McCallister conducts a study to examine the relationship between the amount of time kids spend home alone and then number of robbers they sent to jail. He finds an r2 value of .763 from his data.  How should Dr. McCallister interpret this result?  Based on the information presented, can he say that time spent home alone is a significant predictor of number of robbers sent to jail?  Why or why not?

Newborn babies are more likely to be boys than girls. A random sample found 13,173 boys were born among 25,468 newborn children. The sample proportion of boys was 0.5172. Is this sample evidence that the birth of boys is more common than the birth of girls in the entire population? Use a = 0.05.

GM is interested is interested in learning more about customer satisfaction with the performance of one of their automobiles. Several customers appear to be unhappy and have complained about early transmission failures. To learn more about this problem, GM wants to estimate the “Average Miles driven” before the failure occurred. For this GM used a random sample of actual transmission repairs on cars from their domestic dealerships. Following data (sent to you as a separate EXCEL file via e-mail) shows the actual number of miles driven at the time of transmission failure for 50 randomly chosen vehicles.   85,092 32,609 59,465 77,437 32,534 64,090 32,464 59,902 39,323 89,641 94,219 116,803 92,857 63,436 65,605 85,861 64,342 61,978 67,998 59,817 101,769 95,774 121,352 69,568 74,276 66,998 40,001 72,069 25,066 77,098 69,922 35,662 74,425 67,202 118,444 53,500 79,294 64,544 86,813 116,269 37,831…

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…