Math

StatisticsQ&A LibraryA survey of houses and traditional hogans was made in a number of different regions of the modern Navajo Indian Reservation. The following table is the result of a random sample of eight regions on the Navajo Reservation. Does this information indicate that the population mean number of inhabited houses is greater than that of hogans on the Navajo Reservation? Use a 5% level of significance. (Let d = houses − hogans.) (a) What is the level of significance? (b)What is the value of the sample test statistic? (Round your answer to three decimal places.)Start your trial now! First week only $4.99!*arrow_forward*

Question

In this problem, assume that the distribution of differences is approximately normal. *Note*: For degrees of freedom *d*.*f*. not in the Student's *t* table, use the closest *d*.*f*. that is *smaller*. In some situations, this choice of *d*.*f*. may increase the *P*-value by a small amount and therefore produce a slightly more "conservative" answer.

A survey of houses and traditional hogans was made in a number of different regions of the modern Navajo Indian Reservation. The following table is the result of a random sample of eight regions on the Navajo Reservation.

Does this information indicate that the population mean number of inhabited houses is greater than that of hogans on the Navajo Reservation? Use a 5% level of significance. (Let *d* = houses − hogans.)

(a) What is the level of significance?

(b)What is the value of the sample test statistic? (Round your answer to three decimal places.)

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: A movie based on a best-selling novel was recently released. Six hundred viewers of the movie, 235 o...

A: The hypotheses can be constructed as: H0: p1 = p2 H1: p1 > p2 The level of significance = 0.05 Gi...

Q: Last year, a person wrote 129 129 checks. Let the random variable x represent the number of checks ...

A: The number of check written by a person is 129.

Q: An experiment consists of tossing an unfair coin (43% chance of landing on heads) a specified number...

A: Click to see the answer

Q: A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in ser...

A: Click to see the answer

Q: The average time taken for your Internet service provider to remotely resolve a trouble ticket has a...

A: Click to see the answer

Q: Run a regression analysis on the following bivariate set of data with y as the response variable. ...

A: Note: Hey there! Thank you for the question. As you have posted a question with multiple sub-parts, ...

Q: Sophia has three tickets to a concert. Yolanda, Mike, Kevin, and Marissa have all stated they would ...

A: S={(Mike,Kevin),(Mike,Yolanda ),(Mike,Marissa),(Yolanda,Kevin),(Yolanda, Marissa),(Kevin,Marissa)}

Q: Workers in several industries were surveyed to determine the proportion of workers who feel their in...

A: It is given that:

Q: The typical college freshman spends an average of ?=150 minutes per day, with a standard deviation o...

A: Solution: Let X be the time on social media. From the given information, X follows normal distributi...

Q: Deborah is flying from Boston to Denver with a connection in Chicago. The Suppose you pick her up at...

A: From the given info, the probability of first flight on time and missing luggage is 1–0.8, and the p...

Q: Pete's Tavern is located near a busy intersection in the Village of Bronxville. Every week on averag...

A: Click to see the answer

Q: Use a normal approximation to find the probability of the indicated number of voters . In this case,...

A: It is given that, p = 0.22, x =42 and n =181.

Q: Define the equation for a regression line? What does each term in the line refer to?

A: The equation of the regression line is a way of finding a relationship between one continuous depend...

Q: (b) Let us say the preceding data are representative of the population crime rates in Denver neighbo...

A:

Q: is this statement true or false?

A: Determine whether the given statement is true or False. The given statement is true of false is dete...

Q: A confidence interval for a population mean has length 22. a) Determine the margin of error. b) If t...

A: Click to see the answer

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.93...

A: From the information, the amounts of nicotine in a certain brand of cigarette are normally distribut...

Q: suppose the correlation between reading achievement and math achievement in the population of fifth ...

A: Given: Sample size= n = 28 r = sample correlation coefficient. We have to find P(r > 0.65)

Q: Suppose you received a score of 95 out of 100on exam 11 . The mean was 79and the standard deviation ...

