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. 

Airport Data Speeds Data Set 32 “Airport Data Speeds” in Appendix B includes Sprint data speeds (mbps). The accompanying TI-83/84 Plus display results from using those data to test the claim that they are from a population having a mean less than 4.00 Mbps. Conduct the hypothesis test using these results.

For Exercise 9

NORHAL FLOAT AUTO REAL RADIAN HP
T-Test
UC4
t=-.3662917532
p=. 3578621222
X=3.71
Sx=5.598296024
n=50
Expand
Transcribed Image Text

NORHAL FLOAT AUTO REAL RADIAN HP T-Test UC4 t=-.3662917532 p=. 3578621222 X=3.71 Sx=5.598296024 n=50

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

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Ethanol Railroad Tariffs. An ethanol railroad tariff is a fee charged for shipments of ethanol on pu...

A: Sampling distribution of a sample mean:

Q: The following table shows the results of a one-way analysis of variance comparing three treatment co...

A: Given that, there are three treatments and a sample of 11participants in each treatment.The complete...

Q: Life Insurance in Force. The American Council of Life Insurers provides information about life insur...

A: a)

Q: Must the variable under consideration be normally distributed for you to use the z-interval procedur...

A:  A random variable can be categorized as qualitative or quantitative variable.For finding confidence...

Q: Income Tax and the IRS. In 2010, the Internal Revenue Service (IRS) sampled 308,946 tax returns to o...

A: a)Sampling error:When a sample is used to estimate a population characteristic the error resulting i...

Q: In each of Exercises, we provide a sample mean, sample size, sample standard deviation, and confiden...

A: a) Givensample mean = xbar =20sample size = n =36sample standard deviation = s = 3confidence interva...

Q: What is the P-value of a hypothesis test? When does it provide evidence against the null hypothesis?

A: p-value:The probability value associated with a statistical test is defined as the p-value. In other...

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: Determine and sketch the area under the standard normal curve that lies a. to the left of -3.02.b. t...

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

Q: Here is a data set summarized as a stem-and-leaf plot: 6# | 22455599 7# | 0001111133455688 8# | 0335...

A: The number of data values are in this data set is obtained below:From the given stem and leaf plot, ...

Q: A simple random sample is taken from a population and yields the following data for a variable of th...

A: Point estimate:Point estimate is the single value obtained from point estimation on a set of sample ...

Q: In each of Problems, we have provided a scenario for a confidence interval. Decide, in each case, wh...

A: It is given that the boxplots of the reveals three outliers and they are questionable to remove.

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: In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We h...

A: a).The p-value can be obtained by entering the formula “=2*NORM.S.DIST(-3.08,TRUE)” in Excel:

Q: Car Fatalities The recent rate of car fatalities was 33,561 fatalities for 2969 billion miles travel...

A: a)Mean of Poisson distribution:The formula is given by,

Q: In how many different ways can a true-false test consisting of 5 questions be answered? Its not 10? ...

A: According to the provided data, there a total of 5 questions that can be answered in 2 ways, that is...

Q: Grade Prediction. The Statistics Department at a large university would like to predict the final gr...

A: Predictor variable :- It is the independent variable in the regression equation, which explains the ...

Q: ATM You want to obtain cash by using an ATM machine, but it’s dark and you can’t see your card when ...

A: a. Probability of selecting a random position and inserting the card with the result that the card i...

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

A: Frequency:The frequency of a particular data value is the number of times the data value occurs.Cumu...

Q: College Presidents There are about 4200 college presidents in the United States, and they have annua...

A: a)The distribution of the sample mean is approximately normal because the samples are of the same si...

Q: The P-value for a hypothesis test is 0.06. For each of the following significance levels, decide whe...

A: Decision criterion:If the p-value of the test is less than or equal to the level of significance, re...

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. CPA Actuary 25 30 35 40 45 50 55 ...

A: From the boxplot of CPA, the value of median salary for CPA is = 45From the boxplot of Actuary, the ...

Q: What a Word! One of the longest words in standard statistics terminology is “homosce-dasticity.” How...

A: Solution: We are given  the longest words in standard statistics terminology is “homosce-dasticity.W...

Q: On a recent biology quiz, the class mean was 18 with a standard deviation of 2.6. Calculate the z-sc...

A: Standard normal distribution:The standard normal distribution is a special case of normal distributi...

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

A: The null and alternative hypotheses are stated below:

Q: Electricity Costs. The monthly service charge for electricity for a residential customer who is usin...

A: a.For the customer, the fixed cost that has to be paid for using the Two Period Plan is $4.10.In add...

Q: Regarding a scatterplot matrix:  a. Identify two of its uses. b. What property should the scatterplo...

A: a)Scatterplot matrix:A scatterplot matrix is defined as an array of scatterplots of the response var...

Q: Finding P-values.  In Exercises 5–8, either use technology to find the P-value or use Table A-3 to f...

A: The P-value is calculated by using Excel:The degrees of freedom is n-1 which is equal to 20.

Q: what does ss tell us about a set of data? under what circumstances will the value equal 0? Can SS ev...

A: Click to see the answer

Q: In each of Exercises, answer true or false to each statement concerning a confidence interval for a ...

A: Confidence Interval:Confidence interval is the interval estimate of the population parameter. It is ...

Q: Preliminary data analyses indicate that you can reasonably use a t-test to conduct each of the hypot...

A: The null and alternative hypotheses are stated below:

Q: Flashlight Battery Lifetimes. A brand of ashlight battery has normally distributed lifetimes with a ...

A: The probability of a random battery lasting longer than 25 hours:

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

A: Continuity correction:The binomial probability is converted to a normal distribution probability by ...

Q: Vision Correction A survey sponsored by the Vision Council showed that 79% of adults need correction...

A: Define the random variable x as the number of adults who need eyesight correction. Here, the total n...

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: Wedding Costs. According to Bride’s Magazine, getting married these days can be expensive when the c...

A: a. The point estimate for the population mean wedding cost, µ is 26,326.9 and it is obtained below: ...

Q: Preliminary data analyses indicate that you can reasonably use a t-test to conduct each of the hypot...

A:  From the given information,Sample size (n) =6,Sample mean = 182.7Sample standard deviation (s) =2.7...

Q: Which interval is wider: (a) the 95% confidence interval for the conditional mean of the response va...

A: Justification:Confidence interval:

Q: In each of Problems, assume that the variable under consideration has a density curve. Note that the...

A: Given Dataarea under a density curve that lies to the left of 60 is 0.364Percentage of area less tha...