MathMaster logo

MathMaster

  1. Home
  2. general
  3. if a sample size n 49 is used to construct a confidence interval for a population mean and is determined that the critical
Question

If a sample size n=49 is used to construct a confidence interval for a population mean, and is determined that the critical value should come from a t-distribution, what number of degrees of freedom should be used for that distribution?

200

likes
999 views

Answer to a math question If a sample size n=49 is used to construct a confidence interval for a population mean, and is determined that the critical value should come from a t-distribution, what number of degrees of freedom should be used for that distribution?

Expert avatar
Rasheed
4.7
110 Answers
when constructing a confidence interval for a population mean with a sample size of 49, the number of degrees of freedom for the t-distribution is 48.

Frequently asked questions (FAQs)
Question: "Graph the function y = 2^x on a coordinate plane. Identify the coordinates of the point where the graph intersects the x-axis.
+
What is the area of a triangle with side lengths 5, 12, and 13, using Heron's Formula?
+
Question: What is the formula to find the area of a rectangle, given the length (l) and width (w)?
+
New questions in Mathematics
2x-y=5 x-y=4
3(4×-1)-2(×+3)=7(×-1)+2
If f(x) = 3x 2, what is the value of x so that f(x) = 11?
what is the annual rate on ​$525 at 0.046​% per day for 3 months?
9b^2-6b-5
2.3/-71.32
A construction company is working on two projects: house construction and building construction. Each house requires 4 weeks of work and produces a profit of $50,000. Each building requires 8 weeks of work and produces a profit of $100,000. The company has a total of 24 work weeks available. Furthermore, it is known that at least 2 houses and at least 1 building must be built to meet the demand. The company wants to maximize its profits and needs to determine how many houses and buildings it should build to meet demand and maximize profits, given time and demand constraints.
According to a survey in a country 27% of adults do not own a credit card suppose a simple random sample of 800 adults is obtained . Describe the sampling distribution of P hat , the sample proportion of adults who do not own a credit card
solve for x 50x+ 120 (176-x)= 17340
The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of $4.59 and a standard deviation of $0.10. Sixteen gas stations from the Bay Area are randomly chosen. We are interested in the average cost of gasoline for the 16 gas stations. 84. Find the probability that the average price for 30 gas stations is less than $4.55. a 0.6554 b 0.3446 c 0.0142 d 0.9858 e 0
In the telephone exchange of a certain university, calls come in at a rate of 5 every 2 minutes. Assuming a Poisson distribution, the average number of calls per second is: a) 1/8 b) 1/12 c) 1/10 d) 2/5 e) 1/24
A circular window has a rubber molding around the edge. If the window has a radius of 250 mm, how long is the piece of molding that is required ? (To the nearest mm)
0.1x8.2
If the regression equation is given by 4x –y + 5 = 0, then the slope of regression line of y on x is
Determine a general formula​ (or formulas) for the solution to the following equation.​ Then, determine the specific solutions​ (if any) on the interval [0,2π). cos30=0
Determine the Linear function whose graph passes through the points (6, -2) and has slope 3.
5a-3.(a-7)=-3
2p-6=8+5(p+9)
Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 includes wide. How much ribbon does Mark need?
x(squared) -8x=0

You might be interested in