Consider the following hypothesis test.Ho: wS 12Hai p> 12A sample of 25 provided a sample mean x 14 and a sample standard deviation s-4.27.(a) Compute the value of the test statistic. (Round your answer to three decimal places.)(b) Use the t distribution table to compute a range for the p-value.p-value > 0.2000.100 < p-value < 0.2000.050 < p-value < 0.100o 0.025 < p-value < 0.0500.010 < p-value < 0.025p-value < 0.010(c) At e- 0.05, what is your conclusion?Do not reject Ho. There is sufficient evidence to conclude that > 12.Do not reject Ho. There is insufficient evidence to conclude that w> 12.Reject Ho. There is insuficient evidence to conclude that w> 12.Reject Ho. There is sufficient evidence to conclude that w > 12.(d) What is the rejection rule using the critical value? (If the test is one-tailed, enter NONE for the unused tail, Round your answer to three decimal places.)test statistic stest statistic 2What is your conclusion?Do not reject Ho. There is sufficient evidence to conclude that u> 12.Do not reject Hg. There is insufficient evidence to conclude that > 12:Reject Ho There is insufficlent evidence to condude that > 12.Reject Ho. There is sufficient evidence to conclude that > 12.

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Answered: Consider the following hypothesis test.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A century ago, the average height of adult women in the United States was 63 inches. Researchers believe that the average might be greater today. A random sample of 40 adult women was selected from the population. The sample had mean 64.2 inches and standard deviation 2.9 inches. Assuming all conditions for inference are met, the researchers will perform an appropriate hypothesis test to investigate their belief. Which of the following is the correct test statistic for the hypothesis test? A t = 63-64.2 2.9 63-64.2 2.9 t 3= 63-64.2 29 40 64.2-63 t 3= 2.9 64.2-63 t = 2.9 US 1 DELL 么 & %24 %23 || E.
st • Question 14 You wish to test the following claim (Ha) at a significance level of a = 0.002. H.:p = 51.2 H.:p > 51.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 69 58.6 62.8 sUcfocthis sampls/Repout.answeraccurato three ec
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"On the Standford-Binet test, the mean IQ is 100. A class of 13 kindergarten pupils were tested with a resulting mean of 94 and a standard deviation of 4.65. Does this group have a mean significantly different than the norm group? Use 0.01 as your level of significance. What are the given information? population mean:Blank 1 sample size:Blank 2 sample mean:Blank 3 sample standard deviation:Blank 4 level of significance:Blank 5 degrees of freedom: Blank 6 What are the critical values? Write the positive first then the negative t:Blank 7 andBlank 8 What is the value of the calculated t? Round your answer to the nearest hundredths. t:Blank 9"
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2. Average Senior High School annual cost of tuition fee for all private schools last yearwas Php43,700. A random sample of costs this year for 45 private schools indicatedthat the sample mean was Php45,800 and a sample standard deviation was Php5,600.At 0.01 level of significance, is there sufficient evidence to conclude that the costincreased?Solution:Step 1: State the hypothesis.?0: _____________________________________________________________?1: _____________________________________________________________Step 2: The level of significance and critical region.? = ________ and the ????????? = __________Step 3: Compute for the value of one sample t test. ????????? = _______Step 4: Decision Rule.___________________________________________________________________________________________________.Step 5: Conclusion:____________________________________________________________________________________________________________________________________________________________________________.3.…
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