The average spent nationally on Christmas gifts in 2020 was reported to be $650 per person. Below is a random sample of gift givers from Iowa and what they spent in 2020.

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The national center for educational statistics reported that in 2008-2009, 178,564 master's degrees in education were awarded in the United States, and that this represented 27% of all master's degrees awarded. How many master's degrees were awarded in 2008-2009?

A statistical program is recommended. Is the number of square feet of living space a good predictor of a house's selling price? The following data show the square footage and selling price for fifteen houses in Winston-Salem, North Carolina.† Size(1,000s sq. ft) Selling Price($1,000s) 1.26 117.5 3.02 299.9 1.99 139.0 0.91 45.6 1.87 129.9 2.63 274.9 2.60 259.9 2.27 177.0 2.30 175.0 2.08 189.9 1.12 95.0 1.38 82.1 1.80 169.0 1.57 96.5 1.45 114.9 Find the value of the test statistic. (Round your answer to two decimal places.) ______________________. (d)Use the estimated regression equation to predict the selling price (in $1,000s) of a 2,100 square foot house in Winston-Salem, North Carolina. (Round your answer to one decimal place.) $_____ thousand

How many observations are in the data set? How do I calculate this in the "R" program?

Past records suggest that the mean annual income,  μ1 , of teachers in state of Utah is greater than or equal to the mean annual income,  μ2 , of teachers in Oregon. In a current study, a random sample of  15  teachers from Utah and an independent random sample of  15  teachers from Oregon have been asked to report their mean annual income.The data obtained are as follows.   Annual income in dollars Utah 40375, 40119, 38197, 31687, 33695, 32737, 31677, 34683, 29973, 27954, 30679, 23613, 30854, 39423, 43263 Oregon 29526, 39202, 41422, 42190, 33702, 43330, 37084, 35078, 50852, 45628, 43294, 28607, 39779, 42331, 40648 The population standard deviation for mean annual income of teachers in Utah and in Oregon are estimated as  6400  and  6500 , respectively. It is also known that both populations are approximately normally distributed. At the  0.05  level of significance, is there sufficient evidence to reject the claim that the mean annual…

A survey was conducted on unauthorized use of computer systems. One of the survey questions asked respondents to indicate the percentage of monetary losses attributable to malicious actions by individuals within the organization. The histogram below summarizes the data for the 121 firms who experienced some monetary loss due to malicious insider actions. a. Which measurement class contains the highest proportion of respondents? Answer 5 Question 1 b. What is the approximate proportion of the 121 organizations that reported a monetary loss (%) from malicious inside actions less than 20%? Answer 6 Question 1 c. What is the approximate proportion of the 121 organizations that reported a percentage monetary loss from malicious inside actions greater than 60%? Answer 7 Question 1

72% of Americans said that they plan to travel in 2021, and 9% of those who plan to travelintend to take an international trip. What percentage of Americans plan to take aninternational trip in 2021?

There are 435 seats in a​ nation's House of Representatives. The number of representatives per state is calculated using a statistical formula determined by​ law, but allocation is roughly proportionate to population. In​ 2010, the​ nation's population was estimated to be 309.1 million. The​ state's population was estimated at 26.1 million. How many representatives would you expect to be assigned to the​ state? Suppose the state actually has 34 representatives. Compare this with the expected number of representatives from the state.