b. Determine the critical value(s) for the hypothesis test.Round to three decimal plaçes if necessaryc. Conclude whether to reject the null hypothesis or not based on the test statistic.o Rejecto Fail to Reject A random sample of n = 18 securities in Economy A produced mean returns ofX1 = 5.5% with s = 2.3% while another random sample of n2 = 19 securities inEconomy B produced mean returns of x2 = 4.8% with s2 2.5%. At a = 0.01, canwe infer that the returns differ significantly between the two economies?%3D%3D%3DAssume that the samples are independent and randomly selected from normalpopulations with equal population variances (o1? = 02²).T-Distribution Tablea. Calculate the test statistic.t =0.000Round to three decimal places if necessary

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Answered: b. Determine the critical value(s) for…

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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In each part, we have given the significance level and the P-value for a hypothesis test. For each case determine if the null hypothesis should be rejected. Write "reject" or "do not reject" (without quotations - if you like use copy and paste to avoid typos). (a) α= 0.01, P = 0.06 answer: (b) a = 0.06, P = 0.001 answer: (c) a = 0.07, P = 0.06 answer:
Use technology to find the P-value for the hypothesis test described below. The claim is that for 12 AM body temperatures, the mean is mu greater than 98.6 degrees F. The sample size is n equals 8 and the test statistic is t equals 1.349. P-value equals (Round to three decimal places as needed.)
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: Ha: p≥ 0.3 р < 0.3 What type of test is being conducted in this problem? A. Right-tailed test B. Left-tailed test C. Two-tailed test
B. Identify the test statistic test C. Identify the P-value for this hypothesis test D. If P-value is reject H0 or fail to reject H0?
represents the summary statistics for 44 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n = 44; = 40.76 pounds; s = 5.12 pounds a) kdentify the null and alternative hypotheses? Ho: =V 40 H.:p>v40 b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? O left-tailed O right-tailed O two-tailed c) Identify the appropriate significance level. 0.05 d) Calculate your test statistic. (Round your final answer to two decimal places.) e) Calculate your p-value. (Round your final answer to four decimal places.) f) Do you reject the null hypothesis? O We reject the null hypothesis, since the p-value is less than the significance level. O We reject the null hypothesis, since the p-value is not less than the significance level. O We do not reject the null hypothesis, since the p-value is less than the significance level. O We do not reject the…
In each part, we have given the significance level and the P-value for a hypothesis test. For each case determine if the null hypothesis should be rejected. Write "reject" or "do not reject" (without quotations). Double check that you have'typed your answers correctly (no spelling errors) BEFORE you submit. In order to allow you more than one attempt at this problem, the problem will not tell you which part(s) are correct if you do not get all parts correct. (a) a = 0.01, P= 0.06 answer (b) a 0.06, P = 0.06 answer. (C) a = 0.07, P = 0.06 answer.
Which of the following is NOT one of the steps for hypothesis testing? a. Verify data conditions and calculate a test statistic. O b. Assuming the alternative hypothesis is true, find the p-value. O c. Determine the null and alternative hypotheses. O d. Assuming the null hypothesis is true, find the p-value.
A researcher believes that more than half of college students average less than 6 hours of sleep per night during the week. Suppose she collected data to test her belief and found a p-value < 0.0001. Fill in the information for her hypothesis test below. Type of test: a. Left-tail b. Right-tail c. Two-tail
Lillie conducts a hypothesis test and calculates that her sample results have a p-value of 0043, what decision can be made about the null hypothesis? O fail to reject the null O Reject the null
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A dentist wondered if his appointments were distributed evenly from Monday to Friday each week. He took a random sample of 500 appointments and recorded which day of the week they were booked for. His results are: Day Appointment Frequency Monday Search 104 Chi Square Distribution Table MA Tuesday 118 Wednesday 119 Thursday 2 The dentist would like to use these results to conduct a x² goodness-of-fit test to determine if the distribution of appointments agrees with an even distribution using a 0.5% level of significance. SUBMIT QUESTION 94 Friday SAVE PROGRESS 65 SUBMIT
Use technology to find the P-value for the hypothesis test described below. The claim is that for 12 AM body temperatures, the mean is mu greater than 98.6 degrees F. The sample size is n equals 5 and the test statistic is t equals 1.486. P-value equals (Round to three decimal places as needed.)

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b. Determine the critical value(s) for the hypothesis test. Round to three decimal plaçes if necessary c. Conclude whether to reject the null hypothesis or not based on the test statistic. O Reject o Fail to Reject