimate for the population mean number of shares traded per day in 2018. A point estimate for the population mean number of PepsiCo shares traded per day in 2018 is (Round to two decimal places as needed.) million. Sample 1 Volumes (millions 6.16 4.98 5.55 4.28 7.28 6.39 4.02 6.69 5.32 5.05 4.95 3.25 4.92 4.41 4.97 5.07 4.80 6.92 4.16 Sample 1 7.54 8.88 7.56 6.10 4.00 6.22 4.64 6.96 6.71 2.37 4.84…Sunspot Numbers Listed below in order by row are annual sunspot numbers beginning with 1980. Is the best model a good model? Carefully examine the scatterplot and identify the pattern of the points. Which of the models fits that pattern?
- Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made the time period of January 1 to March 31. The table gives the defect and the number of defects. Do the data support the notion that each defect type occurs in the same proportion? Test at the 5% level. Number of Defective Lenses Defect type Number of defects Scratch 1866 Right shaped - small 1935 Flaked 1979 Wrong axis 1921 Chamfer wrong 1864 Crazing, cracks 1991 Wrong shape 2004 Wrong PD 1895 Spots and bubbles 1917 Wrong height 1885 Right shape - big 1875 Lost in lab 1886 Spots/bubble - intern 1935 State the hypotheses.H0: Each defect type in the same proportion.Ha: Each defect type in the same proportion. Calculate the χ2 test statistic. Round expected values to two decimal places. Round χ2 to three decimal places.χ2 = Calculate the p-value. Round to four decimal places.p-value = State your decision.Since p-value 0.05,…Use the data set to answer the following questionsIn California, they need more rain to sustain the health of the natural environment, state argriculture, and state economy. A group of statistics students in Oxnard College recorded the amount of rain during 2016-2017 school year, measuring the intensity by the inches of rain, and the results were: Daily Rain Amounts Inches of Rain 1 2 3 4 5 6 Frequency 7 6 6 3 2 1 The mean rain intensity: ________inches (Please show your answer to 1 decimal place.) The median rain intensity: _______inches The mode rain intensity: _______inches Please separate your answers by a comma if there is more than one mode.
- QUESTION 2 The monthly expenditures on grocery shopping for all households in a town has a mean of $400 and a standard deviation of 75. The distribution of these monthly expenditures is symmetric and bell-shaped. What percentage of households had a monthly expenditure of between $250 and $400 on groceries in this town? O 68% O 34% O 959% O 47.5%The data represent the number of miles traveled by 10 delivery drivers in a community for one day. What is the first quartile of miles driven? GeoGebra Graphing Calculator 261 215 232 218 218, 223, 211, 299, 231, 245, 261, 278, 212, 233Jessica counts how many customers have come into her restaurant for the past 30 days. The table below shows the number of customers per day. 135 137 136 137 138 139 140 139 137 140 142 146 148 145 139 140 142 143 144 143 141 139 137 138 139 136 133 134 132 132 She would like you to create a histogram for her starting at 130 with a bin width of 5. Which bar is the tallest? The first bar The second bar The third bar The fourth bar
- A teacher asks their students whether they studied for a quiz, then scores the quiz. A relative frequency table displays some of the information they collectedThe histogram displays the number of 2008 births among U.S. women ages 10 to 50 . Each bin represents an interval of two years, and the height of each bin represents the frequency with which the data fall within that interval. A histogram for the number of births by mother’s age for 2008. Height of 62 for ages 14 to 16, height of 202 for ages 16 to 18, height of 369 for ages 18 to 20, height of 415 for ages 20 to 22, height of 441 for ages 22 to 24, height of 470 for ages 24 to 26, height of 487 for ages 26 to 28, height of 460 for ages 28 to 30, height of 403 for ages 30 to 32, height of 326 for ages 32 to 34, height of 252 for ages 34 to 36, height of 177 for ages 36 to 38, height of 99 for ages 38 to 40, height of 46 for ages 40 to 42, height of 17 for ages 42 to 44, and height of 4 for ages 44 to 46. Use the provided histogram to answer questions about the number of births for each age group. How many births occurred among women over the age of 38 ? number of births:What percentage…Breast-feedingmothers secrete calcium into their milk. Some of thecalcium may come from their bones, so mothers maylose bone mineral. Researchers measured the percent changein mineral content of the spines of 47 mothers during threemonths of breast-feeding.6 Here are the data: -4.7 -2.5 -4.9 -2.7 -0.8 -5.3 -8.3 -2.1 -6.8 -4.32.2 -7.8 -3.1 -1.0 -6.5 -1.8 -5.2 -5.7 -7.0 -2.2-6.5 -1.0 -3.0 -3.6 -5.2 -2.0 -2.1 -5.6 -4.4 -3.3-4.0 -4.9 -4.7 -3.8 -5.9 -2.5 -0.3 -6.2 -6.8 1.70.3 -2.3 0.4 -5.3 0.2 -2.2 -5.1 (a) The researchers are willing to consider these 47women as an SRS from the population of all nursingmothers. Suppose that the percent change in this population has standard deviation 2.5%. Make a stemplotof the data to verify that the data follow a Normal distribution quite closely. (Don’t forget that you need botha 0 and a 0 stem because there are both positive andnegative values.) (b) Use a 99% confidence interval to estimate the meanpercent change in the population
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