| A 95% confidence interval for p is (9.10.9.30). |
c = 0.95. x = 9.2. a = 0.4. and n = 59
Construct the confidence interval for the population mean u.
feel free to call us +800.241.0630 russ@russellcoder.com
Related Articles
-
In a survey of 641 males ages 18-64, 394 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. The 90% confidence interval for the population proportion p is The 95% confidence interval for the population proportion p is Interpret your results of both confidence intervals. Which interval is wider?
russellc, , Statistics, 0 -
A credit card company claims that the mean credit card debt for individuals is greater than $ 5000. You want to test this claim. You find that a random sample of 30 cardholders has a mean credit card balance of $ 5202 and a standard deviation of $ 600. At alpha equals 0.01, can you support the claim? Complete parts (a) through (e) below. Assume the population is normally distributed.
russellc, , Statistics, 0
see excel spreadsheet. This your answer
-
Use the given statement to represent a claim. Write its complement and state which is Upper H 0 and which is Ha. a is not equal to 14
russellc, , Statistics, 0
Part A is the answer. A. Pick the opposite of the "equation" see excel spreadsheet. This your answer B....
-
Find the margin of error for the given values of c, sigma, and n.
russellc, , Statistics, 0
c = 0.95. a = 2.1, n = 36 Answer 0.686
-
A soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.05 in. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.20 in. (b) Repeat part (a) using a population standard deviation of 0.40 in. Which standard deviation requires a larger sample size? Explain.
russellc, , Statistics, 0 -
For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is more than 5 hours
russellc, , Statistics, 0
Part A is just stating the the claim numberically with is u >5. Part B = Ho is the...
-
Use the given statement to represent a claim. Write its complement and state which is Upper H 0 and which is Ha. u<431
russellc, , Statistics, 0
Find the complement of the claim. A. Pick the opposite of the "greater that or less than sign"of the...
-
Construct the confidence interval for the population mean u.
russellc, , Statistics, 0
c = 0.95. x = 9.2. a = 0.4. and n = 59 A 95% confidence interval for p...