Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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o masters, if i were disposed to stir your hearts and minds to mutiny a…
hear Caesar's will
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let a and b be two events with the following probabilities. the probabi…
\(0.48\)
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let a and b be two events with the following probabilities. • p(a) = 0.…
\(0.3\)
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the central angle of sector g is 54°. the central angle of sector h is …
\(0.775\) (or \(\frac{31}{40}\))
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read the excerpt from act 1, scene 2, of the tragedy of macbeth. sergea…
He has been badly injured.
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read the excerpt from act 1, scene 2, of the tragedy of macbeth. duncan…
Weren't our captains, Macbeth and Banquo, dismayed by this?
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read the excerpt from act 1, scene 2, of the tragedy of macbeth. sergea…
after "gashes" in the last line ("my gashes cry for help.")
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let a and b be two events with the following probabilities. • ( p(a)=0.…
Events \(A\) and \(B\) must **not be** independent because \(P(A\cap B) eq P(A)\times P(B)\) (specifically \(0.16 eq0.4\times0.2\)).
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in a recent court case it was found that during a period of 11 years 89…
- Hypothesis test: A. \(H_0:p = 0.797\), \(H_1:p<0.797\) - Test statistic: \(z=-27.19\) - \(P\) - value: \(0.000\) - Conclusion on null hypothesis: Reject the null hypothesis beca…
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the central angle of sector f is 171°. the central angle of sector e is…
\(0.6\) or \(\frac{3}{5}\)
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2. find the mean, variance, and standard deviation for the following da…
\(85\) (rounded to the nearest percent)
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4. galileo used the work of the muslim arab scientist al - battani to b…
Latin, unlike Arabic or the original Greek, was a language that any educated European could read during Galileo's time.
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trials in an experiment with a polygraph include 98 results that includ…
- Null hypothesis: \(H_0:p = 0.80\) - Alternative hypothesis: \(H_1:p<0.80\) - Test statistic: \(z=-0.60\) - P - value: \(0.274\) - Conclusion about the null hypothesis: Fail to r…
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trials in an experiment with a polygraph include 98 results that includ…
The P - value is $0.274$
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trials in an experiment with a polygraph include 98 results that includ…
The test statistic \(z\approx - 0.60\)
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trials in an experiment with a polygraph include 98 results that includ…
C. \(H_0:p = 0.80\), \(H_1:p < 0.80\)
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when she was 9 years of age, a girl did a science far experiment in whi…
\(0.022\)
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which function is the best fit for the data? $y=-2x + 9$ $y=-4x + 12$ $…
\(y=-2x + 9\)
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when she was 9 years of age, a girl did a science fair experiment in wh…
$z\approx - 2.29$
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let a and b be two events with the following probabilities. • p(a) = 0.…
\(0.8\)
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when she was 9 years of ago, a girl did a science fair experiment in wh…
\(H_{0}:p = 0.5\) \(H_{1}:p eq0.5\)
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a poll of 1132 teens aged 13 to 17 showed that 55% of them have made ne…
Reject the null hypothesis. There is sufficient evidence to reject the claim that half of all teens have made new friends online.
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a poll of 1132 teens aged 13 to 17 showed that 55% of them have made ne…
\(0.001\)
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a poll of 1132 teens aged 13 to 17 showed that 55% of them have made ne…
$z = 3.36$
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amanda will spin this spinner once. what is the probability that she wi…
\(\frac{2}{3}\)
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a poll of 1132 teens aged 13 to 17 showed that 55% of them have made ne…
\(H_0:p = 0.5\) \(H_1:p>0.5\)
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in a leichtman research group survey of 1000 tv households, 74.7% of th…
Fail to reject the null hypothesis. There is not sufficient evidence to reject the claim that the percentage of all homes with at least one Internet - connected TV device is equal…
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many students arrived late to carmens orchestra class yesterday. carmen…
Approximately \(62\%\) of the violinists arrived late. Approximately \(67\%\) of the cellists arrived late. So, the data does not support Ethan's claim.
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in a leichtman research group survey of 1000 tv households, 74.7% of th…
\(0.012\)
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in a leichtman research group survey of 1000 tv households, 74.7% of th…
$-2.52$
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consider a sample of 49 football games, where 27 of them were won by th…
B. Fail to reject \(H_0\). There is not sufficient evidence to support the claim that the probability of the home team winning is greater than one - half.
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consider a sample of 49 football games, where 27 of them were won by th…
The P - value for this hypothesis test is $0.239$
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consider a sample of 49 football games, where 27 of them were won by th…
The test statistic for this hypothesis test is $0.71$.
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consider a sample of 48 football games, where 27 of them were won by th…
A. \(H_0:p = 0.5\), \(H_1:p>0.5\)
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when brett kavanaugh was nominated to be a supreme court justice, a sur…
Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that a majority of Americans disapproved of Kavanaugh.
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- if someone can easily agree or disagree with a statement, then it is …
B. proof that supports the claim
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when brett kavanaugh was nominated to be a supreme court justice, a sur…
\(0.323\)
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- if someone can easily agree or disagree with a statement, then it is …
A. an arguable statement
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a drama club surveyed its 7th - and 8th - grade members to see what typ…
Of the 7th - grade members, 60% chose a musical.
