#4 The number of interviews received within a month by TSU business graduates is normally distributed...
The number of interviews received within a month by TSU business graduates is normally distributed with a mean of 8 interviews and a standard deviation of 2 interviews. Graduates receiving the top 10% of interviews exceed how many interviews? O oo 9.79 10.56
a number of interviews recieved by a college graduating class is normally distributed with a mean of 8 interviews , standard deviation of 2 interviews 75% of all graduates recieve more than gow many interviews ? a. 5.87 b. 6.65 c. 7.45 d. 8.31 which is the correct answer. ?
1. The number of pizzas consumed per month by university students is Normally distributed with a mean of 12 and a standard deviation of 5 A. What proportion of students consume more than 14 pizzas per month? B. What is the probability that, in a random sample of 8 students, a sample average of more than 10 pizzas are consumed?
1) What is the probability of a randomly selected value from a normally distributed population falling within 1.5 standard deviations of the mean? 8) What is the probability of a randomly selected value from a normally distributed population NOT being between 0.68 standard deviations below the mean and 1.5 standard deviations above the mean? ***For the following questions, assume a business has an average daily revenue of $1200 and revenue levels are found to be normally distributed with a standard...
1. Suppose that the data concerning the first-year salaries of recent graduates is normally distributed with the population mean -S60000 and the population standard deviation ơ S15000. (20 points) Find the probability of a randomly selected recent graduate earning less than $45000 annually Find the probability of randomly selecting a recent graduate that makes more than S80000 a year, given the same normal distribution. Find the range of annual salaries of the top 15% earners, given the same distribution of...
The number of pizzas consumed per month by university students is normally distributed with a mean of 11 and a standard deviation of 3. Use Excel to answer the following questions: A. What proportion of students consume more than 14 pizzas per month? Probability = .158655 B. What is the probability that in a random sample of size 10, a total of more than 90 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample...
(1 point) The number of pizzas consumed per month by university students is normally distributed with a mean of 14 and a standard deviation of 5. A. What proportion of students consume more than 17 pizzas per month? Probability = B. What is the probability that in a random sample of size 9, a total of more than 135 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample of 9 students?) Probability =
4. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.4 years, and standard deviation of 3.2 years. If you randomly purchase 21 items, what is the probability that their mean life will be longer than 15 years? (Give answer to 4 decimal places.) 5. A particular fruit's weights are normally distributed, with a mean of 704 grams and a standard deviation of 12 grams. If you pick 12 fruit at random, what is...
4) Assume that IQ scores of college graduates are normally distributed. A researcher collects a random sample of 25 college graduates and tests their IQ. The sample had a mean IQ of 108 with a standard deviation of 15.6. a) Find a 95% confidence interval for the true mean IQ for college graduates. b) Provide the margin of error of the interval as your answer. Round your answer to 1 decimal place.
A plant manager knows that the number of boxes of supplies received weekly is normally distributed with a mean of 200 and a standard deviation of 20. What percentage of the time will fewer than 160 boxes of supplies arrive in a week?