Question: Normal 2 Scores on a training test are normally distributed with a mean of 73 and a standard deviation of 8. What percentage of folks

Normal 2

Scores on a training test are normally distributed with a mean of 73 and a standard deviation of 8. What percentage of folks get a score less than 91?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Normal 4 Scores on a training test are normally distributed with a mean of 73 and a standard deviation of 8. What percentage of folks get a score between 81 and 91?

A newspaper article reported that people spend a mean of6hours per day watching TV, with a standard deviation of1.9 hours. A psychologist would like to conduct interviews with the5% of the population...

STATISTICAL HYPOTHESIS GENERATION EXERCISE For each of the following research descriptions A. Write out the null and scientific (alternative) hypotheses B. Indicate whether a one-tailed or two-tailed...

Suppose Z follows the standard normal distribution. Calculate the following probabilities using the ALEKS calculator round your responses to at least three decimal places. (A) P(2 - 1.1) = (C) P(1.03...

In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.5. Answer parts (a)-(d) below. Homework Help - Q&A from...

Suppose Z follows the standard normal distribution. Calculate the following probabilities using the ALEKS calculator. Round your responses to at least three decimal places. a. P(Z 1.58) = b. P(Z...

1. Given a normal distribution of scores on a statistics test, with mean = 25 and standard deviation = 10, find the z-score equivalent for the following raw test scores. (2 points each for a total of...

0 Question 5 E 011 pt '0 3 2:3 96 CD Details For a standard normal distribution, find: P(z > c) = 0.2965 Find c rounded to two decimal places. Submit Question Refresher: A percentile for a value, x,...

hi, can you help me to answer them? Solve the problem. 1) For the study described below, identify the sample. A bank manager wants to know the average amount of time customers of his bank have to...

1 of 20 5.0 Points Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The...

Atmospheric pollution is a problem that has received much attention. Not all pollution, however, is from industrial sources. Volcanic eruptions can be a significant source of air pollution. The...

What can you say about SSE, SSR, and the utility of the regression equation for making predictions if a. r2 = 1? b. r2 = 0?

12117. At a given instant, a car travels along a circular curved road with a speed of 20 m>s while decreasing its speed at the rate of 3 m>s2. If the magnitude of the cars acceleration is 5 m>s2,...

On 1 March 2007 DB Limited issued R560 000 15% debentures at R98. The debentures were to be redeemed at par in four equal annual payments starting 28 February 2010. Required: Journalise the above...