What's NewActivity 1: KNOWING MO NA?Instruction: Read and analyze the following situations. Determine whether the following statementshave a known or unknown population variance. Write your answer on the space provided. Identify alsothe formula to be used to estimate the standard error of the mean by writing the symbol ơz, when thepopulation variance is known and the symbol sg when the population variance is unknown.SituationAnswerStandard ErrorFormula| 1. Because of Inclusive Education, learners withdisabilities are also part of the normal students.Consider a population of the PWD learners consistingof 1, 2, 3, 4, and 5. Samples of size 2 are drawn fromthis population.|2. Given µ = 15, s = 6 and n= 163. IQ scores are normally distributed with standard| deviation o = 15 points. You wish to determine the uIQ of all students in Mangaldan National High School| by taking a random sample of 16 students.| 4. The general weighted average (GWA) of the Grade11 applicants for admission in UPCAT over the past 7years has been consistently µ= 92.78. This year asample data of the applicant's GWA are 98, 89, 92, 95,96, 90, 91, 92, 97 and 93.5. A finite population composed of six items whosevalues are 2, 3, 6, 7, 8, and 10. Samples of 3 items aredrawn at random without replacement.

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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In 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.
I finished first in the high jump and third in the pole vault. determine whether the data described are nominal or ordinal?
Use the birth weights (grams) of 50 babies from the data set "Births." Use software or a calculator to find the mean and median. Examine the list of birth weights to make an observation about those numbers. How does that observation affect the way that the results should be rounded? Click the icon to view the birth weight data. - X The mean birth weight is Birth weights (grams) grams. (Round to one decimal place as needed.) 300 4900 4000 3600 3400 3000 3700 2900 3700 3100 3400 3500 4100 3200 2900 2800 3500 3100 3300 3800 3800 2300 3300 2600 2400 3400 3300 4000 2800 3600 3100 2800 2800 2500 2600 2700 2600 3000 2900 3600 300 3400 3500 3400 3600 3400 3200 2600 3600 3500
Scores on a mathematics assessment test for eighth-graders have a mean of 284, a 10th percentile of 232, a 25th percentile of 256, a 75th percentile of 310, and a 90th percentile of 328. Interpret each of these numerical descriptive measures. Interpret the mean value of 284. Choose the correct answer below. OA. For this problem, the mean value of 284 represents the average test score on a mathematics assessment test for eighth-graders B. For this problem, the mean value of 284 represents the middle test score when the scores are arranged in ascending (or descending) order OC. For this problem, the mean value of 284 represents the variation in the test scores on a mathematics assessment test for eighth-graders D. For this problem, the mean value of 284 represents the range of test scores on a mathematics assessment test for eighth-graders
For the data in the table, find the mean and the median of the monthly high temperatures. Then do the same for the monthly low temperatures. The mean of the high temperatures is ______F (type an integer or a decimal.) Month High low Jan 17 8 Feb 23 13 Mar 30 19 Temperatures are in degrees fahrenheit Apr 41 28 May 54 43
Determine each variable's type - quantitative (discrete or continuous) or categorical. This will help determine which graphical display to use. See the extra sheet in the Excel file. Create a histogram with one of the quantitative variables. You decide the appropriate number of bins. Copy and paste to a Word/pdf document. Comment on the histogram's center, variability, shape, and any unusual values. Create a pie chart or bar chart with one of the categorical variables. Copy and paste to your Word/pdf document. Comment on what you see in the pie/bar chart. Create another visualization of your choice. Comment on the variable and visualization you selected and what relationships, patterns, or insights you found.
Find the mean, variation, and standard deviation
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, 233
Paul wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 100 randomly selected students in the school. What is the parameter?
Thao earned the following scores on her six management exams last semester. 79, 79, 42, 88, 79, 93 Ф Find the mean, the median, and the mode for Thao's scores. The mean for Thao's scores is (Type an integer or a decimal. Round to the nearest hundredth as needed.)
Use the data in the following table, which lists carbon dioxide concentrations (in parts per million) for each year from 1960 to 2009, with projected values used for the last four years. After finding the values of the mean and range for each decade, find the values of x, and R. Also find the values of LCL and UCL for an R chart, and find the values of LCL and UCL for an x chart. 1960s 318.4 319.5 321.8 322.9 324.8 325.4 326.9 328.5 330.3 331.4 1970s 333.4 334.6 335.5 337.1 339.3 340.4 341.4 343.1 344.7 346.5 1980s 348.1 348.8 351.2 352.1 353.8 355.4 356.9 358.5 359.8 360.6 1990s 361.9 363.6 365.8 366.7 368.6 369.2 371.7 372.4 373.5 375.2 2000s 377.6 378.7 379.6 381.8 382.8 384.2 386.3 387.6 388.7 390.5 x=enter your response here (Round to three decimal places as needed.) Part 2 R=enter your response here (Round to two decimal places as needed.) Compute the values of LCL and UCL for an R chart. LCL=enter your response here, UCL=enter your response here (Round to…
The table available below shows the weights (in pounds) for a sample of vacuum cleaners. The weights are classified according to vacuum cleaner type. At a = 0.10, can you conclude that at least one mean vacuum cleaner weight is different from the others? E Click the icon to view the vacuum cleaner weight data. Let PBu, PBLU. and HTC represent the mean weights for bagged upright, bagless upright, and top canister vacuums respectively. What are the hypotheses for this test? O A. Ho: Peu = HBLU "HTC Ha: HBu * HBLU HTC Weight of Vacuum Cleaners by Type B. Ho: At least one of the means is different. Hg: PBu = HBLU =HTC O C. Ho: HBU PBLU HTC Bagged upright 21 20 18 15 23 24 16 24 Bagless upright Top canister 17 18 20 18 Hg: HBu = HBLU =HTC 23 22 24 26 20 23 O D. Ho: HBU HBLU FHTC Ha: At least one of the means is different. What is the test statistic? Print Done F= (Round to two decimal places as needed.) What is the P-value? P-value = (Round to three decimal places as needed.) What is the…

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