ingHISKER7. The battery life, in hours, of agroup of 16 laptops is shownbelow.+++←22++2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8Battery Lifea) Identify the lower and upperquartiles.b) What percent of the laptopshave a battery life of at least 6hours?c) How many laptops have a batterylife less than 4.5 hours?5= \\,439,24,23,8. Fifty golfers are competing in agolf tournament. The scores in thefirst round are shown below.a) Identify the minimum andmaximum values.b) What percent of the golfers had ascore greater than 70?++68 6970 71 72 73 74 75 76 77 78 79 80Golf Scoresc) In order to advance to the nextround, golfers can not score above72. How many are not moving on?9. Mr. Athens and Mrs. Gillman gavethe same test to their mathclasses. The scores of each classare shown below.Mr. Athens' Classa) What is the difference in themedian score?b) Which class had the greater rangeof scores?c) Which class do you feel did betteroverall? Explain.H++40 45 50 55 60 65 70 75 80 85 90 95 100Mrs. Gillman's ClassGina Wilson (All Things Algebra®, LLC), 2017MAD =17,92,83e do

For you to understand the data that is presented in a box plot and its location, we will used an…

Answered: ing HISKER 7. The battery life, in…

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Similar questions

What percent of the time will you get something in the range from 60 heads and 40 tails through 40 heads and 60 tails when tossing 100 coins? The total number of microstates in that range is 1.22×1030 .
Eric gave a large bowl of puppy chow to each of 80 puppies and recorded how many ounces of food they ate during a given time period. He kept track of each puppy's breed and the brand of chow they ate. The means for each condition are shown in the table. To answer the questions below, examine the means. Assume differences between means of at least 2 units are significant. Purina Blue Buffalo Border collie 5.35 2.15 Bulldog 3.15 7.70 A. From the data in the table, does it look like there is a significant main effect of the brand of food? а. yes b. no B. If you said there is an effect in the previous question, please describe it. C. From the data in the table, does it look like there is a significant main effect of puppy breed? а. yes b. no D. If you said there is an effect in the previous question, please describe it. E. From the data in the table, does it look like there is a significant interaction? a. yes b. no F. If you said there is an interaction in the previous question, please…
Q2A The World Bank collected data on the percentage of GDP that a country spends on health expenditures ("Health expenditure," 2013) and also the percentage of women receiving prenatal care ("Pregnant woman receiving," 2013). The data for the 15 countries where this information are available for the year 2011 is in the table below: Health Expenditure (% of GDP) Prenatal Care (%) 9.6 47.9 3.7 54.6 5.2 93.7 5.2 84.7 10.0 100.0 4.7 42.5 4.8 96.4 6.0 77.1 5.4 58.3 4.8 95.4 4.1 78.0 6.0 93.3 9.5 93.3 6.8 93.7 6.1 89.8 2. Use technology to determine regression equation between percentage GDP spent on health and percentage of women receiving prenatal care. Enter regression equation the format as follows: y^=a+bx with slope rounded to nearest thousandth and y-intercept value rounded to nearest thousandth. Examples of correctly entered answers: y^=4.913+17.347x y^=7.553-11.225x Linear…
A. Find the ZSTAT B. What is the p-value
A city has 4 voting districts. Records from previous years show the proportion of registered voters that voted in previous elections for each district. A political analyst wants to see if those proportions have changed for this year's upcoming elections. The political analyst randomly samples 123 registered voters and asks them which district they live in and if they have voted yet. H0: Pa = 0.3: Pb = 0.2; Pc = 0.2; Pd = 0.3 Test the claim that there is a difference in the proportions using a α =0.01. Round all answers to at least 4 decimal places. a.) Complete the table: District: A, B, C, D; Observed: 36, 32, 19, 36 ( Respectively, matching Category Letters. Total of Observed: 123) b.) What is the chi-square test-statistic for this data? X 2=______ c. For significance level alpha , what is the chi-square Critical Value? Critical Value = _________________ d. What would be the correct conclusion for this hypothesis test?
2.What percentage of data is represented by the shaded area? Enter your answer as a number, like this: 42%
The accompanying table lists 18 of the largest companies in the world ranked by their market capitalization (in billions of dollars). A company's market capitalization is defined as the number of its shares multiples by the price per share. Complete parts a throuah d below. a. Determine the coefficient of variation. Data Table coefficient of variation = (Round to two decimal places as needed.) b. Calculate the z-score for a company with a market capitalization of $250 billion. Company Market Cap ($ billions) Z-score = (Round to two decimal places as needed.) Wells Fargo 274.4 Nestle 229.5 c. Test to determine if the empirical rule holds true by determining the percentage of observations that fall within tone standard deviation from the mean. ExxonMobil 343.2 What is the percentage of observations that fall within tone standard deviation from the mean? ATandT 249.3 JPMorgan Chase Alphabet 306.6 % of the observations fall within t one standard deviation from the mean. 579.5 (Round to the…
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A. Determine the coefficient of determination, r2, and interpret its meaning. (Fill in the Blank) r2 = ___? (Round to four decimal places as needed.) B. What is the meaning of the coefficient ofdetermination? (Choose Below) A. It measures the variability in the actual plate gap from the predicted plate gap. B. It measures the variability in the actual tear rating from the predicted tear rating. C. It is the proportion of the variation in the plate gap that is explained by the variability in the tear rating. D. It is the proportion of the variation in the tear rating that is explained by the variability in the plate gap. C. Determine the standard error of the estimate. SYX = ___? (Round to four decimal places asneeded.)
The data set shows the GDP per people in 24 countries, along with the proportion of person that have a linkedin social media account. A. the covariance is ___ percentage dollars. be careful of the units. round to the nearest integer. B. r= ___ c. Choose the correct answer below. A. There is no clear relationship between the GDP and LinkedIn accounts. B. There is a strong positive relationship between the GDP and LinkedIn accounts. C. There is a weak positive relationship between the GDP and LinkedIn accounts. D. There is a strong negative relationship between the GDP and LinkedIn accounts. GDP (PPP) Social Media Usage (%) 6,905 89 17,863 87 5,114 86 9,989 86 6,121 83 6,593 83 13,899 81 4,013 83 16,146 75 4,696 79 16,470 76 19,857 72 18,155 71 3,501 74 19,526 75 8,007 76 4,033 73 13,651 69 16,990 68 6,642 70 6,447 70 6,434 68 13,052 64 10,874 47
13. A researcher calculates the column percent and finds the maximum difference across columns is 17.3%. This is an example of ____ relationship: a. weak b. moderate c. strong d. positive
2. V = % Bh (B = ?, V = 189, h 9)

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