A group of undergraduate students at Cal Poly (Mintz, Mintz, Moore, and Schuh, 2002) conducted a study examining how much weight students carry in their backpacks. They weighed the backpacks of 100 students and compared the distributions of backpack weights between men and women. The student researchers also recorded the body weight of each student and computed the ratio of backpack weight to body weight for each student.   a. Perform the hypothesis test.  State the value of your test statistic, rounded to 2 decimal places. t = ____ c. Find the 99% confidence interval, rounded to 3 decimal places (______________, _____________)

Does it take more time for seeds to germinate if they are near rock music that is continuously playing compared to being near classical music? The 55 seeds that were exposed to rock music took an average of 29 days to germinate. The standard deviation was 5 days. The 59 seeds that were exposed to classical music took an average of 25 days to germinate. The standard deviation for these seeds was 10 days. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: H₁: Select an answer ✓ Select an answer ✓ Select an answer ✓ = Select an answer ✓ Select an answer ✓ (please enter a decimal) Select an answer (Please enter a decimal) c. The test statistic ? | = d. The p-value: e. The p-value is ? ✓ a f. Based on this, we should [Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal…

Pls help ASAP. Pls answer all questions I Humbly BEG PLS

A sample is part of the population. O True False

What is the proportion of the blood type O?

B Identify the sample proportion and use the symbol that represents it C. For the hypothesis test, identify the value used for the population proportion and use the symbol that represents it.

Please solve this question below. Thank you! 9. Challenge A bag contains 200 red and blue marbles. Three people each took samples of 25 marbles and noted the number of red marbles. Person A 17 red marbles out of 25 marbles Person B 12 red marbles out of 25 marbles Person C 20 red marbles out of 25 marbles a. Combine the samples to make one large sample. Use that sample to predict the number of red marbles in a similar bag that contains 300 marbles. b. Explain how having a fourth sample would make the estimate better.

how do i solve for parts b, d, and e?

According to a report on consumer fraud and identity theft, 22% of all complaints for a year were for identity theft. In that year, Wisconsin had 787 complaints of identity theft out of 3498 consumer complaints. Does this data provide enough evidence to show that Wisconsin had a higher proportion of identity theft than 22%? Test at the 1% level. State the hypotheses. Ho: p? v Ha: p|? v Calculate the test statistic. Round to four decimal places. Calculate the standardized test statistic. Round to three decimal places. Z = Find the p-value. Round to four decimal places. p-value = State your decision. O Since the p-value is less than .01, reject Họ. O Since the p-value is greater than .01, reject Ho. O Since the p-value is less than .01, fail to reject Ho. O Since the p-value is greater than .01, fail to reject Ho. Interpret the results. O At the 1% level of significance, there is enough evidence to show that the proportion of complaints due to identity theft in Wisconsin is not equal to…

Which of the following is NOT a voluntary response sample? Choose the correct answer below. OA. A survey is taken at a mall by asking passersby if they will fill out the survey. OB. A local dentist asks her patients to fill out a questionnaire and mail it back to determine the quality of the care received during an office visit. OC. A radio station asks for call-in responses to a question concerning city recycling. O D. Quiz scores from a college level statistics course are analyzed to determine student progress.