Find the indicated margin of error. Out of 330 trials, 150 turned out positive. Find the margin of error for the 90% confidence interval used to estimate the population proportion. A. 0.0483 O B. 0.0451 O C. 0.0564 O D. 0.0537

Construct the confidence interval for the population mean μ.   c=0.98​, x=16.6​, σ=7.0​, and n= 70   A 98​% confidence interval for μ is ?

If the problem below is given: Suppose that a garage samples 20 customers. They find the average time for there oil change is 4521 miles and a standard deviation of 1234. Find a 90% confidence interval of the true mean. Which t value would you use?A.1.645B.1.734C.1.729D.1.725

you measure the weights of a random sample of twenty-five people. The sample mean is 60 kg. Suppose that the mean weights of people follow a normal distribution with an unknown mean and standard deviation of 5 kg. You compute a 95% confidence interval for μ. The 95% confidence interval for μ is?

Find the indicated margin of error.In a survey of 6700 T.V. viewers, 3350 said they watch network news programs. Find the margin of error for the 99% confidence interval used to estimate the population proportion.  a 0.0120  b 0.0158  c 0.0138  d 0.00900

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

In a survey, the planning value for the population proportion is p* 0.25. How large a sample should be taken to provide a 95% confidence interval with a margin of error of 0.02? Round your answer up to the next whole number. =

Use the given confidence interval to find the margin of error and the sample proportion.   ​(0.740​,0.766​)         E=enter your response here ​(Type an integer or a​ decimal.)

In a survey, 28 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $45 and standard deviation of $14. Construct a confidence interval at a 99% confidence level. Give your answers to one decimal place. ________+________

If n = 580 and X = 464, construct a 90% confidence interval for the population proportion, p.Give your answers to three decimals______< p < ______