Basic Math question and answers for September 01, 2024
- Q Justin is interested in buying a digital phone. He visited 10 stores at random and recorded the price of the particular phone he wants. The sample of prices had a...
- Q A 95% confidence interval is computed to estimate the mean household income for a city. Which of the following values will definitely be within the limits of this confidence interval?A....
- Q 31% of American adults surveyed stated that giving up their phone for a day would be more difficult than giving up their significant other. In 2012, the United States population...
- Q Find the principal P that will generate the given future value A, where A = $13,000 at 7% compounded annually for 11 years.The principal P will be approximately $ .......
- Q Carol purchased a diamond necklace for a total purchase price of $2,389.66. State taxes were 6.75%. Find the amount of the sales tax. (Round your answer to the nearest cent.)$143.38$151.10$161.30$171.88
- Q A student scores 56 on a geography test and 264 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 20. The mathematics...
- Q Make a decision about the given claim. Use only the rare event rule, and make subjective estimates to determine whether events are likely. For example, if the claim is that...
- Q A survey was conducted that asked 1009 people how many books they had read in the past year. Results indicated that x = 10.3 books and s= 16.6 books. Construct...
- Q You measure 21 textbooks' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 4 ounces. Based on this, construct a 90% confidence...
- Q A variable is normally distributed with mean 19 and standard deviation 6. Use your graphingcalculator to find each of the following areas. Write your answers in decimal form. Round to...
- Q A statistics professor conducted a taste test with five students. Students were randomly assigned to drink bottled water then tap water or tap water then bottled water. This was a...
- Q Two different samples will be taken from the same population of test scores where the population mean and standard deviation are unknown. The first sample will have 25 data values,...
- Q A newspaper article claims that the average age for people who receive food stamps is 40 years. You believe that theaverage age is less than that. You take a random...
- Q Suppose that a random sample of 41 state college students is asked to measure the length of their right foot in centimeters. A 95% confidence interval for the mean foot...
- Q Each of the 110 students in a statistics class selects a different random sample of 35 Quiz scores from a population of 5000 scores they are given. Using their data,...
- Q Justin and Hayley conducted a mission to a new planet, Planet X, to study arm length. They took a random sample of 100 Planet X residents and calculated a 95%...
- Q In a survey of 1389 adults from India, 668 say they are confident that the food they eat in their country is safe. Construct a 90% confidence interval for the...
- Q The Gallup poll (August 23, 2002) reported that 53% of Americans said they would favor sending American ground troops to the Persian Gulf area in an attempt to remove Hussein...
- Q Testing:H0: ? = 18.9H?: ?< 18.9Your sample consists of 27 subjects, with a mean of 18.4 and standard deviation of 1.54.Calculate the test statistic, rounded to 2 decimal places.
- Q It is reported that scores on a particular test of historical trivia given to high school students are approximately normallydistributed with a mean of 85. Mrs. Rose believes that her...
- Q Imagine you have a huge jar of candies that are a generic version of M&Ms. We know that 40% of the candies in the jarare brown. Imagine that you create...
- Q "Americans in this decade are less likely than in the prior decade to say they want to lose weight, with the average dropping from 59% in 2000-2009 to 53% in...
- Q In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and a standard...
- Q For a confidence level of 99% with a sample size of 12, find the critical t value.
- Q Same-sex marriage: In a recent ABC News/Washington Post poll, 1,016 adults nationwide answered thequestion, "Overall, do you support or oppose allowing gays and lesbians to marry legally?"Of the respondents, 619...
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