Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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noise annoys self as a reasonable patient as i can be. but at\ttience w…
He's probably been up since 5:15, deciding which kinds of noise to inflict on me all day!
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here is a data set summarized as a stem-and-leaf plot: 5 | 0011233379 6…
15
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question 6 of 10 choosing a car that costs ______ instead of a car that…
D. $8000; $7000
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the following scores represent students test grades in mr. preissers sc…
# Explanation: ## Step1: List all scores First, we list out all the test scores from the table. Let's count them: 78, 84, 78, 84, 78, 84, 78, 87, 90, 87, 90, 87. Wait, actually, l…
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in a lottery game, a single ball is drawn at random from a container th…
0.48
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a single card is drawn from a standard 52-card deck. let d be the event…
$\frac{25}{26}$
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the following scores represent students test grades in ms. orrs science…
84
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an experiment consists of rolling two fair dice and adding the dots on …
$\frac{13}{18}$
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a cooler at a picnic contains 100 cans of soda covered by ice. there ar…
$\frac{37}{50}$
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the following scores represent students test grades in ms. mihals fashi…
85.5
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you can calculate the p - value for a chi - square test using technolog…
A. Reject \( H_0 \). There is enough evidence at the 5% level of significance to reject the spokesperson’s claim.
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11. what does the following statement mean? the right of citizens of th…
The statement means that neither the U.S. government nor any state government can refuse or restrict the voting rights of U.S. citizens because of their race, color, or previous s…
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you can calculate the p-value for a chi-square test using technology. a…
0.0052
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enrichment: fossil fuels the table below shows the amount of fossil fue…
1957: 38.9 1967: 50.4 1977: 52.9 1987: 54.9 1997: 56.3 2007: 54.1 2017: 61
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what is 55% of 600?
330
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you can calculate the p-value for a chi-square test using technology. a…
B. \( H_0: \sigma \leq 0.5 \) \( H_a: \sigma > 0.5 \)
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you can calculate the p-value for a chi-square test using technology. a…
B. Fail to reject \( H_0 \). There is not enough evidence at the 1% level of significance to support the administrator’s claim.
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an electronics store receives a shipment of 20 graphing calculators, 5 …
(A) 4845 (B) 1365
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from a standard 52-card deck, how many 9-card hands consist of 5 spades…
920205
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you can calculate the p-value for a chi-square test using technology. a…
0.3675
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you can calculate the p-value for a chi-square test using technology. a…
28.223
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how to tell a joke teen channel: community what did the painting say to…
A. different styles of joke delivery
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you can calculate the p-value for a chi-square test using technology. a…
B. \( H_0: \sigma \leq 35 \), \( H_a: \sigma > 35 \)
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(a) how many ways can a 2-person subcommittee be selected from a commit…
(A) 36 (B) 72
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choose the correct answer. which of the following means \many centuries…
Hace muchos siglos
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choose the correct answer which of the following means hace muchos sigl…
Many centuries ago
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an insurance agent says the standard deviation of the total hospital ch…
B. Fail to reject \( H_0 \). There is not enough evidence at the 5% level of significance to support the insurance agent's claim.
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a survey of 1200 people in a certain city indicates that 860 own microw…
(A) 1020 (B) 180 (C) 290
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choose the correct answer which of the following means \había una vez\?…
"Once upon a time"
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a class of 30 music students includes 13 who play the piano, 15 who pla…
7
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an insurance agent says the standard deviation of the total hospital ch…
0.961
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2) choose the best answer. ideally, when searching for a vendor, custom…
D. several options
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a college offers 2 introductory courses in history, 2 in science, 2 in …
a. 32 b. 11
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the record low temperature for buffalo, new york is $-20^{circ}$f. the …
Inequality: $-20^\circ\text{F} > -27^\circ\text{F}$ Meaning: Buffalo's record low temperature is warmer than Chicago's record low temperature.
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the movement of the progress bar may be uneven because questions can be…
D. to reverse the usual order
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an insurance agent says the standard deviation of the total hospital ch…
0.966
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an insurance agent says the standard deviation of the total hospital ch…
22.95
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a survey of 117 business students at a large university produced the fo…
a) 26 b) 3 c) 36
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an insurance agent says the standard deviation of the total hospital ch…
D. \( H_0: \sigma \geq \$3800 \) \( H_a: \sigma < \$3800 \)
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use an appropriate permutations formula to solve. how many arrangements…
60
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
C. Reject \( H_0 \). The standardized test statistic is in the rejection region.
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
C. Reject \( H_0 \). The standardized test statistic is in the rejection region.
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practice comparing data sets. enter values for x and y in the table to …
The trend line shows a positive correlation. The equation of the trend line is \(y = 18.8x-763\).
