t Test Test Statistic, t: -8.7201 Critical t: t1.9695 P-Value: 0.0000

Question

Technology. In Exercises 9–12, test the given claim by using the display provided from technology. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), or critical value(s), and state the final conclusion that addresses the original claim.

Old Faithful  Data Set 23 “Old Faithful” in Appendix B includes data from 250 random eruptions of the Old Faithful geyser. The National Park Service makes predictions of times to the next eruption, and the data set includes the errors (minutes) in those predictions. The accompanying Statdisk display results from using the prediction errors (minutes) to test the claim that the mean prediction error is equal to zero. Comment on the accuracy of the predictions.

For Exercise 11

 

t Test
Test Statistic, t: -8.7201
Critical t:
t1.9695
P-Value:
0.0000
Expand
Transcribed Image Text

t Test Test Statistic, t: -8.7201 Critical t: t1.9695 P-Value: 0.0000

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the resp...

A: a.The percentage of respondents said that they are willing to donate organs after death is,

Q: Wildfires. Wildfires are uncontrolled fires that usually spread quickly and are common in wilderness...

A: The Boxplot and Histogram for the given data can be obtained as follows:Step-by-step procedure to ob...

Q: In Exercises, hypothesis tests are proposed. For each hypothesis test, a.determine the null hypothes...

A: a).Let µ be the mean length of imprisonment.The null hypothesis for the test is given below:Null Hyp...

Q: See You Later Based on a Harris Interactive poll, 20% of adults believe in reincarnation. Assume tha...

A: Consider X be a random variable which follows binomial distribution indicates the number of adults b...

Q: In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indic...

A: Any binomial distirbution with value of np ≥ 5 and n(1-p) ≥ 5 can be approximated into normal distri...

Q: Suppose that a simple random sample is taken from a normal population having a standard deviation of...

A: a) From the provided information, the sample size (n) = 4The standard deviation (σ) = 10The z value ...

Q: Change for a Quarter How many different ways can you make change for a quarter? (Different arrangeme...

A: The number of coins that are less than a quarter in terms of money is three. They arePenny ($0.01)Ni...

Q: How hot does it get in Death Valley? The following data are taken from a study conducted by the Nati...

A: Mean:The formula for finding mean is shown below:

Q: Computer Variable Names A common computer programming rule is that names of variables must be betwee...

A: Here, there are 26 possibilities for the first character. The successive characters have 36 possibil...

Q: The Wind Mountain excavation site in New Mexico is an important archaeological location of the ancie...

A: a.The class width is calculated as follows:

Q: Cloudiness in Breslau. In the paper “Cloudiness: Note on a Novel Case of Frequency” (Proceedings of ...

A: a.It is given that mean degree of cloudiness is, μ = 6.83 and standard deviation σ = 4.28. The sampl...

Q: If most of the prices in a large data set are of approximately the same magnitude except for a few o...

A: Shape of the histogram:The shape of the histogram is said to be symmetric if it resembles a bell-sha...

Q: 50 psychology students took a standardized test. The scores are summarized in the GFDT below.    ...

A: The formula for the relative frequency is given below:

Q: Blood Pressure Medication. A medical researcher wants to determine factors that affect a patient’s r...

A: (a)Justification:Response variable:Response variable in a regression equation is the dependent varia...

Q: Suppose that you want to perform a hypothesis test for a population mean, µ. a. Express the null hyp...

A: Hypothesis testing:         Hypothesis testing was introduced by R.A.Fisher (Ronald Fisher).It is a ...

Q: Another type of confidence interval is called a one-sided confidence interval. A one-sided confidenc...

A: The lower bound of the confidence interval about population mean is,

Q: 120 psychology students took a standardized test. The scores are summarized in the GFDT below.   ...

A: Cumulative Frequency:

Q: Eye Contact In a study of facial behavior, people in a control group are timed for eye contact in a ...

A: The random variable x represents the eye contact time for the people.The probability of eye contact ...

Q: Radioactive Decay Radioactive atoms are unstable because they have too much energy. When they releas...

A: a.For cesium-137, it was found that 1,000,000 radioactive atoms decayed to 977,287 in 365 days. That...

Q: In each of Exercises, determine the critical value(s) for a one-mean z-test. For each exercise, draw...

A: The required critical value can be obtained using MINITAB.Step-by-step procedure to obtain normal pr...

