Do students perform better when they take an exam alone than when they take anexam in a classroom setting? Eight students were given two tests of equal difficulty.They took one test in a solitary room and they took the other in a room filled withother students. The results are shown below.Exam Scores92 88 79 70 86 74 78 74Classroom 89 82 76 60 86 67 75 75AloneCopy to ClipboardAssume a Normal distribution. What can be concluded at the a = 0.05 level ofsignificance?For this study, we should useSelect an answera. The null and alternative hypotheses would be:Ho: Select an answerSelect an answerSelect an answer v (please enter adecimal)H: Select an answerSelect an answerSelect an answer(Please enter adecimal)b. The test statistic ?|(please show your answer to 3 decimalplaces.)c. The p-value =(Please show your answer to 4 decimal places.)

a. The null and alternative hypotheses would be: p: Select an answer v Select an answer v Select an answer cimal) (please enter a Select an answer 1: Select an answer cimal) Select an answer | (Please enter a b. The test statistic ? (please show your answer to 3 decima places.) c. The p-value = (Please show your answer to 4 decimal places.)

a. The null and alternative hypotheses would be: p: Select an answer v Select an answer v Select an answer cimal) (please enter a Select an answer 1: Select an answer cimal) Select an answer | (Please enter a b. The test statistic ? (please show your answer to 3 decima places.) c. The p-value = (Please show your answer to 4 decimal places.)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.6 bpm. For a random sample of 163 adult males, the mean pulse rate is 68.1 bpm and the standard deviation is 11.3 bpm. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. V bpm (Type an integer or a decimal. Do not round.) b. Identify the null and alternative hypotheses. Họ: V bpm H1: bpm (Type integers or decimals. Do not round.)
A weatherman stated that the average temperature during July in Baguio City is less than 20 degrees Celsius. A sample of 32 Julys is taken. The correct set of hypotheses is __________.
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Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.6 bpm. For a random sample of 158 adult males, the mean pulse rate is 67.1 bpm and the standard deviation is 11.4 bpm. Complete parts (a) and (b) below. a. Express the original cialm in symbolic form. bpm (Type an integer or a decimal. Do not round.) b. Identify the null and alternative hypotheses. Ho: bpm
The agriculture extension office wants to test the claim that GMO carrots are longer than Organic carrots. What kind of hypotheisis test is this? O 1 Proportion z-test 2 Proportions z-test 1 Mean t-test 2 Means Matched Pairs t-test 2 Independent Means t-test Which hypotheses do we want to test? O Họ: H1 = H2 HẠ: H1= H2 O Họ: H1 = H2 HA: H1 = H2 O Ho: H1 = H2 HA: H1> H2 O Ho: H1 = H2 HA: H1< H2
1.Determine the test statistic. (Round to three decimal places as needed.) 2.Determine the P-value of the test statistic. (Round to four decimal places as needed.) 3. use 0.01 significance to test the claim
In a hypothesis test the p-value is calculated to be 0.56. Which of the following is the most reasonable decision? Reject the null hypothesis. Accept the null hypothesis. Reject the alternative hypothesis. Fail to reject the null hypothesis.
HYPOTHESIS TESTING 1. Formulate the null and the alternative Ho: hypotheses In symbol: Ho: μ = 50 Ha: The average weight of bag of chemical is not equal to 50 kilograms. In symbol: Ha: 2. Specify the following: A. Level of Significance A. B. Types of Hypothesis Testing [one-tailed test B. two tailed test (left-tailed or right-tailed) or a two-tailed test] 3. Specify the following: A. The test statistic to be used. (t-test: one sample mean or t-test: two sample means) A. B. Find the Degree of Freedom Formula: df = n-1 (for one-sample mean test) B. df = n -1 df = (n + n₂) - 2 (for two-sample mean test) df = 16-1 C. The critical or tabular value (t critical). (Can be found on the given table of Tabular Value of T) df = 15 C. 2.947 4. Compute for the value of the test statistic Formula: (t computed) using the data from the population (x-μ)√n t= and the sample/s. Given: хэ 48.1 μl - n-29 s-0.9 Substitute the given to the formula and solve: