9.1 Q5 KA study was conducted to determine the proportion of people who dream in black and white instead of color. Among 321 people over the age of 55, 77 dream inblack and white, and among 311 people under the age of 25, 13 dream in black and white. Use a 0.01 significance level to test the claim that the proportion ofpeople over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below.(Round to two decimal places as needed.)Identify the P-value.P-value = 0.000(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?CEThe P-value is less than the significance level of a = 0.01, so reject the null hypothesis. There is sufficient evidence to support the claim thatthe proportion of people over 55 who dream in black and white is greater than the proportion for those under 25.b. Test the claim by constructing an appropriate confidence interval.The 98% confidence interval is 0.135 < (P₁-P₂) <0.263(Round to three decimal places as needed.)4

study was conducted to determine the proportion of people who dream in E ack and white, and among 311 people under the age of 25, 13 dream in bla eople over 55 who dream in black and white is greater than the proportion f Round to two decimal places as needed.) Identify the P-value.

study was conducted to determine the proportion of people who dream in E ack and white, and among 311 people under the age of 25, 13 dream in bla eople over 55 who dream in black and white is greater than the proportion f Round to two decimal places as needed.) Identify the P-value.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Related questions

Q: A Toronto Blue Jays baseball player is able to hit the ball for 74% of the pitches that the player…

A: It is given that 130 baseball pitches in a competition and 74% of the pitches that the player…

Q: mly selected adults showed that 62% of them would erase all of their personal information online .…

A: Given that Sample size n =595 Sample proportion p^=62%=0.62

Q: Human beta-endorphin (HBE) is a hormone secreted by the pituitary gland under conditions of st…

A: Let us denote the groups Fitness as H, Joggers as J and Sedentary as S.

Q: How much money do winners go home with from the television quiz show Jeopardy? To determine an…

A: Given data is 28481, 20210, 33331, 34022, 25251, 25788, 28471, 17548, 28832, 30100, 24696, 35597,…

Q: d. Develop the estimated regression equation by computing the values of bo and b₁ using equations:…

Q: Assuming the population has an approximate normal distribution, if a sample size n = 19 has a sample…

Q: need help with this question.

A: red : 1 to 8 blue : 1 to 10 total 18 marbles draw a marble at random.

Q: Here is a data set: 63 50 51 49 59 50 65 50 68 51 57 47 56 64 62 61 51 46 52 57 You are examining…

A: given data, examining the data wirh spilt dram and leaf plot:we have to answer for the stem plot for…

Q: Find the area of the normal curve given the following. a)From z= 0 to z= 1.43 b)From z=-1.23 to z =…

A: Given that Z follows standard normal distribution with mean zero and standard deviation one

Q: A television sports commentator wants to estimate the proportion of clients who follow professional…

A: Given,margin of error(E)=0.04sample proportion(p^)=0.48

Q: Q3) = 1 and x=3 has a density function given by f(x)=1/2. A continuous random variable X that can…

A: Variable is the unknown value which can be counted or measurable. A variable is said to be…

Q: A manufacturer produces a commodity where the length of the commodity has approximately normal…

A: GivenMean(μ)=5.3standard deviation(σ)=0.7sample size(n)=38

Q: Listed below are foot lengths (mm) and heights (mm) of males. Find the regression equation, letting…

A: Consider the calculations given below:

Q: Private nonprofit four-year colleges charge, on average, $26,741 per year in tuition and fees. The…

A: Followings are the Explanation of the question a) Let X be the cost for a randomly selected college…

Q: True or False: The following is an appropriate interpretation of the 95% confidence interval for :…

A: The data shows the body length and mass in bullfrogs.

Q: ou sell a 50 put for 4. Stock ends at $47. ayoff=.....

Q: The least squares line relating verbal memory (y) with right hippocampal volume (x) was found to be…

A: The regression line is given by y = 4 + 3x. Where, y = verbal memory and X = right hippocampul…

Q: *1' 3. Find the ML estimator of λ based on the samples of P{ x = x₁ ;^} = Xi -^ = e 2 X - x! 9 x =…

A: Given X~Pois(λ)

Q: The shape of the distribution of the data pictured below could best be described as Frequency 5 4 3…

A: If, for a given distribution, the tail is on the left side of the distribution, then it is called…

Q: PART (B OR #2) SUPPOSED TO BE TWO ANSWERS, MISSING C, D, AND E ANSWERS

A: Given that Mean = 67 , Standard deviation = 20 , Sample size = 8

Q: Internet Viewing A researcher wishes to estimate the average number of minutes per day a person…

A: Suppose μ is the true average number of minutes per day a person spends on internet.

Q: Sally takes the same bus to work every morning. Let X = the amount of time (in minutes) that she has…

Q: A spinner contains the values 0 up to, but not including, 1. The outcomes of the spinner are equally…

A: given data uniform distribution between 0 and 1 X~U(0,1) we have to find mean and median of data.

Q: What is the null hypothysis and alternative hypothysis from the following? All of the frequency…

A: The given data shows the frequencies and expected proportion.