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when brett kavanaugh was nominated to be a supreme court justice, a sur…
\(z = 0.46\)
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when brett kavanaugh was nominated to be a supreme court justice, a sur…
\(H_0:p = 0.5\) \(H_1:p>0.5\)
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in a program designed to help patients stop smoking, 186 patients were …
\(0.535\)
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in a program designed to help patients stop smoking, 186 patients were …
$z = 0.62$
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in a program designed to help patients stop smoking, 190 patients were …
\(H_{0}:p = 0.81\) \(H_{1}:p eq0.81\)
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in a recent court case it was found that during a period of 11 years 89…
A. \(H_{0}:p = 0.797\), \(H_{1}:p<0.797\)
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a genetic experiment involving peas yielded one sample of offspring con…
\(P - value = 0.087\)
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which of the following means \para siempre\? for now never ever after
Ever after
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which of the following means once upon a time? de repente hace muchos s…
Había una vez
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evaluate the line plot shown. what is the length of the longest crayon?…
\(7\) in
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what does it mean to \legislate from the bench\? they are telling the p…
They are "making" their own laws through their rulings.
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evaluate the line plot shown. what is the length of the longest pencil?…
6 in
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evaluate the line plot shown. what is the length of the longest pencil?…
7 in
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what is p(not b | not a)? a - likes asparagus b - likes broccoli c - li…
\(\frac{13}{18}\)
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in a study of cell phone usage and brain hemispheric dominance, an inte…
Because the P - value is less than the significance level, reject the null hypothesis. There is sufficient evidence to support the claim that the return rate is less than \(20\%\).
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what does the sentence below mean? ella bailó con el príncipe. she danc…
She danced with the prince.
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13/20 identify the shaded area... a a b b
\(B'\)
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choose the correct answer which of the following means \legend\? la nar…
Una leyenda
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the diagram shows the sports played by 80 students. if a student is pic…
\(\frac{66}{80}\)
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a - likes asparagus b - likes broccoli c - likes carrots there are 28 s…
\(\frac{13}{18}\)
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what is p(foreign language | sport)?
\(\frac{7}{12}\)
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the venn diagram shows the number of students in chorus, band, and/or o…
\(36\)
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which of the following means \chocar\? to hit / crash to kill to stop
To hit / crash
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4 multiple choice 1 point tri, a full - time college student, sold his …
has a duty of good faith which means honesty in fact.
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how many students took the survey?
53
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which of the following means however? de repente sin embargo por fin
Sin embargo
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in kalas video game, she receives a treasure box for completing a missi…
(a) Ring (b) Wand (c) Amulet
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16/20 the diagram shows the sports played by 80 students. if a student …
\(\frac{49}{80}\)
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the diagram shows the sports played by 80 students. if a student is pic…
\(\frac{27}{40}\)
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which meaning of ordain most closely matches its meaning in this excerp…
C. [verb] to establish by law
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what does the word minuet mean? a purple dye derived from beets a dance…
a dance involving short, dainty steps
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the venn diagram below shows the number of senior boys who play footbal…
\(18\)
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which of the following best explains this excerpt from the speech? it w…
B. The speaker believes that the Union was formed to give all people, including women, liberty and freedom.
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what is p(not sport)?
\(\frac{26}{50}\)
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what is p(not foreign language)?
\(\frac{21}{50}\) (but since it's not in the options, there is a mistake. If we assume a mis - labeling and the number for only Sport is \(10\) (to match the options), then \(P(\t…
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what is the probability that a randomly selected student would be in ba…
\(0.275\)
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the image represents which of the following? intersection, \or\ union, …
intersection, "and"
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complete the sentence with the word that best fits the overall meaning …
C. inconsistent
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what statement does the shaded region represent? a b a or b a and b
C. \(A\) or \(B\)
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complete the sentence with the word that best fits the overall meaning …
inconsistent
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the histogram shows a citys daily high temperatures recorded for four w…
left - skewed
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what does the shaded region of the venn diagram represent? only p or s …
Only \(P\) and \(S\)
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a school creates a histogram representing the individual travel times f…
The median time is less than 25 minutes.
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how many students took the survey?
53
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grace is looking at a report of her monthly cell - phone usage for the …
100
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what does the shaded portion of the venn diagram represent? only art ba…
Only Art
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the histogram shows the weekly rates charged by different daycares for …
nearly symmetrical
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what is p(foreign language ∩ sport)?
\(\frac{14}{50}\)
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the graph shows a distribution of data. what is the variance of the dat…
0.25
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the graph shows a distribution of data. what is the variance of the dat…
\(0.25\) (the second option)
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directions: some of our vocabulary words contain root words from variou…
- Acquiesce: ravage - Altruism: other - Bellicose: war - Capitulate: head - IncreduIous: believe - Misconstrue: wrong or badly - Negligible: to know beforehand - Prescient: to kno…
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the graph represents the distribution of the lengths of play times, in …
Most of the songs were between 3 minutes and 3.8 minutes long.
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raquel and van live in two different cities. as part of a project, they…
Raquel's data are most likely closer to $3.42 than Van's data are to $3.78.
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put the words in the correct order to form meaningful sentences 1. prep…
1. Dad is preparing lunch this afternoon. 2. The scouts are wearing their uniforms today. 3. I am flying to Bengaluru at the moment. 4. My uncle is listening to Punjabi folk songs…
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bryant collects a set of 20 values that represent the lengths of worms …
6
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match each definition of the word literal with the sentence that best i…
- The translation device gave a literal translation. → reproduced word for word - The common text LOL lacks a literal meaning. → sticking to the primary meaning of a term - The wi…
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which of the following is not true of creating a good fitness goal? be …
Keep one long - term goal.
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read the excerpt from \dorothea lange\ early on in her training, she st…
stayed away from
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question 7 explain the meaning of each statement in this situation. w(5…
The temperature after 5 minutes was warmer than the temperature after 2 minutes.
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question 6 1 pts use function notation to represent this statement. in …
C. \(P(2012)=1040\)
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your turn 1. this question has two parts. first, answer part a. then, a…
Part A: C. the act of retiring from a job Part B: D. "I am free to retreat into the solace of my thoughts" Question 2: C. Sometimes she has to reply in a general way because she d…