1. Find the t-value that would be used to construct a 95% confidence interval with a sample size n = 18. A) 1.714 B) 2.

[answerhappygod]

1.
Find the t-value that would be used to construct a 95%confidence interval with a sample size n = 18.
A) 1.714
B) 2.110
C) 2.069
D) 1.740
2.
The amount of corn chips dispensed into a bag by the dispensingmachine has been identified as possessing a normal distributionwith a mean of μ=32.5 ounces and a standard deviation of σ=0.2ounce. What chip amount represents the 67th percentile,p67, for the bag weight distribution? Round to thenearest hundredth. Hint: the 67th percentile of the standard normalcurve is z=0.44. Round your answer to to decimal places.
A) 32.59 oz
B) 32.09 oz
C) 32.13 oz
D) 32.63 oz
3.
A population is approximately normal witha mean of anda standard deviation of .If samples of size n=49 are taken, determine the 90thpercentile of the sampling distribution of the samplemean. Hint: The 90th percentile of the standard normalcurve is z = 1.28
A) 111.80
B) 127.92
C) 112.56
D) 122.60
4.
Determine the critical values for a two-tailedtest (H1: μ ≠ μ0) of a population mean at the α = 0.05 levelof significance based on a sample size of n = 18.
A) ±1.734
B) ±2.110
C) ±2.101
D) ±1.740