Find the critical value(s) for a left-tailed z-test with α = 0.06. Include a graph with your answer. The critical value(s) is (are). (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Find the indicated z-score shown in the graph to the right.

Find the t values for each of the following cases. b. Lower tail area of .05 with 50 degrees of freedom

Compute the z-score for each of the six entertainment expenses. (Round z-score calculations to 2 decimal places.  Negative amounts should be indicated by a minus sign.)          z157      z132      z109      z145      z125      z139      I need the last three i answered te first three myself

Harper collected data on students who make appointments to see their advisor to see how many failed to show up. The student records were divided into two groups: male (group 1) and female (group 2). A 93% confidnece interval for pi – P2 was found to be as follows: (0.03, 0.09) Interpret the endpoints of this interval in the context of this problem. Do not use the word "difference" in your answer.

OL th.. Frequency 8 9 0 T 10 20 30 40 LEAD 50 60 70 80 Data were collected on the lead levels of children of battery factory workers. The data are displayed in the histogram above. Choose the correct answer. The maximum lead level is less than 60 The median lead level (the level that exactly half the children exceed) is less than 30 There are 33 children in the data set. None of the other answers is true

Find the indicated z-scores shown in the graph. Click to view page 1 of the table. Click to view page 2 of the table. 0.0207 Z=? 0 0.0207 ✓ Z=? X LV The Z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.)

Find the indicated z-scores shown in the graph. Click to view page 1 of the table. Click to view page 2 of the table. 0.0244 0.0244 X z=? z=? ... The z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.)

Find the indicated z-scores shown in the graph. Click to view page 1 of the Standard Normal Table, Click to view page 2 of the Standard Normal Table, 0.4726 0.4726 z-2 0 z-? The z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.)

Big babies: The National Health Statistics Reports described a study in which a sample of 354 one-year-old baby boys were weighed. Their mean weight was 25.8 pounds with standard deviation 5.3 pounds. A pediatrician claims that the mean weight of one-year-old boys is greater than 25 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the a=0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 5