Mathematics, 27.02.2020 05:29, bartonamber4042
6. You are constructing a 90% confidence interval for a sample consisting of n = 9 values and an
unknown population standard deviation. The population appears to be very skewed. Determine
whether a margin of error should be calculated using a critical value of za/2, a critical value of ta/2, or neither.
a) a critical value of za/2
b) a critical value of ta/2
c) neither
7. The standard deviation of sample size of n = 15 is 345 and the mean is 6784. Given that the population follows a normal distribution, construct a 90% confidence interval estimate of the mean of the population.
a) 6519
b) 6593
c) 6627
d)6783
Answers: 1
Mathematics, 21.06.2019 20:30, erikloza12pdidtx
Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.
Answers: 1
Mathematics, 22.06.2019 01:10, ahankaranth
"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?
Answers: 2
6. You are constructing a 90% confidence interval for a sample consisting of n = 9 values and an
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