The number of fans in attendance at a concert would be an example of which measurement scale?

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 at most 3 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.

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 111? 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 color of a grocery store’s shopping carts would be an example of which measurement scale?

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 105? 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.

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 most 123? 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.

Suppose a jar of 50 marbles consists of 10 red marbles, 12 blue marbles, 5 green marbles, 4 black marbles, 1 white marble, 9 pink marbles, 3 orange marbles, and 6 yellow marbles.    If you were to randomly select one marble from the jar, what is the probability that the marble would be red or black? Type your answer as a decimal rounded to 2 decimal places. For example if you thought the answer was 0.12345 then you would type in 0.12.

A person’s favorite brand of cereal would be an example of which measurement scale?

A math professor was interested in figuring out whether students taking mathematics classes  at his school preferred to take them online or face to face. He decided to randomly survey students taking mathematics classes that semester. He ended up surveying 120 students who were taking math classes that semester, and 40 of them stated that they preferred taking their math classes online while 80 of them preferred taking them face to face.   Construct and interpret a 92% confidence interval for the true proportion of students at the school that prefer to take math classes face to face.  Make sure to address the following in your response: Check any and all relevant assumptions and state how you determined whether or not they were satisfied (Be as specific as possible) Make sure to type your confidence interval in an interval format with each bound rounded to 3 decimal places [For example, (0.123, 0.456)] Make sure to include an interpretation in context of the given problem

A math professor was interested in figuring out whether students taking mathematics classes  at his school preferred to take them online or face to face. He decided to randomly survey students taking mathematics classes that semester. He ended up surveying 120 students who were taking math classes that semester, and 37 of them stated that they preferred taking their math classes online while 83 of them preferred taking them face to face.   Construct and interpret a 95% confidence interval for the true proportion of students at the school that prefer to take math classes face to face.  Make sure to address the following in your response: Check any and all relevant assumptions and state how you determined whether or not they were satisfied (Be as specific as possible) Make sure to type your confidence interval in an interval format with each bound rounded to 3 decimal places  [For example, (0.123, 0.456)] Make sure to include an interpretation in context of the given problem