Shannon is a randomly selected SAT taker, and nothing is known about Shannon’s SAT aptitude. What...
Shannon is a randomly selected SAT taker, and nothing is known about Shannon’s SAT aptitude. What is the probability Shannon scores at most 1,860 on her SATs given that the SAT had mean 1,500 and standard deviation 300?
a. 0.8869
b. 0.1151
c. 0.8849
d. 0.1131
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Shannon is a randomly selected SAT taker, and nothing is known
about Shannon’s SAT aptitude. What...
the national average SAT score (for Verbal and Math) is 1028. Suppose that nothing is known...
the national average SAT score (for Verbal and Math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. If a random sample of 200 scores were selected and the sample mean were calculated to be 1050, would you be surprised? Explain.
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known...
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places Source: New York Times Almanac. Part 1 out of 2 If a random sample of 245 scores was selected, find the probability that the sample mean is greater than 1041. Assume that the sample is...
Not ACT and SAT scores are both known to be normally distributed. In 2010, the mean...
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a. If 1 adult female is randomly selected, find the probability that her pulse rate is between beats per minute and beats per minute. The probability is nothing.
Assume that females have pulse rates that are normally distributed with a mean of μ=76.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts (a) through (c) below.a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 72 beats per minute and 80 beats per minute.The probability is nothing.
I. The data below set represents the scores of 12 randomly selected students on the SAT...
I. The data below set represents the scores of 12 randomly selected students on the SAT Physics Subject Test. Assume the population test scores are normally distributed and the population standard deviation is 104. 590 450 490 680 380 500 570 620 640 530 780 720 /2 (a) Find the point estimate of the population mean. (b) Construct a 90% confidence interval for the population mean. Interpret the results. (c) Does it seem possible that the population mean could equal...
please show how its done on TI-64 1. SAT scores are distributed with a mean of...
please show how its done on TI-64 1. SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SAT score of first year students at your college. If you would like to limit the margin of error of your 95% confidence interval to 25 points, how many students should you sample? 3. If n=31, ¯xx¯(x-bar)=36, and s=6, construct a confidence interval at a 98% confidence level. Assume the...
1.) What is the probability that any randomly selected student (male or female) had a high...
1.) What is the probability that any randomly selected student (male or female) had a high school GPA between 3.00 and 4.00? Solve this problem using the Standard Normal Table (Z table). Show all work and provide the probability as a decimal rounded to four decimal places. 2.) If a female student had a high school GPA of 4.00, what percentile would this be for all female students? Solve this problem using the Standard Normal Table (Z table). Show all...
In a lot of 200 electrical fuses, 20 are known to be nonconforming. A sample of 10 fuses is selected. (a) What is the probability distribution of the number of nonconforming fuses in the sample? What are its mean and standard deviation? (b) Using the bino
In a lot of 200 electrical fuses, 20 are known to be nonconforming. A sample of 10 fuses is selected.(a) What is the probability distribution of the number of nonconforming fuses in the sample? What are its mean and standard deviation?(b) Using the binomial distribution as an approximation to the hypergeometric, find the probability of getting 2 nonconforming fuses. What is the probability of getting at most 2 nonconforming fuses?
In a previous study, 180 randomly selected adult males had their weights taken that resulted in a standard deviation of 18.05 kg
In a previous study, 180 randomly selected adult males had their weights taken that resulted in a standard deviation of 18.05 kg. Current researchers plan to study the weights of male medical students. How many male medical students must be weighed to estimate the mean weight of all male medical students? They have assumed that weights of male medical students have less variation than weights of the population of adult males and plan to let σ = 18.05 kg. Additionally,...
please just answer 16, 17, 18, 23 r 4 16. Suppose that the scores of architects...
please just answer 16, 17, 18, 23
r 4 16. Suppose that the scores of architects on a particular crcativity test are normally distributcd. Using a normal curve table, what percentage of architects have Z scores (a) above.10, (b) below .10, (c) above .20, (d) below.20, (e) above 1.10 () below i.10, (g) above-10, and (h) beiow-.10? 17. In the example in problem 16, using a normal curve table, what is the minimum Z score an architect can have on...
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places Source: New York Times Almanac. Part 1 out of 2 If a random sample of 245 scores was selected, find the probability that the sample mean is greater than 1041. Assume that the sample is...
Not ACT and SAT scores are both known to be normally distributed. In 2010, the mean and standard deviation for the ACT were ye21 and o-7, respectively. The mean and standard devlation for the SAT were #1510 and ơ-310, respectively a. what ACT score would place a student in the same percentile as a student who scored 1970 on the SAT in 20107 (In other words, what ACT score is 'equivalent to an SAT score of 19707) Round your answer...
I. The data below set represents the scores of 12 randomly selected students on the SAT Physics Subject Test. Assume the population test scores are normally distributed and the population standard deviation is 104. 590 450 490 680 380 500 570 620 640 530 780 720 /2 (a) Find the point estimate of the population mean. (b) Construct a 90% confidence interval for the population mean. Interpret the results. (c) Does it seem possible that the population mean could equal...
please just answer 16, 17, 18, 23
r 4 16. Suppose that the scores of architects on a particular crcativity test are normally distributcd. Using a normal curve table, what percentage of architects have Z scores (a) above.10, (b) below .10, (c) above .20, (d) below.20, (e) above 1.10 () below i.10, (g) above-10, and (h) beiow-.10? 17. In the example in problem 16, using a normal curve table, what is the minimum Z score an architect can have on...
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