Copy Machine Use A store manager hypothesizes that the average number of pages a person copies on the store's copy machine is less than 40. A sample of 36 customers' orders is selected. At α=0.10, is there enough evidence to support the claim using the P-value method? Assume σ is 30.9. Use a graphing calculator.  32  29  49  21  24  72  70  21  85  61  42  15  27  113  36  37  58  82  80  51  122  21  49  36  43  61  17  9  9  5  4  1  2  2  1  8    Find the P-value. Round the answer to four decimal places.

1 the commuting times of an employee are show in 10 consecutive days in minutes: 71 67 67 70 78 72 75 70 74 77 The interquartile range of the data set is 5 minutes. interpret this IQR in context A. the middle 50% of the sorted commute times has a range of 5 minutes B. the most common commute tint was 5 minutes c. the average commute time was 5 minutes D. the median of the commute time is 5 minutes 2. suppose a random sample is taken of 90 students in a tech class and the researchers recorded the number of minutes spent on a smart phone during a typical day and the students overall GPA. the explanatory variable is the number of minutes spent on a smartphone each day. the researcher notices a linear trend on the scatterplot and creates a linear regression model. she finds a correlation coefficient of -0.91. which of the following statements is the best interpretation of this correlation? A. spending more minutes on a smartphone each day causes a student to have a lower GPA B.…

The results: A. Are, or B. Are not   significantly: A. High, or B. Low   so there: A. is, or B. is not

Relax! The General Social Survey asked 1719 people how many hours per day they were able to relax. The results are presented in the following table. Number of Hours Frequency 0 119 12345 192 325 262 322 240 6 146 7 44 8 Total 69 1719 Send data to Excel Consider these 1719 people to be a population. Let X be the number of hours of relaxation for a person sampled at random from this population. Submit