Use a triple integral to Önd the volume of the solid enclosed by the cylinder x 2 + z 2 = 4 and the planes y = 1 and y + z = 4. Question solved general 1 month ago 3632

The mean score of adult men on a psychological test that measures "masculine stereotypes" is 4.88. A researcher studying hotel managers suspects that successful managers score higher than adult men in general. A random sample of 48 managers of large hotels has mean x-bar = 5.91. Assume the population standard deviation is sigma = 3.2.Using the null and alternative hypotheses that you set up in problem 5, the value of the test statistic for this hypothesis test is ______ Question solved general 1 month ago 4757

The heights of adult men in America are normally distributed, with a mean of 69.3 inches and a standard deviation of 2.64 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.5 inches and a standard deviation of 2.53 inches. a) If a man is 6 feet 3 inches tall, what is his z-score (to two decimal places)? z = 2.16 b) What percentage of men are SHORTER than 6 feet 3 inches? Round to nearest tenth of a percent. Question solved general 1 month ago 8713

In a experiment on relaxation techniques, subject's brain signals were measured before and after the relaxation exercises with the following results: Person 1 2 3 4 5 Before 32 38 66 49 29 After 26 36 59 52 24 Assuming the population is normally distributed, is there sufficient evidence to suggest that the relaxation exercise slowed the brain waves? (Use α=0.05) Question solved general 1 month ago 8754

The probability that an individual without a college education earns more than $100,000 is 0.4, whereas the probability that a person with a B.S. or higher degree earns more than $100,000 is 0.6. The probability that a person chosen at random has a B.S. degree is 0.5. What is the probability that a person has at least a B.S. degree if it is known that he or she earns more than $100,000? Question solved general 1 month ago 8413

A company claims that the mean weight per apple they ship is 120 grams with a standard deviation of 12 grams. Data generated from a sample of 49 apples randomly selected from a shipment indicated a mean weight of 122.5 grams per apple. Is there sufficient evidence to reject the company’s claim? (useα = 0.05) Question solved general 1 month ago 5324

How do I find the slope, y-intercept, and coordinates of (-1,7) (0,5)? Question solved general 1 month ago 1410

find the solution in slope-intercept form y+7=-3(x-1) and 3x+y=-4 Question solved general 1 month ago 5904

Calculate the percent error1. Jerri estimates that 30 people would attend the dinner event but only 25 people attended.2. Gene estimated the length of the fence to be 150 feet, but the actual measurement was 142 feet. Question solved general 1 month ago 5124

Sample spaces For each of the following, list the sample space and tell whether you think the events are equally likely:(a) Toss 2 coins; record the order of heads and tails.(b) A family has 3 children; record the number of boys.(c) Flip a coin until you get a head or 3 consecutive tails; record each flip.(d) Roll two dice; record the larger numbe Question solved general 1 month ago 2517

Given below are the number of successes and sample size for a simple random sample from a population. xequals6, nequals50, 90% level a. Determine the sample proportion. b. Decide whether using the one-proportion z-interval procedure is appropriate. c. If appropriate, use the one-proportion z-interval procedure to find the confidence interval at the specified confidence level. d. If appropriate, find the margin of error for the estimate of p and express the confidence interval in terms of the sample proportion and the margin of error. Question solved general 1 month ago 3774

Get the general term for the sequence being your t3 = 11 and the t20 = 244.2 Question solved general 1 month ago 1927

A restaurant offers the following limited lunch menu. Main Courses: Beef, Pork Roast, Duck, Quiche, Vegetables Corn, Green Beans. Beverages: Coffee, Tea, Milk. Desserts: Ice Cream, Brownies. If one item is selected from each of the four groups, in how many ways can a meal be ordered? Question solved general 1 month ago 9875

One positive number is 8 more than twice another. If the product is 731 Question solved general 1 month ago 6515

If a particular set of data is approximately normally distributed, we would find that approximately A) 2 of every 3 observations would fall between ±1 standard deviation around the mean. B) 4 of every 5 observations would fall between ±1.28 standard deviations around the mean. C) 19 of every 20 observations would fall between ±2 standard deviations around the mean. D) All of the above. Question solved general 1 month ago 9499

If the farmer has 250 feet of fencing to create a rectangular pen, define a function f that expresses the area of the field (measured in square feet) as a function of the width of the side of the field w (measured in feet). What is the maximum area possible? Question solved general 1 month ago 5927

Samuel said that 16:36 was equivalent to 72:32. What was Samuel's error? The ratio was not chosen from the same columns. He did not look at the correct rows. This problem was impossible. 16:36 has no equivalent ratios. The first and second terms for both ratios need to be in the same order. Question solved general 1 month ago 1180