A: Click to see the answer

Q: The findings from a survey on the coffee preferences of university cafeteria customers is included ...

A: Click to see the answer

Q: The amount of coffee that people drink per day is normally distributed with a mean of 14 ounces and ...

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

Q: Help

A: Point estimate: The population parameter which is estimated by using sample statistic is termed as p...

Q: Explain Which of the following would have the largest influence? (h is the leverage, R is the studen...

A: A data point is influential if it influences any part of a regression analysis, such as the predicte...

Q: If you roll a die, you get one of the following numbers: 1, 2, 3, 4, 5, 6. Eachpossibility occurs wi...

A: Click to see the answer

Q: Compare statistical testing with legal methods used in a U.S. court setting. Then discuss the follow...

A: Click to see the answer

Q: Answer the following questions. (Write the exact answer as a decimal.) a) At a particular college, 3...

A: a) Let A be the event which represents the students play sports and B represents the students have a...

Q: A random sample is obtained from a population with a mean of μ = 45. After a treatment is administer...

A:

Q: What is the purpose of testing whether ᵝ1=0? If we reject ᵝ1=0, does it imply a good fit?

A: Click to see the answer

Q: It is easier to reject the null hypothesis if the researcher uses a smaller alpha (α) level. choose ...

A: We know that, Type I error is – In this we reject the null hypothesis which is actually true called ...

Q: How do I use technology to figure out the p-value either StatCrunch or a T-84 calculator)? Please sh...

A: Hypotheses: The aim is to check whether the sample evidence suggest that more than 2.4% of this dr...

Q: A researcher conducts an experiment comparing four treatment condition with n=12 scores in each cond...

A: Click to see the answer

Q: Suppose that a random variable ?z has a standard normal distribution. Use a standard normal table su...

A: P((−1<z<0.67)=?

Q: 40 73 152 297 320 536 574 617 650 702 781 844 860 961 Identify the 5 number summary (min, Q1, med...

A: Click to see the answer

Q: Rivers in North Carolina contain small concentrations of mercury that can accumulate in fish over th...

A: Correlation: A statistical method that is applied between the pairs of variables to check how the ...

Q: 2. A scatterplot shows a strong, positive, linear relationship between the number of rebounds a bask...

A: It is given that the scatterplot shows a strong, positive, linear relationship between the number of...

Q: Use the given data to find the 95% confidence interval estimate of the population mean μμ. Assume th...

A: Click to see the answer

Q: A population of values has a normal distribution with μ=175.9 and σ=29.7. You intend to draw a rando...

A: It is given that the mean and standard deviation are 175.9 and 29.7, respectively. The sample size (...

Q: According to the college registrar's office, 55% of students enrolled in an introductory statistics ...

A: It is given that the 55% of students enrolled in an introductory statistics class this semester are ...

Q: You are conducting a multinomial hypothesis test (αα = 0.05) for the claim that all 5 categories are...

A: Click to see the answer

Q: Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the n...

A: The regression equation can be obtained using excel. Enter the data into excel sheet. Go to Data &g...

Q: Central Eye Clinic advertises that 90% of its patients approved for LASIK surgery to correct vision ...

A: a) The digits from 0 to 8 represent “successful surgery” and the digits 9 represents “unsuccessful s...

Q: Explain the concept of standardize the predictor variable ?

A: Standardization is the process of putting different variables on the same scale. The standardization...

Q: Paleontology students went on a dig for fossils. The following data set contains the number of fossi...

A: Median: The Median represents the middle value of the given data and divides the data into two equal...

Q: When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States a...

A: Simple random sampling is a type of sampling where some units are randomly selected from a populatio...

Q: a) Write an integral expression for the moment generating function M(t). b) Evaluate the integral to...

A: a) Provide an integral expression for the moment generating function M(t). It is known that X is a c...

Q: Assume it is possible to estimate a person's score on Test B from the person's score on Test A. The ...

A: It is given that the regression equation is B = 2.3 A +9.5.