A distribution of English exam scores has u = 70 and o = 4. A distribution of history exam scores has u = 60 and o = 20. For which exam would a score of X=78 have a higher standing? Explain your answer.

An ectopic pregnancy is twice as likely to develop when the pregnant woman is smoker compared to when she is a non-smoker. If 32 percent of women of childbearing age are smokers, what percentage of women who have ectopic pregnancies are they smokers? A. 0.4848

Below are the summary statistics calculated from the heights of students on a university campus. 25% percent of the students were ________ inches or taller. Median: 68 inches Minimum: 50 inches Q1: 58 inches Q3: 71 inches A. 71 B. 68 C. 58 D. Cannot be determined

Jason scored a 83% out of 100 and his perantile rank was 12 Rogns scored a 85% out of 100 his car percentile rank and was 75 out of Sam Scond 80% out of 100 and hur percentile rank was 70 who perform the best.?

Is the average time to complete an obstacle course different 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 48 44 47 40 46 41 46 48 Left 45 42 45 36 45 35 44 45 Assume a Normal distribution.  What can be concluded at the the αα = 0.10 level of significance level of significance? For this study, we should use        The null and alternative hypotheses would be:        `0:`                        `a:`                    2. The test statistic     =  (please show your answer to 4 decimal places.) 3. The p-value =  (Please show your answer to 4 decimal places.)

Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73

Is the average time to complete an obstacle course different 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 40 40 41 43 49 48 45 48 Left 37 36 41 43 48 46 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: Họ: pd vV (please enter a decimal) Select an answer v H1: ud vv (Please enter a decimal) Select an answer v b. The test statistic t v- (please show your answer to 3 decimal places.) c. The p-value = (Please show…

You have data set withn = You add one value to the data set, x10 9 values and a mean of = 31. 42. ¿What is the mean of the expanded data set?

Please solve for parts G, H, and I.

I can't understand why the data is the percentage of surveyed parents.