Basic Math question and answers for August 30, 2024
- Q Joan's finishing time for the Bolder Boulder 10K race was 1.85 standard deviations faster than the women's average for her age group. There were 380 women who ran in her...
- Q The following data give the ages (in years) of all six members of a family.56 51 30 26 21 12Calculate to 2 decimal places the mean for the population data.Calculate...
- Q IQ scores have a mean of 100 and a standard deviation of 16. Albert Einsteinreportedly had an IQ of 160.a. What is the difference between Einsteins IQ and the mean?b....
- Q Earlier this week the famous "Live Cannonball" - Gunter Money was shotfrom a cannon at the Austin Expo. Gunter flew to a height of 70 feet andtraveled a distance of...
- Q A political scientist surveys 28 of the current 119 representatives in a state's legislature.What is the size of the sample:What is the size of the population:
- Q For the above data set, find the mean, median, midrange, and mode. Round to one decimal place, if necessary.Part: 0/4Part 1 of 4(a) Find the mean.The mean is single...
- Q Cigarette Smoking A researcher found that a cigarette smoker smokes on average 32cigarettes a day. She feels that this average is too high. She selected a random sample of9 smokers...
- Q Men's Heights. The distribution of heights of adult American men is approximately Normal with mean 69 inches and standard deviation 2.5 inches. Use the Empirical Rule to answer the following...
- Q Suppose a man took out a 30-year loan with an annual rate of 6% to put an addition on his house. His banker encouraged him to put other expenses into...
- Q The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1400 hours and a standard deviation of 50 hours. Using the empirical...
- Q New-Homes Prices If the average price of a new one-family home is $246,300 with a standard deviation of $15,000, find the minimum and maximum prices of the houses that a...
- Q A formal hypothesis test is to be conducted to test the claim that the wait times at the Space Mountain ride in Walt Disney World have a mean equal to...
- Q Police Academy Acceptance Exams To qualify for a police academy, applicants are given a test of physical fitness. The scores are normally distributed with a mean of 70 and a...
- Q 8. Students whose test score is within 12 points of the number 87 will earn free tuition to a generous University. First, re-write this statement in plain English using mathematical...
- Q Using a random sample of 1396 TV households, Acme Media Statistics found that 36.2% watched the final episode of "I Can't Take it Anymore!"a. Find the margin of error in...
- Q A student was asked to find a 95% confidence interval for widget width using data from a random sample of size n = 20. Which of the following is a...
- Q In an all boys school, the heights of the student body are normally distributed with a mean of 67 inches and a standard deviation of 4.5 inches. Using the empirical...
- Q Determine whether the value 95% is a parameter or statistic:95% of College A's students are womenO StatisticParameter
- Q Using a random sample of 998 TV households, Acme Media Statistics found that 37.7% watched the final episode of "When Will it End?"a. Find the margin of error in this...
- Q The distribution of heights of adult men is approximately normal with a mean of 69 inches and a standard deviation of 2 inches.Bob's height has a Z-score of -0.5 when...
- Q A patient recently diagnosed with Alzheimer's disease takes a cognitive abilities test and scores a 45. The mean on this test is 52 and the standard deviation is 5. What...
- Q At a large high school, students took a series of advanced tests. Each test covered a different subject area, had a different number of items, and a different mean and...
- Q When Serenity commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 39 minutes and a standard deviation of 5 minutes....
- Q Rhonda started a business. Her business made $30,000 in profits the first year. Her annual profits have increased by an average of 5% each year since then.(a) Write an iterative...
- Q An airline sells all tickets for a certain route at the same price. If it charges 250 dollars per ticket, it sells 5000 tickets. For every 5 dollars the ticket...
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