An Office of Admission document claims that 54.7% of UVA undergraduates are female. To test this claim, a random sample of 205 UVA undergraduates was selected. In this sample, 52.4% were female. Is there sufficient evidence to conclude that the document's claim is false? Carry out a hypothesis test at a 2% significance level. A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (-0, a) is expressed (-infty, a), an answer of the form (b, 0) is expressed (b, infty), and an answer of the form (-0, a) u

Part: 2/5 Part 3 of 5 (c) Compute the P-value. Round the answer to at least four decimal places. P-value= X Ś

A random sample of 400 residents are asked if they are in favor of the proposed 10% vanity tax that will raise badly needed revenue for infrastructure development. If 300 are in favor, test the hypothesis that more than 60% of the voters are in favor of the proposed tax. Using a 0.01 level of significance, what is the appropriate test statistic? Ot=6.12 Ot=-6.12 Oz=6.12 OZ=-6.12

A previous study claims that 40% of people own a cat. A researcher believes that proportion has decreased. The researcher takes a random sample of 140 people and finds that 49 of them own a cat. Using a significance level of 0.05, test the claim using a one-proportion hypothesis test.The null and alternative hypothesis would be:The test statisitc is: The p-value is:State the conclusion:

Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A company claims that its packages of 100 candies are distributed with the following color percentages: 15% red, 21% orange, 12% yellow, 14% brown, 24% blue, and 14% green. Use the given sample data to test the claim that the color distribution is as claimed. Use a 0.025 significance level. E Click the icon to view the color counts for the candy in the package. Click here to view the chi-square distribution table. The test statistic is (Round to two decimal places as needed.) The critical value is (Round to three decimal places as needed.) State the conclusion. Ho. There sufficient evidence to warrant rejection of the claim that the color distribution is as claimed. Candy Package Counts Candy Counts Number in Package Color Red 14 Orange 23 Yellow 10 Brown 7 Blue 27 Green 19 Enter vOur C newer in ooe

The US Department of Energy reported that 49% of homes were heated by natural gas. A random sample of 342 homes in Oregon found that 143 were heated by natural gas. Test the claim that proportion of homes in Oregon that were heated by natural gas is different than what was reported. Use a 10% significance level. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Ho: Select an answerv?Vv H: Select an answerv Check Answer ip % 8.

An Office of Admission document claims that 55.9% of UVA undergraduates are female. To test this claim, a random sample of 215 UVA undergraduates was selected. In this sample, 58.5% were female. Is there sufficient evidence to conclude that the document's claim is false? Carry out a hypothesis test at a 4% significance level. A. The value of the standardized test statistic:  Note: For the next part, your answer should use interval notation. An answer of the form (−∞,?)(−∞,a) is expressed (-infty, a), an answer of the form (?,∞)(b,∞) is expressed (b, infty), and an answer of the form (−∞,?)∪(?,∞)(−∞,a)∪(b,∞) is expressed (-infty, a)U(b, infty). B. The rejection region for the standardized test statistic =    C. The p-value is:  D. Your decision for the hypothesis test:A. Do Not Reject ?1H1.B. Reject ?1H1.C. Reject ?0H0.D. Do Not Reject ?0H0.

Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A company claims that its packages of 100 candies are distributed with the following color percentages: 14% red, 21% orange, 14% yellow, 11% brown, 24% blue, and 16% green. Use the given sample data to test the claim that the color distribution is as claimed. Use a 0.025 significance level. Click the icon to view the color counts for the candy in the package. Click here to view the chi-square distribution table. Į The test statistic is (Round to two decimal places as needed.) The critical value is (Round to three decimal places as needed.) State the conclusion. Ho. There ▼ sufficient evidence to warrant rejection of the claim that the color distribution is as claimed. C Candy Package Counts Color Red Orange Yellow Brown Blue Green Candy Counts Number in Package 14 Print 25 6 9 27 19 Done X

According to a survey of 650 Web users from Generation​ Y, 351 reported using the Internet to download music. a. Determine the sample proportion. b. At the 5% significance​ level, do the data provide sufficient evidence to conclude that a majority of Generation Y Web users use the Internet to download​ music? Use the​ one-proportion z-test to perform the appropriate hypothesis​ test, after checking the conditions for the procedure.

An Office of Admission document claims that 56.4% of UVA undergraduates are female. To test this claim, a random sample of 235 UVA undergraduates was selected. In this sample, 59% were female. Is there sufficient evidence to conclude that the document's claim is false? Carry out a hypothesis test at a 10% significance level. A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (−∞,?)(−∞,a) is expressed (-infty, a), an answer of the form (?,∞)(b,∞) is expressed (b, infty), and an answer of the form (−∞,?)∪(?,∞)(−∞,a)∪(b,∞) is expressed (-infty, a)U(b, infty). B. The rejection region for the standardized test statistic:   C. The p-value is