SAT (Scholastic Aptitude Test) scores follow a normal distribution such that N(1150, 150). Round your answers to 2 decimal places. a. Find the z-score by hand of someone who received a 1350 on their SAT.   b. What is the probability someone scores 1350 or ABOVE on their SAT?

Find the margin of error for the given values of c, s, and n. c = 0.99, s 6, n = 13 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)

Compare the distributions of scores. How are students distributed across the range of scores? Are the scores higher in math or verbal ability? Can you please show details and formula?   Math Test 67 45 68 70 72 85 90 99 50 73 77 78 52 66 89 75   Verbal Test 89 90 78 77 75 70 56 60 77 78 80 92 98 72 77 82

The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months. A sample of 64 of these smartphones is taken. What is the distribution for the total length of time 64 batteries last? (Enter exact numbers as integers, fractions, or decimals.) X - ? v Additional Materials eBook

The scores of the top ten finishers in a recent golf tournament are listed below. Find the mean score 71 67 67 72 76 72 73 68 72 72

Use the standard normal table to find the z-score that corresponds to the given percentile. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries use the z-score halfway between the corresponding z-scores. If convenient, use technology to find the z-score. P 25 Click to view page 1 of the table. Click to view page 2 of the table. The z-score that corresponds to P25 is (Round to two decimal places as needed.)

Claim: The proportion of children who play sports is less than 55%. Sample statistics include n = 1,320 subjects with 33% saying that they play a sport. Find the value of the test statistic.  Round your answer to two decimal places, if needed.

Use the dataset of GPAs below to calculate the tail probability of a GPA of 1.3. You should use a calculator to help you. GPAs: 3.0, 1.2, 4.0, 3.9, 3.8, 3.0, 2.7, 2.3, 1.9, 4.0, 1.9, 1.1 Write your answer as a number between 0 and 1, where 0 is 0% and 1 is 100%. Round your answer to three decimal places.

The histogram below gives the high temperatures for a simple random sample of May, June, and July days.  What percent of days are between 70 and 80 degrees?  Round your answer to the nearest percent.

Find the margin of error for the given values of c, s, and n. c = 0.99, s = 3.1, n = 27 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)