Help me answer 7-15 pls

. Question 7 0/3 pts 03 $9 Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 43 46 41 47 48 41 46 Left 40 47 42 46 44 39 46 43 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer #) Select an answer # |Select an answer (please enter a decimal) H1: Select an answer Select an answer + Select an answer (Please enter a decimal) b. The test statistic ? # (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ( ? #) e. Based on this, we should | Select an answer * the null hypothesis. f. Thus, the final conclusion is that ... The results are statistically insignificant at a = 0.05, so there is statistically significant evidence to conclude that the population mean time to complete the obstacle course with a patch over the right eye is equal to the population mean time to complete the obstacle course with a patch over the left eye. The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the eight volunteers that were completed the course slower on average with the patch over the right eye compared to the left eye.The results are statistically insignificant at a = 0.05, so there is insufficient evidence to conclude that the population mean time to complete the obstacle course with a patch over the right eye is greater than the population mean time to complete the obstacle course with a patch over the left eye. The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the population mean time to complete the obstacle course with a patch over the right eye is greater than the population mean time to complete the obstacle course with a patch over the left eye.Question 8 0/5 pts 3 $9 On average is the younger sibling's IQ different from the older sibling's IQ? Ten sibling pairs were given IQ tests. The data are shown below. IQ Scores Younger 109 92 96 111 89 Sibling 88 105 84 89 108 Older 107 83 97 113 81 87 79 80 Sibling 104 Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: |Select an answer # Select an answer # Select an answer # (please enter a decimal) H1 : Select an answer * Select an answer + Select an answer # (Please enter a decimal) b. The test statistic ? (please show your answer to 3 decimal places.) c. The p-value = Please show your answer to 4 decimal places.) d. The p-value is ( ? + a e. Based on this, we should | Select an answer + ] the null hypothesis. f. Thus, the final conclusion is that ...The results are statistically insignificant at o: - I].i}1, so there is statistically significant evidence to conclude that the population mean IQ score for younger siblings is equal to the population mean IQ score for older siblings. The results are statistically signicant at o - i101. so there is sufficient evidence to oonclude that the population mean IQ score for younger siblings is not the same as the population mean IQ score for older siblings The results are statistically insignificant at o = I.'I.tli . so there is insufficient evidence to conclude that the population mean IQ score for younger siblings is not the same as the population mean IQ score for older siblings. The results are statistically signicant at o - I101. so there is sufficient evidence to conclude that the ten younger siblings' IQ scores are not the same on average than the ten older siblings' IQ scores. g. interpret the p-value in the oontext of the study. There is a 1.13s chance that the mean IQ score for the in younger siblings differs by at least 5.? points from the mean IQ score for the ill older siblings. If the sample mean IQ score for the ill younger siblings is the same as the sample mean IQ score for the 10 older siblings and if another 1I.'I sibling pairs are given an IQ test then there would be a 1.13% chance of concluding that the mean IQ score for the in younger siblings differs by at least 5.? points from the mean IQ score for the 1|] older siblings. There is a 1.13% chance of a Type l error. If the population mean IQ score for younger siblings is the same as the population mean IQ score for older siblings and if another in sibling pairs are given an IQ test then there would be a 1.13% chanoe that the mean IQ score for the 1i] younger siblings would differ by at least 5.? points from the mean IQscore for the it! older siblings. h. interpret the level of significance In the contest of the study. There is a lil- chance that the population mean IQ score is the same for younger and older siblings. If the population mean IQ score for younger siblings is the same as the population mean lQ score for older siblings and if another ill sibling pairs are given an IQ testI then there would be a 1% chance that we would end up falsely concuding that the sample mean IQscones for these 1i] sibling pairs differ from each other. If the population mean IQ score for younger siblings is the same as the population mean IQ soore for older siblings and if another if] sibling pairs are given an IQ test, then there would be a 1st chance that we would end up falsely concuding that the pomilation mean IQ score for younger siblings is not the same as the population mean iQ score for older siblings There is a Iii. chance that you are so much smarter than your sibling that there is no need to take an IQ test to rnaite a comparison. Question 9 1p A hypothesis test was performed to decide whether houses are more prone to being lost to fire than condominiums are. The researcher looked at 1500 randomly selected houses and 1200 randomly selected condominiums over a ten year period. Then, since over 30 of each were in the sample, the researcher can use a z-Test for the difference between two proportions. true false. Question 10 A hypothesis test was performed to decide whether men spend less time at the gym than women. a = 0.05 and p = 0.12. If a man and a woman are randomly selected there is a 12% chance that the man spends less time in the gym compared to the woman. o false o true. Question 11 A hypothesis test was performed to decide whether the mean number of words spoken per day by men is fewer than for women. a = 0.05 and p = 0.02. If a man and a woman are randomly selected there is a 2% chance that the man will speak fewer words than the woman on that day. false O trueQuestion 12 @ 1 pt For each scenario listed below, determine whether the scenario represents an Independent Samples or Dependent Samples (Matched Pairs) situation by placing the appropriate letter in the box provided. a. Comparing the daily high temperatures in Los Angeles and San Diego for each day of the summer: Matched Pairs Independent Samples b. Comparing the number of times 50 students in California and 50 Students in Texas ate out in restaurants last year: Matched Pairs Independent Samples c. Comparing revenue at a bike shop in March and in September: Matched Pairs Independent Samples d. Comparing the calories consumed by 50 people for breakfast and for dinner: Independent Samples Matched Pairs. Question 13 0/1 pt 3 Part 1 of 3 How much more likely are alcoholics to say sober for a year after counseling if their best friend is not an alcoholic vs. if their best friend is an alcoholic? A researcher tracked 703 alcoholics whose best friends were not alcoholics and 614 alcoholics whose best friends were alcoholics. A year later 552 of those whose best friends were not alcoholics stayed sober for the year and 304 of those whose best friends were alcoholics stayed sober for the year. For this study, we should use o t-interval for the difference between two independent population means t-interval for a population mean Z-interval for the difference between two population proportions t-interval for the difference between two dependent population means Z-interval for a population proportion. Question 14 0/1 pt Part 1 of 3 What is the average increase in stock prices after a positive earnings report? A researcher randomly selected ten stocks that recently reported positive earnings. The before and after prices for each of these stocks are shown below. Stock Prices Before and After a Positive Earnings Report Before 25.24 36.82 30.34 37.62 33.33 28.33 43.92 32.57 47.39 45.51 After 35.06 40.46 31.28 42.27 52.91 29.82 47.23 50.11 54.47 49.47 Assume both follow a Normal distribution. For this study, we should use Select an answerQuestion 15 0/1 pt 03 # 99 Part 1 of 3 How much more should you expect to pay for a gallon of organic milk compared to what you would pay for regular milk? A researcher looked at the prices of organic milk at several markets and regular milk at several markets throughout the year. The data below shows the results. Organic: 5.85, 6.46, 4.78, 5.67, 4.76, 5.18, 6.26, 6.01, 4.50, 5.88, 6.67, 5.50 Regular: 3.46, 3.34, 2.84, 3.37, 3.20, 3.12, 2.91, 3.36, 3.47, 2.52 Assume both follow a Normal distribution. For this study, we should use Select an