I am trying to find the CI for 95%.
PROBLEM A: BAR OVER X=51.5, T=1.96,S=6.8, N=100
PROBLEM B: BAR OVER X=145,T=1.96, S=16.05,N=100
PROBLEM C : BAR OVER X = 15, T=1.96, 5.099, N=100
What is the C.I. for each of these?
I am trying to find the CI for 95%. PROBLEM A: BAR OVER X=51.5, T=1.96,S=6.8, N=100...
Calculations: sales(y) calls(x1 time (x2) years (x3) Min 40 69 28.113208 1 Q1 45 87.5 33.756166 2 Median 51.5 105.5 36.858333 4 Q3 58 118.25 41.440757 5 Max 60 137 49.538462 6 D) Mean time per call is greater than 15 minutes Ho=15 Ha>15 Bar x =15,t=1.96,s=5.099,n=100 15(+/-)(1.96)(5.099/sq.rt.100)=0.994 C.I.=(14,16) 37.6=mean 5.099=standard deviation so t=37.6-15/5.099/10=43.10 t value =43.10 Tdist(43,15.99,1= 2.6312e-66 (really small ) thus we would reject null. (this is less than .05 so I reject null.) F-test=196
If X (bar over) = 65, S = 14, n = 49, and assuming that the population is normally distributed construct a 95% confidence interval estimate of the population mean. ( I have the table of critical values for the t distribution but I do understand how to find the solution and plug it in to the formula. Please show all steps and explain how to find it.)
Question 15 if c = .95, Z sub c = 1.96, Sigma = S = 5.0, and E = 1, what would be the best choice for the sample size? Not yet answered Marked out of 3.00 P Flag question Select one: o a. 96.00 b. 96 O c. 96.04 O d. 97 e. 100 Question 16 Find the margin of error for mu, if X-bar = 52.8, n = 16, S = 23.4 and C = 90. Not yet...
question 1:
8. Assume that the distribution of the sample in Problem 1 s N(μ, σ2). Find a 95% CI for σ2 1. The test scores in a class are 67, 83, 71, 103, 76, 95, 20, 96, 124, 79, 98, 115, 108, 113, 86, 113, 106, 83, 71, Give a 95% CI for the first quartile π1/4.
8. Assume that the distribution of the sample in Problem 1 s N(μ, σ2). Find a 95% CI for σ2
1. The...
Provide an appropriate response. 7) Find the standardized test statistic t for a sample with n = 15, x = 6.8, s = 0.8, and α = 0.05 if H0: μ ≤ 6.5. Round your answer to three decimal places. (7.3) A) t = 1.631 B) t = 1.312 C) t = 1.728 D) t = 1.452
I am stuck on this spec problem. I'm trying to find the
molecular formula and structure
propusly 5c mmt=118 (100%) even or zero N mt =119 (5.7%) 5.7/10 -5.2 M+2 = 120 (63 ) ► Example Problem #2 No Sici, Br Mass Spectrometry Data Met m/z= 118 (M; 100%), m/z = 119 (5.7%), m/2 = 120 (0.63 %) Molecule does NOT contain any fluorine or iodine atoms. It (5 IR Spectrum 12*5be 7118-60- 58 for H, out ONIH Ferrin T/2/14...
Please solve I am trying to see
what mistakes I made when solving.
Problem 9 (35 pts): The composite bar is attached to rigid supports,. Compute the stress in each material caušed by the application of the axial load P 50 kips. Express the answer to 3 significánt figures fru Steel A = 2.0 in2 Aluminum A = 1.25 in2 E = 29 x 106 psi een- 41 E = 10 x 106 psi AL 15 in
1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level. Give your answer to two decimal places. 2. In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $8. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. 3. If n=20, (x-bar)=50, and s=20, construct...
If X-bar= 95, S = 22, and n = 64, and assuming that the population is normally distributed: a. Construct a 99% confidence interval for the population mean, μ. b. Based on your answer to part (a), test the null hypothesis that the population mean μ = 101 vs. the alternative that μ ≠ 101. c. What is the probability that μ = 101? d. What is the probability that μ > 101?
Hello, I am having trouble with a problem in my C language class. I am trying to make a program with the following requirements: 1. Use #define to define MAX_SIZE1 as 20, and MAX_SIZE2 as 10 2. Use typedef to define the following struct type: struct { char name[MAX_SIZE1]; int scores[MAX_SIZE2]; } 3. The program accepts from the command line an integer n (<= 30) as the number of students in the class. You may assume that the...