Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. These data are contained in the
WEBfile named Houston. Based upon past studies the population standard deviation is known with = $6.Click on the webfile logo to reference the data.Round your answers to two decimal places.a. At 99% confidence, what is the margin of error?b. Develop a 99% confidence interval estimate of the mean amount spent for lunch.____ to ____Amount20.5014.6323.7729.9629.4932.709.2020.8928.8715.7818.1612.1611.2216.4317.669.5918.8919.8823.1120.1120.3420.0830.3621.7921.1819.2234.1327.4936.5518.3732.2712.6325.5327.7133.8121.7919.1626.3520.0126.8513.6317.2213.1720.1222.1122.4720.3635.4711.8517.886.8330.9914.6218.3826.8525.1027.5525.8714.3715.6126.4624.2416.6620.85
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By definition we have to:
The percentage is a mathematical symbol, which represents a given quantity as a fraction in 100 equal parts. It is also commonly called percent where percent means "out of every hundred units."
We have then that using the definition we can apply the following formula to obtain a fraction or a decimal:
Where,
A: amount in percentage
Answer:
you can write fraction and decimals equivalents using the expression:
The percentage is a mathematical symbol, which represents a given quantity as a fraction in 100 equal parts. It is also commonly called percent where percent means "out of every hundred units."
We have then that using the definition we can apply the following formula to obtain a fraction or a decimal:
Where,
A: amount in percentage
Answer:
you can write fraction and decimals equivalents using the expression:
