Thirty-four small communities in Connecticut (population near 10,000 cach) gave an average of x- 137.4 reported cases of larceny per year. Assume that is known to be 44.9 cases per year. (a) Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of eror? (Round your answers to one decimal place.) lower limit pper imt margin of errr (b) Find a 95% confidence interval for the population mean annual number of reported larceny cases in such acommunities. What is the margin of eror? (Round your answers to one decimal place.) lower limit pper limit margin of error (C) Find a 99 confidence interval for the population mean annusl number of reported larceny cases in such communities. What is the margin of eror? (Round your answers to one decimal place.) lower limit pper limit margin of error
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
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Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Please help me answer A, B and C.
![### Confidence Interval Calculation for Larceny Cases
In a study of thirty-four small communities in Connecticut (each with a population near 10,000), an average of \( \overline{x} = 137.4 \) reported cases of larceny per year was observed. It is assumed that the standard deviation \( \sigma \) is known to be 44.9 cases per year. Below are exercises to find confidence intervals for the population mean annual number of reported larceny cases.
#### (a) Calculate a 90% Confidence Interval
- **Lower limit:** [Input Required]
- **Upper limit:** [Input Required]
- **Margin of error:** [Input Required]
#### (b) Calculate a 95% Confidence Interval
- **Lower limit:** [Input Required]
- **Upper limit:** [Input Required]
- **Margin of error:** [Input Required]
#### (c) Calculate a 99% Confidence Interval
- **Lower limit:** [Input Required]
- **Upper limit:** [Input Required]
- **Margin of error:** [Input Required]
### Instructions:
For each confidence interval, determine the margin of error and use it to calculate the lower and upper limits of the interval. Round your answers to one decimal place as requested.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F890db880-490b-4ebd-8134-9ade3709eb7e%2F982f2c14-96cd-4582-931e-9c672d2a90af%2Faawl6l_processed.png&w=3840&q=75)
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