POM HW#3.docx - Dean Streich POM 212 Business Statistics...

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Introduction to Statistics and Data Analysis
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Chapter 7 / Exercise 7.81
Introduction to Statistics and Data Analysis
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Dean StreichPOM 212Business Statistics Module 3 homework1.-459-147-385-113-340-401-215-2-33-3482.-2. -283-39-254-568-353-602-421-638-164-3783.Assign each reception center a number 1-9:- Darlene’s Wedding Center1- Magic Moments Reception Hall2- Rustic Realm Weddings3- Romance Gardens4- Classic Weddings5- Old Time Chapel6- Lovers Lane Weddings7- Accents-Modern Weddings 8- Century Falls Reception Center9Pick a row and column to start at – last digit of row 1 column 1. Moving left to right along row, continue to choose the last digit of each number.1 Darlene’s wedding center6 Old Time Chapel4 Romance Gardens
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Introduction to Statistics and Data Analysis
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Chapter 7 / Exercise 7.81
Introduction to Statistics and Data Analysis
Olsen/Peck
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2 Magic Moments Reception Hall4. The SAT scores have an average of 1200 with a standard deviation of 60. A sample of 36 scores is selected.a)What is the probability that the sample mean will be larger than 1224?
b)What is the probability that the sample mean will be less than 1230?
c)What is the probability that the sample mean will be between 1200 and 1214?
d)What is the probability that the sample mean will be greater than 1200?
e)What is the probability that the sample mean will be larger than 73.46?
5. A simple random sample of 8 employees of a corporation provided the following information.Employee 1 2 3 4 5 6 7 8Age 25 32 26 40 50 54 22 23Gender M M M M F M M Fa) Determine the point estimate for the average age of all employees.
b) What is the point estimate for the standard deviation of the population?
c) Determine a point estimate for the proportion of all employees who are female.
6. Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken.3a) What are the expected value, standard deviation, and shape of the samplingdistribution of the sample mean?
b) What is the probability that the sample mean will be at least $4?

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