A sample of 16 items provides a sample standard deviation of 9.5. Test the following hypotheses using a = 0.05. What is your conclusion? Use both the p-value approach and the critical value approach.Ho: ²50H₂ : ² > 50Test statistic =p-value low from table=p-value high from table=X0.05 =Reject Ho if x² >- Select your answer -Hide FeedbackIncorrect(to 2 decimals)(to 3 decimals)(to 3 decimals). Use Table 11.1.(to 3 decimals). Use Table 11.1.(to 3 decimals)Hint(Hint( TABLE 11.1 Selected Values from the Chi-Square Distribution Table*Degreesof FreedomLEAST ONE THAT * *** 98882345891011121314151617181920212223242526272829304080.99 .975.000.001.020.051.115216.297484.554.8721.2391.647 2.1802.088 2.7002.558 3.2473.053 3.8163.5714.1074.6606.4087.0157.6335.229 6.2625.812 6.9087.56411.52412.198.95.8311.1451.2371.6351.690 2.16712.87813.56514.256.004.103.352.7113.9404.5754.404 5.2265.0095.8925.6296.5717.2617.9628.6728.2319.3908.907 10.1178.2609.59110.8518.897 10.283 11.5919.542 10.98212.33810.19611.689 13.09110.85612.4012.7333.325 4.168.016.211.5841.064Area in Upper Tail.90.102.7064.605 5.9916.2517.7794.8655.5786.3047.0417.7901.6102.2042.83312.017 14.06716.0133.490 13.362 15.507 17.53514.684 16.919 19.0238.5479.312Xa10.08510.86511.651Area orprobability14.84813.848 15.659.05 .0253.841 5.0247.3787.815 9.3489.488 11.1439.236 11.070 12.83215.08610.645 12.592 14.449 16.81218.47515.98718.307 20.48317.27519.675 21.92018.549 21.026 23.33719.812 22.362 24.73621.064 23.685 26.11912.44313.24014.041 30.81324.99627.48826.296 28.84527.587 30.191.016.6359.21011.34513.27722.30723.54224.76925.989 28.86931.526 34.80527.204 30.144 32.852 36.19113.120 14.611 16.47334.38213.84415.37917.29235.56314.57316.15118.114 36.741 40.11315.30816.92818.939 37.91616.04717.708 19.76820.09021.666100*Note: A more extensive table is provided as Table 3 of Appendix B (available online).23.20924.72526.21727.68829.14128.412 31.410 34.170 37.56629.615 32.671 35.479 38.93233.924 36.78140.28932.007 35.172 38.07641.63833.19636.415 39.36442.98030.57832.00033.40937.65240.64644.31438.885 41.923 45.64243.19546.96344.46148.27841.33739.087 42.557 45.72249.58814.95316.79118.493 20.59940.256 43.773 46.979 50.89251.805 55.758 59.342 63.69122.16424.43326.509 29.05137.485 40.482 43.188 46.459 74.397 79.082 83.298 88.37953.540 57.153 60.391 64.278 96.578 101.879 106.629 112.32970.065 74.222 77.929 82.358 118.498 124.342 129.561 135.807

Given n=16, s=9.5, standard deviations σ2=50

Answered: A sample of 16 items provides a sample…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

