A professor at a local college noted that the grades of his students were normally distributed with an average percentage of 74 and a population standard deviation of 10
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Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score related to your proportion. Put that value along with the values of mean and SD to find the score.
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A professor at a local college noted that the grades of his students were normally distributed with an average percentage of 74 and a population standard deviation of 10
A professor at a local university noted that the grades of her students were normally distributed...
A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11. Answer the following questions rounding your solutions to 4 decimal places. The professor has informed the class that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A?
Two professors at a local college developed a new teaching curriculum designed to increase students' grades...
Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 48% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 17 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a=0.1 level of significance? Complete parts (a) through (g). Because...
nswer the following TWO questions uestion (1) (30 Marks A) (5 Marks) The time required to build a computer is normally distributed with a mean of 50 minutes and a standard deviation of 10 minutes. Wh...
nswer the following TWO questions uestion (1) (30 Marks A) (5 Marks) The time required to build a computer is normally distributed with a mean of 50 minutes and a standard deviation of 10 minutes. What is the probability that a computer is assembled in a time between 45 and 60 minutes? B) (5 Marks) It was noted that the amount of oil in each "32-ounce" bottle is actually a normally distributed random variable, with a mean of 32.2 ounces...
41. Find the area under the standard normal curve to the left of a, z= 1.18...
41. Find the area under the standard normal curve to the left of a, z= 1.18 b. z--1.85 c. 2-2.48 d. z-0.08 e, z=-1.25 g. z 0.05 h.-0.92 i. z- 0,00 j. z 3.24 4 Aert machn rodcas compoets havientinetes A of measuring samples of these components, it is found that the standard deviation is 0.2 centimeters. A test is carried out on a sample to check whether the data on the lengths of components is normally distributed and it...
Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 48% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 17 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a=0.1 level of significance? Complete parts (a) through (g). Because...
nswer the following TWO questions uestion (1) (30 Marks A) (5 Marks) The time required to build a computer is normally distributed with a mean of 50 minutes and a standard deviation of 10 minutes. What is the probability that a computer is assembled in a time between 45 and 60 minutes? B) (5 Marks) It was noted that the amount of oil in each "32-ounce" bottle is actually a normally distributed random variable, with a mean of 32.2 ounces...
41. Find the area under the standard normal curve to the left of a, z= 1.18 b. z--1.85 c. 2-2.48 d. z-0.08 e, z=-1.25 g. z 0.05 h.-0.92 i. z- 0,00 j. z 3.24 4 Aert machn rodcas compoets havientinetes A of measuring samples of these components, it is found that the standard deviation is 0.2 centimeters. A test is carried out on a sample to check whether the data on the lengths of components is normally distributed and it...
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