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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Use this information to answer the following question. What is the probability that a randomly selected person will have an IQ score of at least 93? Make sure to type in your answer as a decimal rounded to 3 decimal places. For example, if you thought the answer was 0.54321 then you would type in 0.543.

The CBEST is a test that individuals in California must take before they can become substitute teachers at the K-12 level. One portion of the exam is devoted to mathematics and it consists of 50 multiple choice questions that each have 5 possible options. Suppose Jim took the CBEST test and decided to randomly guess on all 50 questions. Use this information to answer the following question.  What is the probability that Jim gets exactly 12 correct?  Make sure to type in your answer as a decimal rounded to 3 decimal places. For example, if you thought the answer was 0.54321 then you would type in 0.543.

Steve Rogers, also known as Captain America was out on a run and was able to run 13 miles in 30 minutes which means that on average it took him about 2 minutes and 18 seconds (138 seconds) to run each mile. Dr. Banner took note of the time and was curious if Steve just ran 1 mile at a time, if his average time would be under 2 minutes (120 seconds) per mile. Dr. Banner decided to put Captain America to the test and he had him run a mile 40 times and he recorded the results each time. Out of those 40 times, he found the average time it took Captain America to run a mile was 117 seconds with a standard deviation of 5.2 seconds.  Based on the information above, carry out the appropriate hypothesis test at the

Which of the following is an example of a continuous random variable?  

Consider the following sample data set below. Calculate the standard deviation.  {8, 26, 23, 1, 11, 30, 9, 13, 12, 22} Make sure to round your final answer to 2 decimal places. For example, if you thought the final answer was 87.6543 then you would type in 87.65

Consider the following sample data set below. Calculate the standard deviation.  {12, 18, 6, 7, 8, 14, 21, 15, 3, 17} Make sure to round your final answer to 2 decimal places. For example, if you thought the final answer was 87.6543 then you would type in 87.65

The CBEST is a test that individuals in California must take before they can become substitute teachers at the K-12 level. One portion of the exam is devoted to mathematics and it consists of 50 multiple choice questions that each have 5 possible options. Suppose Jim took the CBEST test and decided to randomly guess on all 50 questions. Use this information to answer the following question.  What is the probability that Jim gets no more than 17 correct? Make sure to type in your answer as a decimal rounded to 3 decimal places. For example, if you thought the answer was 0.54321 then you would type in 0.543.

A study was conducted and it found that the mean annual salary for all California residents was $63,783 and the true standard deviation for all California residents was $7,240. Suppose you were to randomly sample 50 California residents. Use this information to answer the following question.  What is the probability that the average salary for the 50 individuals in your sample would be at most $65,250? Make sure to type in your answer as a decimal rounded to 3 decimal places. For example, if you thought the answer was 0.54321 then you would type in 0.543.

The CBEST is a test that individuals in California must take before they can become substitute teachers at the K-12 level. One portion of the exam is devoted to mathematics and it consists of 50 multiple choice questions that each have 5 possible options. Suppose Jim took the CBEST test and decided to randomly guess on all 50 questions. Use this information to answer the following question.  What is the probability that Jim gets anywhere from 13 to 21 correct? Make sure to type in your answer as a decimal rounded to 3 decimal places. For example, if you thought the answer was 0.54321 then you would type in 0.543.

Steve Rogers, also known as Captain America was out on a run and was able to run 13 miles in 30 minutes which means that on average it took him about 2 minutes and 18 seconds (138 seconds) to run each mile. Dr. Banner took note of the time and was curious if Steve just ran 1 mile at a time, if his average time would be under 2 minutes (120 seconds) per mile. Dr. Banner decided to put Captain America to the test and he had him run a mile 37 times and he recorded the results each time. Out of those 37 times, he found the average time it took Captain America to run a mile was 116 seconds with a standard deviation of 8.2 seconds.  Based on the information above, carry out the appropriate hypothesis test at the