What percentage of computer programmer major received a starting offer between $32000 and $38000? (mean of $39,269) (standard deviation of $2550)

Define the term standard deviation?

Which data set would be likely to have the larger standard deviation? Explain. * * Data set 1: Weights of all dogs at a golden retriever rescue shelter * Data set 2: Weights of all dogs for sale in a pet shop.

What is the lowest standard deviation value ?

M1

LSAT test scores are normally distributed with a mean of 151 and a standard deviation of 5. What score would place you in the top 2% of test-takers? (Round your answer to the nearest whole number.)

National park services, a bureau of the US government responsible for park management, is interested in how the scores of their park rangers today are better or worse than in the past. The cognitive test that the forest rangers take as remained the same over the last five years. Below are the scores for each year, compute the mean, median, mode, range, and standard deviation for each year. ​       ​Current Year 56, 45, 64, 75, 87, 81, 69, 81, 58, 92, 99, 95, 75, 92, 73, 83, 47, 69, 57, 74, 62, 74, 73, 100, 83   Five Years Ago 66, 78, 75, 79, 59, 74, 55, 89, 55, 79, 68, 27, 69, 95, 68, 90, 65, 79, 69, 79, 87, 86, 98, 81, 96

The IRS claims it takes an average of 3.8 hours to complete a 1040 tax form. Assume the time to complete the form is normally distributed with a standard deviation of 45 minutes or 0.75 hours. Use the Cumulative Z-Score Table to answer the following questions. Write your answer as a percent using 2 decimal places. What percent of people would you expect to complete the form in less than 2.9 hours? % What percent of people would you expect to complete the form in more than 2.9 hours? What percent of people would you expect to complete the form in less than 4.775 hours? What percent of people would you expect to complete the form in more than 4.775 hours? % What percent of people would you expect to complete the form between 2.9 and 4.775 hours?

SAT tests have a mean of 500 and a standard deviation of 100. They are normally distributed. Amy got a 640. What percentile is she in?

The latest available data showed health care spending were $8086 per person in the United States (17.6% of GDP). Use $8086 as the population mean and $2500 as the population standard deviation. Suppose a survey firm will take a sample of 100 people to investigate their health care spending What is the sampling distribution of the mean amount of health care spending for the sample of 100 people? (i.e. shape, mean, sd) What is the probability the sample mean will be within +$200 of the population mean?