The test statistic of z=2.18 is obtained when testing the claim that p +0.187.a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.b. Find the P-value.c. Using a significance level of α = 0.01, should we reject Ho or should we fail to reject Ho?Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.a. This is a two-tailed test.b. P-value = (Round to three decimal places as needed.)

Given,Test statistic, z = 2.18Claim is, Level of significance, α = 0.01

Answered: The test statistic of z = 2.18 is…

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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If you use a 0.06 level of significance in a two-tail hypothesis test, what is your decision rule for rejecting Hg: u = 15.2 if you use the Z test? Click here to view page 1 of the cumulative standardized normal distribution table. Click here to view page 2 of the cumulative standardized normal distribution table. Which of the following decision rules is correct? O A. Reject H, if – 1.88 1.88. O C. Reject H, if ZSTAT - 1.555 or ZSTAT> 1.555. O D. Reject H, if - 1.555 < ZSTAT < 1.555.
The test statistic of z = 1.89 is obtained when testing the claim that p> 0.2. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. This is a test. right-tailed left-tailed two-tailed
A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations n are equal. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts. What are the null and alternative hypotheses? OA. Ho: H₁ H₂ H₁: Hy #H₂ OC. Ho: H₁ H₂2 H₁: Hy > H₂ (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) The test statistic, t, is ← OB. Ho: H₁
You wish to test the following claim (HaHa) at a significance level of α=0.002 Ho:μ=81.6 Ha:μ>81.6You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=74n=74 with mean M=82.6M=82.6 and a standard deviation of SD=17.2SD=17.2.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is greater than 81.6. There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 81.6. The sample data support the claim that the…
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is greater than 0.5. Assume that sample data consists of 78 girls in 144 births, so the sample statistic of 1324 results in a z score that is 1 standard deviation above 0. Complete parts (a) through (h) below.Click here to view page 1 of the Normal table. LOADING... Click here to view page 2 of the Normal table. LOADING...Question content area bottomPart 1a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below.Part 7g. What are the critical value(s)?The critical value(s) is/are enter your response here. (Round to two decimal places as needed. Use a comma to separate answers as needed.)Part 8h. What is the area of the critical region?The area is enter your response here. (Round to two decimal places as needed.)
The test statistic of z= 1.61 is obtained when testing the claim that p = 0.259. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject H, or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. This is a test. b. P-value= c. Choose the correct conclusion below. (Round to three decimal places as needed.) O A. Reject Ho. There is not sufficient evidence to support the claim that p = 0.259. O B. Fail to reject Ho. There is not sufficient evidence to support the claim that p# 0.259. OC. Reject Ho. There is sufficient evidence to support the claim that p# 0.259. O D. Fail to reject Ho. There is sufficient evidence to support the claim that p# 0.259.
The test statistic of z = 1.68 is obtained when testing the claim that p 0.302. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. This is a test.
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The test statistic of z = 0.81 is obtained when testing the claim that p > 0.2. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of α = 0.10, should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. This is a test. 4 b. P-value = (Round to three decimal places as needed.) c. Choose the correct conclusion below. ⒸA. Fail to reject Ho. There is not sufficient evidence to support the claim that p > 0.2 OB. Reject Ho. There is not sufficient evidence to support the claim that p > 0.2. O C. Fail to reject Ho. There is sufficient evidence to support the claim that p > 0.2. O D. Reject Ho. There is sufficient evidence to support the claim that p > 0.2.
Do men score lower on average compared to women on their statistics finals? Final exam scores of eleven randomly selected male statistics students and ten randomly selected female statistics students are shown below. Male: 77 76 91 77 56 83 77 71 65 59 66 Female: 84 99 75 87 89 68 85 99 80 80 Assume both follow a Normal distribution. What can be concluded at the the αα = 0.10 level of significance level of significance? For this study, we should use Select an answer z-test for a population proportion z-test for the difference between two population proportions t-test for the difference between two independent population means t-test for a population mean t-test for the difference between two dependent population means The null and alternative hypotheses would be: H0:H0: Select an answer μ1 p1 Select an answer ≠ = < > Select an answer p2 μ2 (please enter a decimal) H1:H1: Select an…
A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain using the visual analog scale. Assume that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for those treated with magnets. What are the null and alternative hypotheses? OA. Ho: 002 H₁:0² = 0²/2 OC. H₂:0²=0²2 H₁:0² > 0²/2 Identify the test statistic. F = (Round to two decimal places as needed.) Use technology to identify the P-value. The P-value is (Round to three decimal places as needed.) What is the conclusion for this hypothesis test? C OB. H₁: 0 = 0² H₁:0² +03 OD. H₂:0²=0²2 H₁:0² <0²/ O A. Reject Ho. There is sufficient evidence to support the claim that those given a sham treatment have pain reductions that vary more than those treated with magnets. O B. Fail to reject…

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