A certain drug is used to treat asthma. In a clinical trial of the drug. 22 of 271 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 8% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) 1-Propiiest prop e0.08 ==0.0716516ee below p0.525E04477 p=0.081180e11e n=271 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test O Two-tailed test O Left-tailed test

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According to a recent study in New York, 15% of shoppers are unfairly being charged sales tax in non-taxable items.  Mr. Hypothesis feels this proportion is too low.  He tests his belief by conducting a survey of 200 random shoppers. Which of the following is the null hypothesis?   a. The percent of shoppers unfairly being charged sales tax on non-taxable items < .15   b. The percent of shoppers unfairly being charged sales tax on non-taxable items > .15   c. The percent of shoppers unfairly being charged sales tax on non-taxable items = .15

Test the claim that the mean GPA of night students is larger than 2.5 at the 0.01 significance level. The null and alternative hypothesis would be: Ho:µ > 2.5 Ho:µ = 2.5 H:µ 0.625 H:p=0.625 H:µ 2.5 H :p > 0.625 H:p< 0.625 H:p 0.625 The test is: right-tailed left-tailed two-tailed Based on a sample of 35 people, the sample mean GPA was 2.52 with a standard deviation of 0.08 The p-value is: (to 2 decimals). Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis Question Help: DVideo Message instructor メ N

This Question: 4 pts 1 of 9 (0 complete) This Quiz: 45 pts possible Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 54% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.1661. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. A. Reject Ho because the P-value is greater than a. B. Reject Ho because the P-value is less than or equal to a. C. Fail to reject H, because the P-value is less than or equal to a. O D. Fail to reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is…

Test the claim that the proportion of men who own cats is larger than 20% at the .01 significance level. The null and alternative hypothesis would be: Ho: P 0.2 Hop 0.2 Hoμ = 0.2 H₁: p0.2 H₁ : μ 0.2 (to 2 decimals) (to 2 decimals) Ho: p = 0.2 0 H₁: p < 0.2

(06.05 MC) Which of the following is a TRUE statement about hypothesis testing? Group of answer choices The probability of a Type I error plus the probability of a Type II error always equals one. The power of a test concerns its ability to detect a null hypothesis. If there is sufficient evidence to reject a null hypothesis at the 5% level, then there is sufficient evidence to reject it at the 10% level. Whether to use a one-sided or a two-sided test is typically decided after the data are gathered. If a hypothesis test is conducted at the 1% level, there is a 1% chance of rejecting the null hypothesis.