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.
A study was done on body temperatures of men and women. 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 are equal. Complete parts (a) and (b) below. What are the null and alternative hypotheses? OA. Ho: H₁ H₂ H₁: H1 H₂ The test statistic, t, is (Round to two decimal places as needed.) The P-value is . (Round to three decimal places as needed.) State the conclusion for the test. μ n X S Men P₁ 11 97.67°F 0.94°F
A two-sided hypothesis test is being conducted for testing the mean of a normal distribution at the 90% level. The hypothesized mean value is 60 whereas the true mean is 61 with the variance being equal for both the hypothesized and real distributions at the value of 12.20. The sample size is 9. What are the values of the following in the asked order: Pr(Failing to reject the null hypothesis when it is false), Pr(Rejecting the null hypothesis when it is true), the power of the hypothesis test?
The test statistic of z = 2.55 is obtained when testing the claim that p = 0.269. 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 two-tailed test. b. P-value= (Round to three decimal places as needed.)
The mean income per person in the United States is $36,000, and the distribution of incomes follows a normal distribution. A random sample of 9 residents of Wilmington, Delaware, had a mean of $46,000 with a standard deviation of $8,400. At the 0.100 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average?a. State the null hypothesis and the alternate hypothesis. b. State the decision rule for 0.100 significance level. (Round your answer to 3 decimal places.) c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) d. Is there enough evidence to substantiate that residents of Wilmington, Delaware, have more income than the national average at the 0.100 significance level?
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.

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