Math Homework

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I have a prob I need help with. Do you want to own your own
Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy Express, The Fudge Company, Karmel Corn, and Rocky Mountain Chocolate Factory. Startup costs (in thousands of dollars) for a random sample of candy stores are given below. Assume that the population of x values has an approximately normal distribution. 90 177 128 96 75 94 116 100 85 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean startup cost x and sample standard deviation s. (Round your answers to one decimal place.) x = thousand dollars s = thousand dollars(b) Find a 90% confidence interval for the population average startup costs μ for candy store franchises. (Round your answers to one decimal place.) lower limit thousand dollars upper limit thousand dollars … read more
Ryan
Bachelor's Degree
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1). Assume that a random sample is used to estimate a population
1). Assume that a random sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. 98% confidence, the sample size… read more
Stevewh
Teacher
Bachelor's Degree
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1.) A study of college football games shows that the number
1.) A study of college football games shows that the number of holding penalties assessed has a mean of 2.3 penalties per game and a standard deviation of 0.8 penalties per game. What is the probabili… read more
Chirag
Master's Degree
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For a study conducted by the research department of a pharmaceutical
For a study conducted by the research department of a pharmaceutical company, randomly selected individuals were asked to report the amount of money they spend annually on prescription allergy relief … read more
Chirag
Master's Degree
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for susan athena, A random sample of 13 health maintenance
for susan athena, A random sample of 13 health maintenance organizations (HMOs) was selected. For each HMO, the co-payment (in dollars) for a doctor's office visit was recorded. The results are as fol… read more
SusanAthena
Master's Degree
Master's Degree
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The trade volume of a stock is the number of shares traded
The trade volume of a stock is the number of shares traded on a given day. The following data in millions represent the volume of a certain stock traded for a random sample of 40 trading days in 2007.… read more
Chirag
Master's Degree
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The trade volume of a stock is the number of shares traded
The trade volume of a stock is the number of shares traded on a given day. The following data in millions represent the volume of a certain stock traded for a random sample of 40 trading days in 2007.… read more
dhouse1940
Retired
Master's Degree
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The trade number of a stock is the number of shares traded
The trade number of a stock is the number of shares traded on a given day. The following data (in millions) so that 2.45 represents 2,450,000 shares traded. Represent the volume of a certain stock for… read more
Chirag
Master's Degree
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A manufacturing process drills holes in sheet metal that are
A manufacturing process drills holes in sheet metal that are supposed to be .5000 cm in diameter. Before and after a new drill press is installed, the hole diameter is carefully measured (in cm) for 1… read more
Chirag
Master's Degree
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What is the average length of a companys policy book Suppose
What is the average length of a company's policy book? Suppose policy books are sampled from 45 medium-sized companies. The average number of pages in the sample books is 213, and the population stand… read more
Chirag
Master's Degree
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According to Runzheimer International, the average cost of
According to Runzheimer International, the average cost of a domestic trip for business travelers in the financial industry is \$1,250. Suppose another travel industry research company takes a random s… read more
Sandhya_sharma
Master's Degree
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In a certain manufacturing process, the diameter of holes drilled
In a certain manufacturing process, the diameter of holes drilled in a steel plate is a normally distributed random variable. The process standard deviation is known to be s=0.005 cm.A sample of 15 pl… read more
ck_mba
Computer Engineer
Master's Degree
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1. Find the critical value zc necessary to form a confidence
1. Find the critical value zc necessary to form a confidence interval at the given level of confidence by Using the t-distribution table: a. 95% b. 98% 2. In a recent study of 84 eighth graders, the m… read more
Stevewh
Teacher
Bachelor's Degree
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1. The diameter of ball bearings produced in a manufacturing
1. The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 6.8 to 8.5 millimeters. The probability that a randomly selected ba… read more
Stevewh
Teacher
Bachelor's Degree
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A sample of 162 batteries for a hand-held calculator has a
A sample of 162 batteries for a hand-held calculator has a sample mean life of 41.0 hours and a sample standard deviation of 6.80 hours. Find the lower limit of a 98%confidence interval estimate of th… read more
abozer
Bachelor's Degree
6,158 satisfied customers
1) A mchine cuts plastic into sheets that are 30 feet 9360
1) A mchine cuts plastic into sheets that are 30 feet 9360 inches) long. Assume that the population of lengths is normally distributed. The company wants to estimate the mean lenth the machine is cutt… read more
Osbert12
Master's Degree
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Identify each discrete out come from your statistical analysis,
Identify each discrete out come from your statistical analysis, providing ratinale for each. Catholic Health Care West (CHW) is a large Healthcare employer in California, Arizona and Nevada. CHW is co… read more
R.R. Jha
Bachelor's Degree
Bachelor's Degree
7,136 satisfied customers
Consider the following random sample of diameter measurements
A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the mean distance driven monthly per sales person. The following table gives the monthly dist… read more
muvee
Master's Degree
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