A quality control engineer needs to ensure that the caps on shampoo bottles are fastened correctly.If the caps are fastened too loosely, they may fall off during shipping. The target torque value forfastening the caps is 18. The engineer collects a random sample of 68 bottles and tests the amountof torque that is needed to remove the caps.Histogram of Torque1412101216202428Torque1. What are the cases in this study? [Select][ Select ]2. The shape of the data distribution can be best described as3. Using the the histogram, the exact sample mean and median values can be determined[ Select ]4. Based on the histogram, the 5th percentile of the torque values is likely closest tov ( Select ]cannot beletermined12kely interval containing the lower quartile is15[Select ]Frequency A quality control engineer needs to ensure that the caps on shampoo bottles are fastened correctly.If the caps are fastened too loosely, they may fall off during shipping. The target torque value forfastening the caps is 18. The engineer collects a random sample of 68 bottles and tests the amountof torque that is needed to remove the caps.Histogram of Torque14121012162024283236Torque1. What are the cases in this study? [ Select][ Select ]2. The shape of the data distribution can be best described as3. Using the the histogram, the exact sample mean and median values can be determined[ Select]4. Based on the histogram, the 5th percentile of the torque values is likely closest to[ Select ]5. Based on the histogram, a likely interval containing the lower quartile isV [ Select ] Ncannot be determinedO to 1515 to 36MacBook Air8Frequency

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Description: A quality control engineer needs to ensure that the caps on shampoo bottles are fastened correctly.If the caps are fastened too loosely, they may fall off during shipping. The target torque value forfastening the caps is 18. The engineer collects a

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1. What are the cases in this study? [ Select] [ Select ] 2. The shape of the data distribution can be best described as 3. Using the the histogram, the exact sample mean and median values can be determined [ Select ]

1. What are the cases in this study? [ Select] [ Select ] 2. The shape of the data distribution can be best described as 3. Using the the histogram, the exact sample mean and median values can be determined [ Select ]

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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4 Ms. Lisa Monnin is the budget director for Nexus Media Inc. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information. Sales ($) Audit ($) 125 137 147 162 136 142 128 107 130 141 141 108 140 At the 0.01 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? Click here for the Excel Data File 1. State the decision rule. (Round your answer to 3 decimal places.) Reject Ho if t> 2. Compute the pooled estimate of the population variance. (Round your answer to 2 decimal places.) Pooled variance 3. Compute the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 4. State your decision about the null hypothesis. (Click to select) Ho: H₂ Ha 5. Estimate the p-value. (Round your answers to 3 decimal places.) p-value (Click to select) Sales 125 137 147 162 136 142 Audit 128 107 130 141 141 108 140
The average house has 14 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 15, 13, 16, 16, 17, 14, 14, 15, 13, 13, 15, 16, 15, 16 What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H: ?v Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of paintings that are in teachers' houses is not significantly more than 14 at a = 0.01, so there is insufficient evidence to conclude that…
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Consider the distribution of scores of 15 students: 83, 72, 87, 79, 75, 82, 76, 77, 73, 86, 81, 79, 82, 79, 74. 6. The median score is... 7. The mean score is... 8. The mode is... 9. The given distribution is...
Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given question. Listed below are foot lengths in inches of randomly selected women in a study of a country's military in 1988. Are the statistics representative of the current population of all women in that country's military? 9.3 9.9 9.1 9.9 8.7 9.4 10.4 9.5 8.8 9.1 9.1
Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given question. Listed below are foot lengths in inches of randomly selected women in a study of a country's military in 1988. Are the statistics representative of the current population of all women in that country's military? 9.9 8.6 9.8 8.6 9.3 8.7 10.3 9.4 10.5 9.8 9.8 O a. Find the mean. The mean is inch(es). (Type an integer or a decimal rounded to two decimal places as needed.) b. Find the median. The median is inch(es). (Type an integer or a decimal. Do not round.) c. Find the mode. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode(s) is(are) inch(es). (Type an integer or a decimal. Do not round. Use a comma to separate answers as needed.) O B. There is no mode. d. Find the midrange. The midrange is inch(es). (Type an teger or a decimal. Do not round.) e. Are the statistics representative of the current population of all…
Find and interpret the measure of the position of the Q2 median.
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1. A furniture store reduces the prices of sofas in an autumn sale. The number of sofas sold during the 19 days of the sale were: 41, 44, 48, 55, 40, 44, 45, 42, 55, 55, 36, 36, 51, 47, 41, 38, 43, 48, 53 Work out the median and the lower and upper quartiles for the number of sofas sold in (3) the sale.
Compute the measures of central tendency (mean, median, mode) and the measures of variation(range, variance, standard deviation) of the following and provide a detailed explanation of howyou come up with your answer. a. Consider the data as POPULATION 6,8,8,10,10,10,10,10,12,12,14 b. Consider the data as SAMPLE 6,6,6,8,8,10,12,12,14,14,14
a. (True or False) The weekly consumption of favorite beverages from this survey hasapproximately a normal distribution, explain your decision. b. Based on the histogram, which one is greater: mean or median? Explain why.c. Which summary statistic would be a better representation of the center for this sample:mean or median?