If [0.64, 0.82] is a confidence interval for the population proporlion. Find the value of the point estimator of the population proportion. Select one: O a. 0.73 O b. 0.70 O c. 0.74 O d. 0.72

Construct the indicated confidence interval for the population mean using the t-distribution. Assume the population is normally distributed.  c=0.95, x=12.9, s=4.0 n=5

A random sample of 93 observations produced a mean x = 25.5 and a standard deviation s 2.8. a. Find a 95% confidence interval for u. b. Find a 90% confidence interval for u. c. Find a 99% confidence interval for u.

Construct the indicated confidence interval for the population mean using the t- distribution. Assume the population is normally distributed. C=0.90, x=13.7, s= 4.0, n=7

Construct the indicated confidence interval for the population mean μ using the​ t-distribution. Assume the population is normally distributed.   c=0.90​, x=14.8​, s=0.83​, n=15

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 ?

Construct the confidence interval for the population mean μ.   c=0.95​, x=7.3​, σ=0.6​, and n=51 A 95​% confidence interval for μ is ,. ​(Round to two decimal places as​ needed.)

Match the confidence level with the confidence interval for the population mean. Type the correct letter in each box. 1.± 1.645 2.1.282 √n 3.7±1.96) ( A. 95% B. 80% C. 90%

B. The test​ statistic, t, =____   C. The​ P-value is ____ D. State the conclusion for the test. Reject H0. or Fail to reject H0.   E. Construct a confidence interval suitable for testing the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. ___<μ1−μ2<___   F. Does the confidence interval support the conclusion of the​ test? (Yes/ No) because the confidence interval contains (zero/ only positive value/ only negative values).

How many students must be randomly selected to estimate the mean monthly income of students at a university? Suppose we want 95% confidence that x is within $129 of µ, and the o is known to be $540. O A. 129 B. 8 C. 0 D. 540 O E. 117 F. 48 G. 67 OH. none of the other answers