After post-graduate study, Mike found a job as HR analyst in London. The company is currently recruiting Chief Marketing Officer. The HR department recently sent out a knowledge test to the applicants after the initial CV screening. At this stage of selection, the company does not invite the lowest scoring 30% back for the next face-to-face interview. According to the historical data, the test scores on this test are normally distributed and has a mean of 70 with standard deviation of 10. What mark (to the nearest whole number) must a candidate achieve in order to secure an interview? 2.How much is the 95% confidence interval for the test scores? 3.The company offers free buffet lunch for candidates attending the interview. As a HR analyst, Mike is asked to estimate the amount of salad to order for the interview day. Sampling suggests that the amount of salad taken by each candidate distributes as the below diagram. What is the distribution as described and probability density function of the distribution in the diagram? What is the probability of the blue area in the diagram? (x)P(18

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Answered: What mark (to the nearest whole number)…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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After post-graduate study, Mike found a job as HR analyst in London. The company is currently recruiting Chief Marketing Officer. The HR department recently sent out a knowledge test to the applicants after the initial CV screening. At this stage of selection, the company does not invite the lowest scoring 30% back for the next face-to-face interview. According to the historical data, the test scores on this test are normally distributed and has a mean of 70 with standard deviation of 10.

What mark (to the nearest whole number) must a candidate achieve in order to secure an interview?

2.How much is the 95% confidence interval for the test scores?

3.The company offers free buffet lunch for candidates attending the interview. As a HR analyst, Mike is asked to estimate the amount of salad to order for the interview day. Sampling suggests that the amount of salad taken by each candidate distributes as the below diagram. What is the distribution as described and probability density function of the distribution in the diagram? What is the probability of the blue area in the diagram?

(x)
P(18 <x< 24) = ?
1/15
16 18 24
Salad Weight (oz.)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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