A survey in March, 1994 issue of Life magazine indicated that nine out of ten Americans pray frequently and earnestly. A poll is now taken of 1000 randomly selected Americans. Assuming the 1994 survey is still accurate, find the probability that at least 925 of those polled will indicate that they pray earnestly.
Suppose that 15% of all adults jog. An opinion poll asks a simple random sample of 500 adults if they jog. a) What is the sampling proportion in the sample who jog? b) According to the 68-95-99.7 rule what is the probability that the sample proportion who jog will be 11.8% or greater?
The 3 problems are from the topic "Test of Hypothesis Based on a Single Sample" of Probability and Statistic. I need assistance with these problems. Need to find out the correct solution and answers. 9. Two different companies have applied to provide cable television service in a certain region. Let p denote the proportion
According to an article appearing in the Wall Street Journal, about 70% of all U.S. households have a cellular phone. suppose that you are conducting a survey of customer satisfaction regarding their cellular phone. If you called 11 households selected at random, what is the probability that: (a) every household has a cellul
(See attached files for full problem description) --- Using our data set from Unit 1, compose an email to the head of the American Intellectual Union which discusses the following: 1. How you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals? Job Satisfaction is an attitude a
18. Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category. Male (M) Female (F) Job Administrative (AD) 110 10 Salaried staff (SS)
The mean of normal probability distribution is 60; the standard deviation is 5. a. About what percent of the observations lie between 55 and 65? b. About what percent of the observations lie between 50 and 70? c. About what percent of the observations lie between 45 and 75 ? (See attached file for full problem description)
8. In Syed's town there are 11,303 Hindi speakers. In Rajiv's town there are 19,251 Hindi speakers. In Jon's town there are 1,092 Hindi speakers. For this situation, what is the variable under consideration? 9.The members of a board of directors have the following roles: president (P), vice president (V), secretary (S),
1. If two balanced die are rolled, the possible outcomes can be represented as follows: (1,1) (2,1) (3,1) (4,1) (5,1) (6,1) (1,2) (2,2) (3,2) (4,2) (5,2) (6,2) (1,3) (2,3) (3,3) (4,3) (5,3) (6,3) (1,4) (2,4) (3,4) (4,4) (5,4) (6,4) (1,5) (2,5) (3,5) (4,5) (5,5) (6,5) (1,6) (2,6) (3,6) (4,6) (5,6) (6,6) Determine the p
1. You flip a coin three times, the possible outcomes are HHH, HHT, HTH, THH, HTT, THT, TTH, and TTT. What is the probability of getting at least two tales? 2. A bag contains 7 red marbles, 3 blue marbles, and 5 green marbles. If a marble is selected from the bag at random, what is the probability that it is blue? 3. Let
Question 4: The Evergreen Fertilizer Company produces fertilizer. The company's fixed monthly cost is $25,000, and its variable cost per pound of fertilizer is $0.15. Evergreen sells the fertilizer for $0.40 per pound. Determine the monthly break-even volume for the company. Question 12: If the Evergreen Fertilizer Com
Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category. Job Male (M) Female (F) Administrative (AD) 110 10 Sal
I am having troubles with #2 part (b) in the attached document. In part (a) I found what I believe to be the joint distribution for the transformation. I am questioning my interval for T (domain) for this joint distribution however. To complete part (b) it will be necessary to take the integral of the joint in part (a) with resp
I have finished part of the table but I need help with the last two rows and the problems listed below. I need help on how the problems are solved and the correct formulas or clear solutions. I really do want to understand how to get the correct answer to the problems listed in attachment.
A sample of waterfall heights in Hawaii show that the average height is 261.5 feet with a standard deviation of 13.76 feet. What is the probability AND percent chance of randomly selecting a waterfall in Hawaii that has a height between 255.7 feet and 273.2 feet.
1. Radioactive atoms are unstable because they have to much energy. When they release their extra energy, they are said to decay. When studying cesium 137, it is found that during the course of decay over 365 days, 1,000,000 radioactive atoms are reduced to 977,287 radioactive atoms. a) find the mean number of radioactive ato
Assume a binomial probability distribution with n = 40 and π = .55. Compute the following: a. The mean and standard deviation of the random variable. b. The probability that x is 25 or greater. c. The probability that x is 15 or less. d. The probability that x is between 15 and 25 inclusive.
Part A) What is the relative dispersion for each group? Explain the relative dispersion difference between the two? Mean StdDev Group 1 78 15 Group 2 47 10 Group 1 - Trashcan wt in rural area Group 2 - Trashcan wt in city NOTE: Both sample
1. Assume you have ten (10) very expensive, leather bound books (all different authors) and you want to display these books on your fireplace mantle, but you are unsure how you want to arrange the books (by author, by height, year published, value . . . ). How many different ways can you arrange the books? 2. Assume you re
(See attached file for full problem description) --- 5. A farmer in Georgia must decide which crop to plant next year on his land: corn, peanuts, or soybeans. The return from each crop will be determined by whether a new trade bill with Russia passes the Senate. The profit the farmer will realize from each crop given the two
Please refer to the attached ms word file. #1: The Willow Furniture Company produces tables. The fixed monthly cost of production is $8,000, and the variable cost per table is $65. The tables sell for $180 a piece. a. For a monthly volume of 300 tables, determine the total cost, total revenue, and profit. b. Determin
Please provide answers with clear explanations explaining solutions and any formulas used clearly shown. IMPORTANT: Could you please add at the end of the question a list of formulae under relevant headings of other distributions I ask for. For example if I ask for binomial forumulae give all the formulae that would be requir
Using our data set from Unit 1, compose an email to the head of the American Intellectual Union which discusses the following: How you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals? Job Satisfaction is an attitude about one's job. It may be measured globally or via facets (
Please see the attached file for question. I am unable to get the correct answers as listed in my document even though I have the correct formula entered. (See attached file for full problem description) --- Develop a worksheet for this problem. Safety First is considering the introduction of a new product. The fixed co
The price of shares of Bank of Florida at the end of trading each day for the last year followed the normal distribution. Assume there were 240 trading days in the year. The mean price was $42.00 per share and the standard deviation was $2.25 per share. a. What percent of the days was the price over $45.00? How many days wou
Please see attached files for question. I can't seem to get the answer for PART3. (See attached file for full problem description with equations) --- A bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-
A bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up window occur at random, with a mean arrival rate of 24 customers per hour or 0.4 customers per minute. 1) What is the mean or expected number of custome
18. According to an IRS study, it takes an average of 330 minutes for taxpayers to prepare, copy, and electronically file a 1040 tax form. A consumer watchdog agency selects a random sample of 40 taxpayers and finds the standard deviation of the time to prepare, copy, and electronically file form 1040 is 80 minutes. a. What a
A normal population has a mean of 80.0 and a standard deviation of 14.0. a. Compute the probability of a value between 75.0 and 90.0. b. Compute the probability of a value 75.0 or less. c. Compute the probability of a value between 55.0 and 70.0.
1. suppose a computer chip manufacturer rejects 3% of the chips produced because they fail presale testing. A. What is the probability that the sixth chip you test is the first bad one you find? My Answer: Using the Geometric Probability Model Conditions: 1. Only 2 possible outcomes - yes 2. p is constant - yes, 0.03