1. Peter Dinklage a student of BUS 173, was not absent on 5 July. However. due to evidence of the contrary, I marked him absent in that particular class. Considering the 2 types of errors-I most likely made a a. Type i error as I did not reject a false null b. Type i error as I rejected a true null c. Type ii error as I did not reject a false null d. Type il error as I rejected a true null 2. In a two population hypothesis test where the population standard deviation is unknown and assumed to be unequal, the (independent) sample sizes are n1= 11 and n2= 14. The sample standard deviations are 10 and 8 respectively, the degrees of freedom is- a. 18.91 b. 19.00 c. 18.00 d. 23.00 3. A manufacturer advertises that the contents in their detergent box on average weigh at least 16 ounces. The standard deviation of the weight of all such boxes is 0.4 ounces. A random sample of 16 boxes yields a sample mean weight of 15.84 ounces. Testing at the 10% significance level whether this claim is false, we can conclude that- a. The t stat is -1.6 which falls in the rejection region hence we conclude that the claim is false. b. The z stat is -1.6 which falls in the non-rejection region hence we conclude that the claim is true. c. The z- stat is-1.6 which falls in the rejection region hence we conclude that the claim is false. d. We can not perform this test using the methods learned in class. 4. While using a Chi-Square distribution a. we always conduct a right-tailed test. b.we can obtain both positive and negative critical values. c. we find symmetric areas in both tails. d. we can conduct the hypotheses test if we have the area in the left tail
1. Peter Dinklage a student of BUS 173, was not absent on 5 July. However. due to evidence of the contrary, I marked him absent in that particular class. Considering the 2 types of errors-I most likely made a
a. Type i error as I did not reject a false null
b. Type i error as I rejected a true null
c. Type ii error as I did not reject a false null
d. Type il error as I rejected a true null
2. In a two population hypothesis test where the population standard deviation is unknown and assumed to be unequal, the (independent) sample sizes are n1= 11 and n2= 14. The sample standard deviations are 10 and 8 respectively, the degrees of freedom is-
a. 18.91
b. 19.00
c. 18.00
d. 23.00
3. A manufacturer advertises that the contents in their detergent box on average weigh at least 16 ounces. The standard deviation of the weight of all such boxes is 0.4 ounces. A random sample of 16 boxes yields a sample mean weight of 15.84 ounces. Testing at the 10% significance level whether this claim is false, we can conclude that-
a. The t stat is -1.6 which falls in the rejection region hence we conclude that the claim is false.
b. The z stat is -1.6 which falls in the non-rejection region hence we conclude that the claim is true.
c. The z- stat is-1.6 which falls in the rejection region hence we conclude that the claim is false.
d. We can not perform this test using the methods learned in class.
4. While using a Chi-Square distribution
a. we always conduct a right-tailed test.
b.we can obtain both positive and negative critical values.
c. we find symmetric areas in both tails.
d. we can conduct the hypotheses test if we have the area in the left tail.
Step by step
Solved in 2 steps
