2. Is P(AIB) the same as P (BIA)?
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- A recent college graduate is trying to decide whether or not pursuing a Master's degree is worth it. He decides examine this question at the a 0.05 level of significance, by comparing the salaries of a random sample of adults with only a Bachelor's degree to a random sample of adults with a Master's degree to see if the adults with a Master's degree earn more money. Let uB represent the average salary of an adult with a Bachelor's degree only and uM represent the average salary of an adult with a Master's degree. Which would be correct hypotheses for this test? O Ho: HB = M, H1: HB > µM O Ho:HB µM, H1 : µB = µM O Ho: HB = HM, H1: HB < µM O Ho: HB = µM, H1: HB # UM A random sample of 68 adults with only a Bachelor's degree had an average salary of $45452, with a standard deviation of $1187. A random sample of 40 adults with a Master's degree had an average salary of $47214, with a standard deviation of $1769. Find the test statistic (2 decimal places): Give the P-value (4 decimal places…The mayor of a town has proposed a plan for the annexation of a new bridge. A political study took a sample of 1400 voters in the town and found that 23% of the residents favored annexation. Using the data, a political strategist wants to test the claim that the percentage of residents who favor annexation is not equal to 26%. Testing at the 0.02 level, is there enough evidence to support the strategist's claim? A)Identify the value of the level of significance. B)Make the decision to reject or fail to reject the null hypothesis. C)State the conclusion of the hypothesis test.I need some help with my stats homework. It comes from introduction to the practice of Statistics Ninth edition exercise 6.72
- what is gcd(40,96)= ? clear answer plzWhat is uberallla?A survey was conducted to investigate trends of romantic relationships and online behaviors. Out of 250 adults in their 20s (20 to 29), 180 reported using social media to check on an ex (someone they used to date / be in a romantic relationship with). Out of 260 adults in their 40s (40 to 49), 156 reported using social media to check on an ex. You will perform a hypothesis test to see if the data provide evidence that there is a difference between the age groups in the proportions of people who checked on an ex. What is the alternative hypothesis? a.The proportion of people in their 20s who used social media to check on an ex is the same as the proportion of people in their 40s who used social media to check on an ex. b. The proportion of people in their 20s who used social media to check on an ex is different from the proportion of people in their 40s who used social media to check on an ex. c. The proportion of people in their 20s who used social media to check on an ex is…
- What does aij mean?A clinical researcher has developed a new test for measuring impulsiveness and would like to determine the validity of the test. The new test and an established measure of impulsiveness are both administered to a sample of participants. Describe the pattern of results that would establish concurrent validity for the new test.П. STA requires each student to train a rat to perform specific behaviors. Student grades are determined by the rats' performance. Mr. Simmons is concerned that students who have prior experience with training rats or other animals may have an advantage. To test the hypothesis, she gave each student a survey at the start of the class. The survey asked students about their previous animal related experiences. At the course's conclusion, she compared the rats' learning for students with prior animal experience to students without. Do the data suggest a significant difference between the two groups of students? Rat scores for students with animal Rat scores for students with no experience experience n = 15 М-66 n = 10 M= 78 SS = 1420 SS = 2030 State the hypotheses, critical values with df and alpha = .05, calculate the test statistic and show all your work for each step of the calculations, answer the question stated above in bold-italics, AND state your conclusion using the 3-sentence…
- What is the research hypothesis? a) The stress task will not lead to an increase in stress hormones. OR b) The stress task will lead to an increase in stress hormones.Is it true that LTL qq?Researchers compared the balance of a sample of elderly (E) patients with that of a separate sample of younger (Y ) patients. They exposed members of each age group to unpredictable noises and measured the amount of forward and backward sway. To test whether the elderly tend to sway more, they should choose which pair of hypotheses?
