Start your trial now! First week only $4.99!*arrow_forward*

Question

Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 190 with 74% successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places.

< p <

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: Claim: Fewer than 9292% of adults have a cell phone. In a reputable poll of 10151015 adults, 8282...

A: Here, n=1015, p=0.82, and .

Q: Statistics Question

A: Click to see the answer

Q: A random sample of 92 checking accounts at a bank showed an average daily balance of $311. The stand...

A: GivenSample size (number of accounts) n = 92Sample mean (average daily balance) = $311Population sta...

Q: Calculate the expected value of the given random variable X. This exercise assumes familiarity with ...

A: Where N is the population size n is the sample size k is the number of successes in the population

Q: Wrong conclusion A Statistics student properly simu-lated the length of checkout lines in a grocery ...

A: After simulating the length of checkout lines in a grocery store, the statistics student reported th...

Q: Titanic On the Titanic, the probability of survival was0.323. Among first class passengers, it was 0...

A: Click to see the answer

Q: Suppose 200200 subjects are treated with a drug that is used to treat pain and 5454 of them develope...

A: Click to see the answer

Q: Marketing companies are interested in knowing the population percent of women who make the majority ...

A: From the provided information, Sample size (n) = 200 households Out of which 120 of them, the woman ...

Q: Sketch the area under the standard normal curve over the indicated interval and find the specified a...

A: Solution: From the given information, z=0.43. Then, the area to left of z=0.43 is

Q: Mathew is interested in the relationship between a learning game Power Physics and Creativity. He ha...

A: It is given that:

Q: q25 Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range f...

A: 25.

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based...

A: It is given that:

Q: A new fertilizer was applied to the soil of 292 bean plants. 44% showed increased growth. Find the m...

A: Given information Proportion of plant showed growth = 0.44 No of bean plants (n) = 292

Q: Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval...

A: Click to see the answer

Q: In a certain school district, it was observed that 29% of the students in the element schools were c...

A: Click to see the answer

Q: Life expectancy 2010 Data for 24 Western Hemispherecountries can be used to examine the association ...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for ...

Q: According to the Oxnard College Student Success Committee report in the previous year, we believe th...

A: From the provided information, 16% of students struggle in their classes because they don't spend mo...

Q: Movie dramas Here’s a scatterplot of the productionbudgets (in millions of dollars) vs. the running ...

A: a. The fitted separated regression line with scatterplot for production budget over run times for ma...

Q: Marriage age 2010 revisited Suppose you wanted topredict the trend in marriage age for American wome...

A:

Q: In a survery of 199 households, a Food Marketing Institute found that 65 households spend more than ...

A: Click to see the answer

Q: Assume that X has a normal distribution. The mean is μ=15.2 and the standard deviation is σ=0.9. ...

A: Given Information: Assume that X has normal distribution.

Q: The length of time for students to complete a 1-hour timed standardized mathematics test has a proba...

A: From the provided information, the probability density function is as follow: f(t) = 1.5t2 + t, 0≤t≤...

Q: Kindergarten Companies that design furniture forelementary school classrooms produce a variety of si...

A: Click to see the answer

Q: Boys and girls In 2002 the journal Science reported thata study of women in Finland indicated that h...

A: a. A researcher collected data about the mother’s lives in Finland from church records during the pe...

Q: Carnival A carnival game offers a $100 cash prize foranyone who can break a balloon by throwing a da...

A: Click to see the answer

Q: Rainmakers again The table lists the amount of rainfall(in acre-feet) from the 26 clouds seeded with...

A: a. The data represents the amount of rainfall in acre feet for a random sample of 26 clouds that are...

Q: A smart phone manufacturer is interested in constructing a 99% confidence interval for the proportio...

A: Click to see the answer

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars ...

A: Click to see the answer

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you bel...

A: Sample Size: The formula for the sample size is as follows: Here, zα/2 is the critical value at 90%...

Q: The mean and standard deviation of a normal variable X are given. Find the indicated probability. (R...

A: From the given information, the random variable X has mean µ=0 and σ=4.

Q: West High wants to estimate the number of students who drive to school. Answer the following. ...

A: a). Since, a sample is a part of the population and that represents the population. Therefore, the n...

Q: The rest statistic of z=-1.26 is obtained when testing the claim that p=1/6 a. Using a significance ...

A: a) Here, α=0.05. The null hypothesis is H0: p=1/6. The alternative hypothesis is H1: p ≠ 1/6. That i...

Q: Ho: p= 20 H1: H #20 X=21.5 s=5 n=25 and a=.01 The value of the Z or t-table is: 2.797 2.787 2.576 2....

A: State the hypotheses. That is, the population mean equals 20. That is, the population mean do not ...

Q: Which of the following most accurately describes a correlation coefficient of 0.83 between height (i...

A: Here, variables are height (inch X), weight (lbs Y), and correlation coefficient of (r) is 0.83.

Q: List and briefly explain the four basic sources of variation, and explain why it is important forman...

A: Solution: Variations occur in all business processes. These variations could be due to certain rando...

Q: Electronics Suppose that 46% of families living in a cer-tain county own a computer and 18% own an H...

A: There are 46% of the families living in a certain country own a computer and 18% of the own an HDTV....

Q: A researcher analyzing somedata created a linear modelwith R2 = 94, and having the residuals plot se...

A: Given: The residual plot is: Coefficient of determination (R2) = 94% = 0.94.

Q: Skinned knees There is a strong correlation betweenthe temperature and the number of skinned knees o...

A: There is a strong correlation between temperature and the number of skinned knees on playground. Cor...

Q: Given that X̄=20, σ=9 and n=81, construct the following confidence intervals: the 95% confidence int...

A: Introduction: The 100 (1 – α) % confidence interval for the population mean, μ, when the population ...

Q: Seasons Average daily temperatures in January and July for60 large U.S. cities are graphed in the fo...

A: a. Two histograms represent the temperature in January and July for a number of cities of Country U....

Q: The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mea...

A: Click to see the answer

Q: Three different methods for assembling a product were proposed by an industrial engineer. To investi...

A: Click to see the answer

Q: Answer the following questions 1)The test statistic of z=-1.55 is obtained when testing the claim th...

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will an...

Q: Treatments A B C 1 10 9. 8 2 12 6. Blocks 3 18 16 14 4 20 18 18 5 8 7 8 Use a = 0.05 to test for any...

A: Click to see the answer

Q: In a random sample of 23 people, the mean commute time to work was 32.1 minutes and the standard dev...

A: Click to see the answer

Q: Eligibility A university requires its biology majors totake a course called BioResearch. The prerequ...

A: a. A university requires its biology majors to take a course called Bioresearch. There is about 52% ...

Q: Parent opinion, part 1 In a large city school system with20 elementary schools, the school board is ...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: The average score for games played in the NFL is 22.5 and the standard deviation is 9.2 points. 50 g...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: Prenatal care Results of a 1996 American MedicalAssociation report about the infant mortality rate f...

A: Click to see the answer

Q: -According to a recent report, 65%of Internet searches in a particular month used the Google search ...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...