Q: Suppose μ₁ and μ₂are true mean stopping distances at 50 mph for cars of a certain type equipped with…

A: From the provided information, m=8x=113.2s1=5.05n=8y=129.1s2=5.35 Level of significance (α) = 0.01

Q: Use the value of the correlation coefficient r to calculate the coefficient of determination r².…

Q: ) In a survey of 1223 U.S. adults, 474 said that they were very confident in the nutritional…

A: As per bartleby guidelines we can solve only first question and 3 subparts if any Nd rest can be…

Q: 14. A pharmaceutical company is testing a new drug that is supposed to lower cholesterol levels. Ten…

A: (a) The objective is to construct a 95% confidence interval for the true mean decrease in…

Q: I need part 2 of this question

A: Given, X1, X2, . . .Xn~iidBerθ where θ is unknown θ^=x¯=0.3 and n=49

Q: a claim is made that the height of a police officer is 5 feet 11 inches. to test whether this claim…

A: Let us take the null hypothesis that the height of a police officer is 5 feet 11 inches H0:μ = 5'11…

Q: A student was asked to find a 98% confidence interval for widget width using data from a random…

A: Given confidence interval is 14<μ<25.1sample size(n)=18

Q: Here are two sequences of five rolls with fair dice: X: 3-4-1-6-4 Y: 6-6-6-6-6 Which one of these…

A: When a die is rolled or two dice are rolled, it is a random experiment. This is because, although we…

Q: Some researchers have conjectured that stem-pitting disease in peach-tree seedlings might be…

A: Given sample size for herbicide A is 10, sample mean is 94.5, sample standard deviation is 10, and…

Q: d. Find the conditional proportions that treat opinion about hell as the response variable and…

A: Solution: From the given information,

Q: In an election, suppose that 35% of voters support creating a new fire district. If we poll 169 of…

A: given data n = 169 p = 0.35 fill blanks in distribution given

Q: 1.) Find the area of the normal curve given the following. a.) From z=-1.42 to z = 2.37 b.) From…

A: Answer: - Given a standard normal distribution Z ~ N( μ , σ ) Where mean μ = 0…

Q: If x(t) is a stationary random process with a mean of and a power spectrum density (PSD) of S, (f).…

Q: A simple random sample of 20 pages from a dictionary is obtained. The numbers of words defined on…

A: given data, n=20x¯=60.5s=16.7claim:μ>49.2α=0.10

Q: A student was asked to find a 98% confidence interval for widget width using data from a random…

A: Given,Confidence interval=(12.7 , 34.2)

Q: A poll was conducted to investigate opinions about global warming. The respondents who answered yes…

A: The null and alternative hypotheses are: H0: The sex of the respondent and the choice for the cause…

Q: Question 3: No-fines concrete, made from a uniformly graded coarse aggregate and a cement-water…

Q: Given are five observations for two variables, and y. The estimated regression equation for these…

A: The estimated regression equation for given data is , y^ = 0.6+2.8x

Q: Subjects with preexisting cardiovascular symptoms who were receiving subutramine, an appetite…

A: Introduction Let sample 1 be of subutramine and let sample 2 of placebo. Sample size, n1=5083 Sample…

Q: A researcher is trying to determine if there is a significant relationship between number of hours…

A: Solution-: A researcher is trying to determine if there is a significant relationship between number…

Q: b. Develop an estimated regression equation that can be used to predict annual sales given the years…

A: From the given information we find the regression equation and predict the value for salesperson 9.

Q: A population of values has a normal distribution with μ = 127.6 and o= 91.3. If a random sample of…

A: The mean is 127.6 and the standard deviation is 91.3.

Q: The price per share of stock for a sample of 25 companies was recorded at the beginning of the first…

A: Given data: Beginning End 53.82 54.19 77.02 55.7 109 102.57 83.58 79.95 139.23 126.01…

Q: In an election, suppose that 60% of voters support a school levy increase. If we poll 98 of these…

A: The sampling distribution of the sample proportion (p) for a large sample (n) is normally…

Q: The circumference of a particular species of tree was thought to be different depending on certain…

A: Suppose μ1, μ2 are the true mean circumferences of trees in National Forest S and Y, respectively.

Q: find it helpful to draw a pic (a) P(Z <z) = 0.30 (b) P(Z ≤z)=0.50 (c) P(-z≤Z≤z) = 0.50

A: To find value of z 1):P(Z<z)= 0.30 2): P(Z<=z)=0.50 3): P(-z<Z<z)=0.50

Question

9.1 Q5

K
A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 321 people over the age of 55, 77 dream in
black and white, and among 311 people under the age of 25, 13 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of
people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below.
(Round to two decimal places as needed.)
Identify the P-value.
P-value = 0.000
(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
CE
The P-value is less than the significance level of a = 0.01, so reject the null hypothesis. There is sufficient evidence to support the claim that
the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25.
b. Test the claim by constructing an appropriate confidence interval.
The 98% confidence interval is 0.135 < (P₁-P₂) <0.263
(Round to three decimal places as needed.)
4

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here