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
To solve for the standardized test statistic \(\chi^2\) for the chi - square test, we follow these steps: ## Step 1: Recall the formula for the chi - square test statistic for sta…
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in how many different ways can a police department arrange five suspect…
120
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
To solve for the chi - square test statistic \(\chi^{2}\), we use the formula for a hypothesis test about a population standard deviation (or variance): The formula for the chi - …
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9. the temperature of a mug of hot chocolate, t minutes after it is pre…
a. \( H(13)=77 \). Interpretation: 13 minutes after the mug of hot chocolate is prepared, its temperature is 77 degrees Fahrenheit. b. \( t = 5 \). Interpretation: 5 minutes after…
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
A
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
C. \( H_0: \sigma = 0.005 \) (Claim); \( H_a: \sigma eq 0.005 \)
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the movement of the progress bar may be uneven because questions can be…
C. shine
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a restaurant offers the following limited lunch menu. main courses turk…
120
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the measurements of the diameters (in inches) of 12 randomly chosen gol…
C. \( H_0: \sigma = 0.005 \) (Claim); \( H_a: \sigma eq 0.005 \)
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
D. Since the null hypothesis is rejected, there is enough evidence to support the claim.
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
D. Fail to reject \( H_0 \). The standardized test statistic is not in the rejection region.
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which point of view does the narrator use in the passage? \its not as c…
third person
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
To find the standardized test statistic for the \(\chi^2\)-test, we follow these steps: ## Step 1: Calculate the sample variance (\(s^2\)) First, we need to find the sample mean (…
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
To find the standardized test statistic \(\chi^{2}\) for the test of the standard deviation, we use the formula: \[ \chi^{2}=\frac{(n - 1)s^{2}}{\sigma^{2}} \] where: - \(n = 14\)…
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enter values for x and y in the table to plot points in the graph. use …
negative
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practice comparing data sets. iq\tgpa\tiq\tsat 115\t3.4\t115\t1440 84\t…
IQ
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supergym is a national chain of gyms. its employees sold 5,370 gym memb…
\(8592\)
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2. arrange the stages of product planning in chronological order using …
1. market study 2. marketing research 3. ideation and conceptualization 4. product distribution
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
(b) The critical values are $5.892, 24.736$
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the annual salaries (in dollars) of 14 randomly chosen fire fighters ar…
D. \( H_0: \sigma = 5350 \); \( H_a: \sigma eq 5350 \) (Claim)
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last year, 900 athletes finished a marathon in norwood. this year, ther…
\(24\%\)
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students build four electromagnets and test them by picking up metal ta…
16 tacks
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a. to become a famous actor. b. to withdraw formally from a union, alli…
7. a. was the rebuilding of the South after the Civil War 1864 - 1876. 8. a. take away a legal right, especially the right to vote.
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topic: reading progress question id: 162923 the movement of the progres…
B. wealth
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a hospital spokesperson claims that the standard deviation of the waiti…
A. Since the null hypothesis is not rejected, there is not enough evidence to reject the spokesperson’s claim.
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predicting forearm length complete the steps below to predict tyrell’s …
\(28\) cm
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a hospital spokesperson claims that the standard deviation of the waiti…
B. Fail to reject \( H_0 \). The standardized test statistic is not in the rejection region.
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12. choose the best answer. many modern goods, such as electronics, bec…
B. product life cycles
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fill in each blank so that the resulting statements are true. if it is …
mutually exclusive (or disjoint); $P(A) + P(B)$
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a while back, gina paid a car insurance premium of $4,680 per year. now…
\(20\)
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a hospital spokesperson claims that the standard deviation of the waiti…
36.741
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parent results not recorded. continue practising or switch user. which …
125% of 320
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a hospital spokesperson claims that the standard deviation of the waiti…
34.415
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a hospital spokesperson claims that the standard deviation of the waiti…
B
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listed below are annual data for various years. the data are the number…
C (the scatterplot labeled C)
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a hospital spokesperson claims that the standard deviation of the waiti…
A. \( H_0: \sigma \leq 0.7 \) (Claim); \( H_a: \sigma > 0.7 \)
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a hospital spokesperson claims that the standard deviation of the waiti…
A. $H_0:\sigma\leq0.7$ (Claim); $H_a:\sigma > 0.7$
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the second amendment protects \the right of the people to keep and bear…
own weapons
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use a 0.025 significance level to test the claim that peanut candies ha…
28.623
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use a 0.025 significance level to test the claim that peanut candies ha…
Fail to reject
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use a 0.025 significance level to test the claim that peanut candies ha…
30.765
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answer the following questions. 1) choose the best answer. which of the…
B. product development
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the number 99 is 44% of what number? use the variable x to represent th…
The number $59$ is $44\%$ of $\frac{1475}{11}\approx134.09$.
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predicting a math score math scores vs. science scores use the trend li…
\(83\)
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use the variable x to represent the unknown quantity. image of a propor…
The number \(99\) is \(44\%\) of \(225\).
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use a 0.025 significance level to test the claim that peanut candies ha…
30.765
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4) choose the best answer. product development begins with ____. ○ meet…
meeting the needs of consumers
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percent results not recorded. continue practicing or instead, next. whi…
125% of 24 is greater.
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consider a political discussion group consisting of 6 democrats, 4 repu…
$\frac{1}{13}$
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use a 0.025 significance level to test the claim that peanut candies ha…
## (a) A. \( H_0: \sigma \leq 0.331 \); \( H_a: \sigma > 0.331 \) (Claim) ## (b) Critical value: \( 59.342 \) Rejection region: The Middle Graph (Graph B)
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use a 0.025 significance level to test the claim that peanut candies ha…
59.342
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parent results not recorded. continue practising or switch user. a comp…
54000
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use a 0.025 significance level to test the claim that peanut candies ha…
59.342
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1. after playing 18 holes of golf, john’s score was -4 and terry’s scor…
The inequality is $-4 < -1$, meaning John’s golf score is better than Terry’s.
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use a 0.025 significance level to test the claim that peanut candies ha…
60.481
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the third amendment says that no soldier shall be \quartered in any hou…
given a place to stay
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use a 0.025 significance level to test the claim that peanut candies ha…
A. \( H_0: \sigma \leq 0.331 \); \( H_a: \sigma > 0.331 \) (Claim)