Answer Happy

1. The claim is that for a smartphone​ carrier's data
speeds at​ airports, the mean is μ=16.00 Mbps. The sample size
is n=19 and the test statistic is t=−2.185.
P-value = ____
2. Listed below are the lead concentrations in μ​g/g measured in
different traditional medicines. Use a 0.01 significance level to
test the claim that the mean lead concentration for all such
medicines is less than 16 μ​g/g. Assume that the sample is a simple
random sample.
9.5 19 9.5 22.5 16.5 4.5 8 18 8.5 17
Determine the test statistic _____
Determine the P-value _______
3. A group of students estimated the length of one minute
without reference to a watch or​ clock, and the
times​ (seconds) are listed below. Use a 0.10 significance
level to test the claim that these times are from a population with
a mean equal to 60 seconds. Does it appear that students are
reasonably good at estimating one​ minute?
79 91 50 74 54 36 68 69 77 55 73 82 101 101 75
Determine the test statistic _____
Determine the P-value _______