Q: If two dices are rolled, what is the probability that the sum of the up-turned faces will equal 7?

A: In this case, the sample space when two dices are rolled is shown below:

Q: Hybrids One of Mendel’s famous experiments with peas resulted in 580 offspring, and 152 of them were...

A: a. According to given information:

Q: Suppose x1 and x2 are predictor variables for a response variable y. a. The distribution of all poss...

A: a. Yes, the distribution of the response or dependent variable is the distribution of all the possib...

Q: Answer true or false and explain your answer: If it is important not to reject a true null hypothesi...

A: Yes, it is important not to reject a true null hypothesis, the hypothesis test should be performed a...

Q: Phase I of a Clinical Trial A clinical test on humans of a new drug is normally done in three phases...

A: a. Different sequential arrangements that are possible if 14 people are selected from the 16 that ar...

Q: Define a. normally distributed variable.b. normally distributed population.c. parameters for a norma...

A: a.Normally distributed variable: If the distribution has the shape is normal curve then it is said t...

Q: Mean Absolute Deviation Is the mean absolute deviation of a sample a good statistic for estimating t...

A: If the statistic targets the corresponding population then the statistic is said to be a good for es...

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarize...

A: The data is provided for the length (in mm) of 300 fish from the North Atlantic.From the provided gr...

Q: Obtaining the P-value. Let x denote the test statistic for a hypothesis test and x0 its observed val...

A: a).From the given information,The appropriate p-value for a left-tailed testis as follows:

Q: Car Rental Cost. To rent a car, the Acme Rental Company charges $39.95 per day plus $0.20 per mile. ...

A: a.Equation of a plane with two predictors:

Q: Mobile Homes. According to the U.S. Census Bureau publication Manufactured Housing Statistics, the m...

A: a.The mean and standard deviation are,Mean:

Q: A variable of a population has a normal distribution. Suppose that you want to find a confidence int...

A: a)Following assumptions are required for the large sample confidence interval about mean to be valid...

Q: In each of Exercises, we have provided a sample mean, sample size, and population standard deviation...

A: The test hypotheses are given below:Null hypothesis:H0: µ = 22,Alternative hypothesis: Ha: µ > 22...

Q: Use the Poisson distribution to find the indicated probabilities Disease Cluster Neuroblastoma, a ra...

A: Note:Hey there! Thank you for posting the question. However, since your question has more than 3 sub...

Q: Discuss the relationship between the margin of error and the standard error of the mean.

A: Click to see the answer

Q: Here is a data set: 5740 7020 7550 6370 5850 7320 4410 6830 8180 6770 6690 8890 5290 8890 5...

A: There are total 28 sample ranges from 4410 to 8890The clad width can be calculate as

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact false. a. Is it possible to make ...

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II error:Pro...

Q: A committee of 5 is to be selected from a group of 6 men and 9 women. If the selection is made rando...

A: The total number of women is 9.The total number of men is 6.The number of people selected at random ...

Q: In each of Exercises, define the term given rejection region

A: REJECTION REGION:The rejection region is also known as the critical region.Rejection region or criti...

Q: 50 psychology students took a standardized test. The scores are summarized in the GFDT below.    ...

A: Click to see the answer

Q: Normal Distributions What is the difference between a standard normal distribution and a nonstandard...

A: The difference between a standard distribution and a nonstandard distribution is that the standard n...

Q: What key fact permits you to determine percentages for a normally distributed variable by first conv...

A: In this case, we need to identify key fact that permits determining percentages for a normally distr...

Q: In each of Exercises, determine the critical value(s) for a one-mean z-test. For each exercise, draw...

A: The required critical value can be obtained using MINITAB.Step-by-step procedure to obtain normal pr...

Q: Testing Claims about Proportions.  In Exercises, test the given claim. Identify the null hypothesis,...

A: Given Data:Smoking = 39Not Smoking = 32Therefore,n = 39+32 = 71x = 39Sample proportion =

Q: Explain the difference between a point estimate of a parameter and a confidence-interval estimate of...

A: A point estimate gives us a particular value as an estimate of the population parameter.

Q: Designing a Work Station A common design requirement is that an environment must fit the range of pe...

A: a)The random variable x represents the sitting knee heights of the males.The minimum table clearance...

Q: The boxplot below shows salaries for Construction workers and Teachers. Construction Teacher 35 Sala...

A: The box plot contains 5-number summary. That is, the minimum value, the first quartile, the second q...