I need this ASAP, please.
26.Do men take more time than women to get out of bed in the morning? The 48 men observed averaged 7.2 minutes to get out of bed after the alarm rang. Their standard deviation was 1.1. The 45 women observed averaged 6 minutes and their standard deviation was 2.5 minutes. What can be concluded at the αα = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean t-test for the difference between two dependent population means t-test for the difference between two independent population means z-test for the difference between two population proportions z-test for a population proportion The null and alternative hypotheses would be: H0:H0: Select an answer p1 μ1 Select an answer = < ≠ > Select an answer p2 μ2 (please enter a decimal) H1:H1: Select an answer μ1 p1 Select an answer = > < ≠ Select an answer p2 μ2 (Please enter a decimal) The test statistic ? z t = (please show your answer to 3 decimal places.) The…
Many people believe that the average number of Facebook friends is 125. The population standard deviation is 36.8. A random sample of 49 high school students in a particular county revealed that the average number of Facebook friends was 146. At =α0.05, is there sufficient evidence to conclude that the mean number of friends is greater than 125? State the hypotheses and identify the claim with the correct hypothesis. :H0 ▼= :H1 ▼= This hypotheses test is a one tailed or two tailed test z score critical value(s) reject or accept this hypothesis is there enough evidence to support the claim
A random sample of 137 observations produced a sample mean of 31. Find the critical and observed values 0.025. The population standard deviation is known to be = of z for the following test of hypothesis using a 9 and the population distribution is normal. Ho: μ = 28 versus H₁: μ> 28. Round your answers to two decimal places. Zcritical Zobserved
While you have performed one measurement by two methods and data are presented as average and standard deviation. Method 1 is reported as 4.01±0.02, while method 2 is presented as 5.009±0.002. Identify which method is more reproducible.
Currently patrons at the library speak at an average of 66 decibels. Will this average decline after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 66 people speaking at the library. Their average decibel level was 63.2 and their standard deviation was 18. What can be concluded at the the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer v Hị: Select an answer c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer g. Thus, the final conclusion is that ... | the null hypothesis. OThe data suggest that the population mean decibal level has not significantly decreased from 66 at a = 0.10, so there is statistically insignificant evidence to conclude that the…
The average American consumes 86 liters of alcohol per year. Does the average college student consume more alcohol per year? A researcher surveyed 10 randomly selected college students and found that they averaged 92 liters of alcohol consumed per year with a standard deviation of 16 liters. What can be concluded at the the αα = 0.05 level of significance? The null and alternative hypotheses would be: Ho=?H1=? The test statistic t=? (please show your answer to 4 decimal places.)
O decreased by 3 times O increased by 2 times QUESTION 21 A bottling company produces bottles that hold 10 ounces of liquid. Periodically, the company gets complaints that their bottles are not holding enough liquid. To test Ho:H= 10 against H :µ<10- the company randomly sampled 36 bottles and found that the average amount of liquid held by the bottles was 9.6 ounces with a standard deviation of 0.7 ounce. What conclusion would you make at 0.01 level of significance? O Reject Ho because -3.43 < -2.326 O Do not reject Ho because -3.43 <-2.326 O Reject Ho because -3.43 <-2.576 O Do not reject Ho because -3.43 < -2.576 QUESTION 22 The following information represents the humidity level (x) and the moisture content (y) for 12 days: Σy 144 Iy² = 1802 Σx 507 Ex² = 22265 Exy = 6314 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers TOSHIBA HUMAX తెలంగాటనకు
Suppose the mean IQ score of people in a certain country is 100. Suppose the director of a college obtains a simple random sample of 39 students from that country and finds the mean IQ is 104.5 with a standard deviation of 13.6. Complete parts (a) through (d) below. (a) Consider the hypotheses Ho: µ= 100 versus H,: µ> 100. Explain what the director is testing. Perform the test at the a = 0.10 level of significance. Write a conclusion for the test. Explain what the director is testing. Choose the correct answer below. O A. The director is testing if the sample provided sufficient evidence that the population mean IQ score is actually not equal to 100. OB. The director is testing if the sample provided sufficient evidence that the population mean IQ score is actually greater than 100. O C. The director is testing if the sample provided sufficient evidence that the population mean IQ score is actually not greater than 100. O D. The director is testing if the sample provided sufficient…
A population has parameters μ = n = 191. 49.2 and o= = 55.3. You intend to draw a random sample of size What is the mean of the distribution of sample means? fx = What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) Ox =
A researcher is to perform a hypothesis test for a single populaiton mean with null and alternative hypotheses given below. HoiH=100 Hail#100 The researcher collects a sample of size n= 157 with sample mean y= 1072 and sample standard deviation Calculate the p-value. s= 34.8. Answer as a decimal and not a percentage with accuracy to at least 4 decimal places.
(c): Your answer is wrong. A consumer advocacy group conducts a large study on car rental practices. Among other things, the group would like to do a statistical test on the mean monthly mileage,μ, of cars rented in the US this year. The consumer advocacy group has good reason to believe that the average monthly mileage for rental cars in the US this year is higher than last year's average, which was2700miles. The group plans to perform a statistical test on the value ofμ. To do this, choose a random sample of miles driven per month and calculate that the sample mean is2835miles and the standard deviation is 750miles. Use this information to complete the parts below. (to) What are the null hypothesesh and the alternative hypothesish What should be used to perform the test? ho : μ = 2700 0 (b) (c) h : μ> 2700 1 Assume that the group decides not to reject the null hypothesis. What kind of mistake could you be making? type II Suppose the true average monthly mileage for rental cars in the…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS