stress. Among 206 vinyl gloves, 62% leaked viruses. Among 206 latex gloves, 13% leaked viruses. Using the accompanying display of the technology results, and using a 0.10 significance level, test the claim that vinyl gloves have a greater virus leak rate than latex gloves. Let vinyl gloves be population 1. Click the icon to view the technology results. What are the null and alternative hypotheses? OA. Ho: P₁ = P2 H₁: P₁ P2 OD. Ho: P₁ P2 H₁: P₁ P2 Identify the test statistic. B. Ho: P₁ P2 H₁: P₁ = P2 E. Ho: P₁ P2 H₁: P₁ = P2 (Round to two decimal places as needed.) C. Ho: P₁ = P2 H₁: P₁ P2 OF. Ho: P₁ P2 H₁: P₁ = P₂
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- In a survey, 716 out of 1132 randomly selected adults in the United States said that they use cell phones while driving. a) Use a 0.02 significance level when testing the claim that the proportion of adults who use cell phones while driving is different than 70%. b) What does the conclusion mean?A drug company is interested in investigating whether the color of their packaging has any impact on sales. To test this, they used five different colors (blue, green, orange, red, and yellow) for their packages of an over-the-counter pain reliever, instead of the traditional white package. The following table shows the number of packages of each color sold during the first month. Package color Blue Green Orange Red Yellow Number of packages sold 310 292 280 216 296 Using a 1% significance level, test the null hypothesis that the number of packages sold of each of these five colors is the same. Make sure to state the null and alternative hypotheses.A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 30% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2422 patients who were taking Tamiflu, and found that 666 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 30%. What type of test will be used in this problem? What evidence justifies the use of this test? Check all that apply The sample standard deviation is not known The sample size is larger than 30 There are two different samples being compared The population standard deviation is known np>5 and nq>5 The original population is approximately normal The population standard deviation is not known Enter the null hypothesis for this test.H0 Enter the…
- A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 25% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2492 patients who were taking Tamiflu, and found that 589 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 25%. What is the test statistic for the given statistics? What is the p-value for this test?A drug company is interested in investigating whether the color of their packaging has any impact on sales. To test this, they used five different colors (blue, green, orange, red, and yellow) for the boxes of an over-the-counter pain reliever, instead of their traditional white box. The following table shows the number of boxes of each color sold during the first month Box color Blue Green Orange Red White No. of boxes sold 310 292 280 216 296 Using the 1% significance level, test the null hypothesis that the number of boxes sold of each of these five colors is the same.A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 30% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2420 patients who were taking Tamiflu, and found that 684 experienced nausea. Use a 0.05 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 30%. Enter the null hypothesis for this test. What is the test statistic for the given statistics?
- A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 30% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2420 patients who were taking Tamiflu, and found that 684 experienced nausea. Use a 0.05 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 30%. What type of test will be used in this problem? What evidence justifies the use of this test? Check all that apply The population standard deviation is known There are two different samples being compared The population standard deviation is not known The original population is approximately normal The sample standard deviation is not known The sample size is larger than 30 np>5 and nq>5 Enter the null hypothesis for this test.H0 Enter the…A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 37% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2727 patients who were taking Tamiflu, and found that 941 experienced nausea. Use a 0.05 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 37%. What type of test will be used in this problem? What evidence justifies the use of this test? Check all that apply np>5 and nq>5 The population standard deviation is known The population standard deviation is not known The original population is approximately normal The sample size is larger than 30 There are two different samples being compared The sample standard deviation is not known Enter the null hypothesis for this test.H0 Enter the…In 2013, Steve LeCompte, a stock market trader and analyst, did a study to see which TV personalities made the best predictions for future stock values. One person he looked at was Jim Cramer who is the host of Mad Money on CNBC. The study monitored Jim Cramer's 678 of Jim Cramer's stock predictions, such as if the value of a stock would increase or decrease, and found that 320 of his predictions were correct. Use a significance level of 0.05 and the P-value approach to test the claim: Jim Cramer is correct less than half the time. d) State the decision e) State the conclusion
- A doctor is concerned that nausea may be a side effect of Tamiflu, but is not certain because nausea is common for people who have the flu. She researched some past studies, and found that about 25% of people who get the flu and do not use Tamilflu experience nausea. She then collected data on 2099 patients who were taking Tamiflu, and found that 490 experienced nausea. Use a 0.05 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is 25%. What is the test statistic for the given statistics?What is the p-value for this test?What is the decision based on the given statistics?After conducting a study to determine the gender of characters which appear most on cereal boxes, the manager of a large supermarket believes that of the 1386 character whose gender was determined, 996 (72%) were male characters and 390 (28%) were female characters. Does the survey support the manager’s belief about the frequency of male characters appear more often than female characters on cereal boxes? Use a significance level of 0.05. Restate the question as a null and alternative hypothesis. H0: H1: State the level of significance. Level of significance = Determine the degrees of freedom. Degrees of freedom = Determine the test statistic by filling in the table below: Observed freq (O) Expected freq (E) (O – E) (O – E)2 (O – E)2/E (O – E)2/E Male Female Test statistic = Determine the Critical value. State your conclusion.A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 725725 women and 745745 men were independently and randomly selected, and that 406406 women and 354354 men chose the state of the economy as their biggest concern. Can we conclude that the proportion of women ( p1p1 ), choosing the state of the economy as their biggest concern, exceeds the proportion of men ( p2p2 )? Use a significance level of α=0.05α=0.05 for the test. Step 2 of 6 : Find the values of the two sample proportions, pˆ1p^1 and pˆ2p^2. Round your answers to three decimal places.