Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company claims that the percentage of blue candies is equal to 28%. Use a 0.05 significance level to test that claim.Identify the null and alternative hypotheses for this test. Choose the correct answer below,O A. Ho: p+0.28H,: p=0.28B. Ho: p=0.28H: p#0.28O C. Ho p=0.28H,: p<0.28O D. Ho: p= 0. 28H, p> 0.28Identify the test statistic for this hypothesis test.The test statistic for this hypothesis test is(Round to two decimal places as needed.)?Enter your answer in the answer box and then click Check Answer.Check AnswerpartsremainingClear All4:53 PM

Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company claims that the percentage of blue candies is equal to 28%. Use a 0.05 significance level to test that claim. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho p#0 28 H: p=0.28 YB. Ho: p=0.28 H,: p#0.28 O C. Ho p=0.28 H: p<0.28 O D. Ho: p= 0 28 H: p>028 Identify the test statistic for this hypothesis test The test statistic for this hypothesis test is (Round to two decimal places as needed.)

Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company claims that the percentage of blue candies is equal to 28%. Use a 0.05 significance level to test that claim. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho p#0 28 H: p=0.28 YB. Ho: p=0.28 H,: p#0.28 O C. Ho p=0.28 H: p<0.28 O D. Ho: p= 0 28 H: p>028 Identify the test statistic for this hypothesis test The test statistic for this hypothesis test is (Round to two decimal places as needed.)

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Suppose that a difference between two groups mean is examined. In the language of statistics, the null hypothesis (Ho) is a statement that is there is: O A. None of these O B. no difference between the sample means. O C.a difference between the population means. O D. no difference between the population means. O E. a difference between the sample means.
Suppose the null hypothesis is rejected. State the conclusion based on the results of the test. Six years ago, 11.4% of registered births were to teenage mothers. A sociologist believes that the percentage has increased since then. Which of the following is the correct conclusion? O A. There is sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O B. There is sufficient evidence to conclude that the percentage of teenage mothers has increased. O C. There is not sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O D. There is not sufficient evidence to conclude that the percentage of teenage mothers has increased.
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Suppose are running a study/poll about the proportion of voters who prefer Candidate A. You randomly sample 143 people and find that 91 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Họ:p = 0.65 Ha:p # 0.65 Calculate the test statistic, rounded to 3 decimal places. Question Help: O Video Submit Question %23 24 % & 5 6 8. e t y u d
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2. Which one of the following statements is correct? A. If you are told a sample percentage is 25%, you would need to know the sample size in order to convert that percentage to a proportion. B. We always begin a hypothesis test by assuming that the alternative hypothesis is true. C. The test statistic is affected by the size of the sample. D. A small P-value means we have evidence in favor of the null hypothesis. E. The test statistic will be negative if the claimed population proportion is smaller than the sample proportion.
Twenty students were randomly asked about their grades in English and Social Studies. (check attached photo) 1. What is the response variable in the study? A. grade in English B. grade in Social Studies C. either A or B D. neither A or B 2. What is the explanatory variable in the study? A. grade in English B. grade in Social Studies C. either A or B D. neither A or B 3. If the predictor variable is the grade in English, what is the value of the slope estimate? (Write in the nearest hundredths) 4. Interpret the value of the slope if the predictor variable is the grade in English. 5. If the predictor variable is the grade in English, what is the value of the y-intercept? 6. Interpret the value of the y-intercept if the predictor variable is the grade in English. 7. Write the regression line equation that predicts a student's grade in English?
The agriculture extension office wants to test the claim that GMO carrots are longer than Organic carrots. What kind of hypotheisis test is this? O 1 Proportion z-test 2 Proportions z-test 1 Mean t-test 2 Means Matched Pairs t-test 2 Independent Means t-test Which hypotheses do we want to test? O Họ: H1 = H2 HẠ: H1= H2 O Họ: H1 = H2 HA: H1 = H2 O Ho: H1 = H2 HA: H1> H2 O Ho: H1 = H2 HA: H1< H2
2. The steps of hypothesis testing You intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis test. A description of each of the steps of a hypothesis test follows, but they may be specified in the incorrect order. Specify the correct order of the steps. Determine the null and alternative hypotheses. Select a level of significance. Make a decision about the unknown population. Select a sample and compute the z-score for the sample mean.
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Which of the ff. statements are true I. A small t-score value indicates that the groups are similar. II. If tcalc is greater than tab , then the difference is significant. III. A p-value of 0.05 means there is 95% probability that the results happened by chance. IV. Independent sample t-test is used to compared means of two groups. O l and IV O I and III Il and IV O Il and III
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