Independent random samples of individuals showed that of 200 women, 40 own dogs, and of 175 men, 27 own dogs. We want to determine at α = 0.1 if there is a difference in the proportion of women who own dogs and the proportion of men who own dogs. Assume all test conditions are satisfied. What are the null and alternate hypotheses (write in equation/inequality form)
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Independent random samples of individuals showed that of 200 women, 40 own dogs, and of 175 men, 27 own dogs. We want to determine at α = 0.1 if there is a difference in the proportion of women who own dogs and the proportion of men who own dogs. Assume all test conditions are satisfied.
What are the null and alternate hypotheses (write in equation/inequality form)?
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- A survey of 90 recently delivered women on the rolls of a county welfare department revealed that 27 had a history of intrapartum or postpartum infection. Can we conclude that the population proportion with a history of intrapartum or postpartum infection is significantly less than or equal to 0.25? Let alpha = 0.05.Use the following information for questions 1 and 2. Independent random samples of individuals showed that of 200 women, 40 own dogs, and of 175 men, 27 own dogs. We want to determine at α = 0.1 if there is a difference in the proportion of women who own dogs and the proportion of men who own dogs. Assume all test conditions are satisfied. What are the null and alternate hypotheses (write in equation/inequality form)?Two researchers are testing the null hypothesis that a population proportion p is equal to 0.30, and the alternative hypothesis that π = 0.30. Both take samples of 100 observations. Researcher A finds a sample proportion of 0.29, and Researcher B finds a sample proportion of 0.34. For which researcher will the p-value of the test be smaller? Explain without actually doing any computations.
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- Is there a difference between men and women when it comes to seeking preventative healthcare? At the alpha = 0.01 of significance, test the claim that the proportion of those who have had a wellness visit with their physician in the year is the same for men and womenLet represent the proportion of females who have had a wellness visit with physician in the past year and represent the proportion of males who have done the same. 1. Which would be correct hypotheses for this O H 0 :p P =p M ,H 1 ;p 1 >p M O H 0 :p F ne p M ,H 1 ;p F >p M H 0 :p l =p M ,H 1 ;p F <p M H 0 :p P =p M ,H 1 ;p F backslash p M O O In a random sample of 150 females , 129 have had a wellness visit with their physician in the past yearIn a random sample of 159 maleti, 109 have had a wellness visit with their physician in the past year. 2.Find the test statistic (2 decimal places) 3. Give the value (4 decimal places) only answer 2 and 3 pleaseFor the given scenario, determine the type of error that was made, if any. (Hint: Begin by determining the null and alternative hypotheses.) A pharmaceutical company claims only 2% as the percentage of people taking a particular drug that experience significant side effects. One researcher claims that the percentage of people taking a particular drug that experience significant side effects is less than 2%. The researcher conducts a hypothesis test and fails to reject the null hypothesis. Assume that in reality, the percentage of people taking a particular drug that experience significant side effects is 0.5%. Was an error made? If so, what type?According to a food website, the mean consumption of popcorn annually by Americans is 63 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Upper H 0H0: ▼ muμ sigmaσ pp ▼ equals= not equals≠ nothing Upper H 1H1: ▼ sigmaσ muμ pp ▼ less than< greater than> not equals≠ nothing (Type integers or decimals. Do not round.) (b) A sample of 835 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department.