In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of dif. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. Is fishing better from a boat or from the shore? Pyramid Lake is located on the Paiute Indian Reservation in Nevada. Presidents, movie stars, and people who just want to catch fish go to Pyramid Lake for really large cutthroat trout. Let row B represent hours per fish caught fishing from the shore, and let row A represent hours per fish c using a boat. The following data are paired by month from October through April. Oct Nov Dec Jan Feb March April 8: Shore 1.5 1.7 2.1 3.2 3.9 3.6 3.3 A: Boat 1.3 1.4 1.7 2.2 3.3 3.0 LAUSE SALT Use a 1% level of significance to test if there is a difference in the population mean hours per fish caught using a boat compared with fishing from the shore. (Let dB-A.) (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? Ho! Hy 01 M₂² H0: two-tailed Hoi Hy 01 H₂ Hg < 0; left-tailed Hoi Hy 01 M₂! Hy > Os right-tailed Hoi Hy 01 H₂! Hy0: two-tailed (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that d has an approximately normal distribution. O The standard normal. We assume that d has an approximately normal distribution. O The Student's t. We assume that d has an approximately uniform distribution. O The standard normal. We assume that d has an approximately uniform distribution. What is the value of the sample test statistic? (Round your answer to three decimal places.) (c) Find (or estimate) the P-value. OP-value> 0.500 O 0.250 < P-value < 0.500 O 0.100 < P-value < 0.250 09.050 s P-value 0.100
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of dif. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. Is fishing better from a boat or from the shore? Pyramid Lake is located on the Paiute Indian Reservation in Nevada. Presidents, movie stars, and people who just want to catch fish go to Pyramid Lake for really large cutthroat trout. Let row B represent hours per fish caught fishing from the shore, and let row A represent hours per fish c using a boat. The following data are paired by month from October through April. Oct Nov Dec Jan Feb March April 8: Shore 1.5 1.7 2.1 3.2 3.9 3.6 3.3 A: Boat 1.3 1.4 1.7 2.2 3.3 3.0 LAUSE SALT Use a 1% level of significance to test if there is a difference in the population mean hours per fish caught using a boat compared with fishing from the shore. (Let dB-A.) (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? Ho! Hy 01 M₂² H0: two-tailed Hoi Hy 01 H₂ Hg < 0; left-tailed Hoi Hy 01 M₂! Hy > Os right-tailed Hoi Hy 01 H₂! Hy0: two-tailed (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that d has an approximately normal distribution. O The standard normal. We assume that d has an approximately normal distribution. O The Student's t. We assume that d has an approximately uniform distribution. O The standard normal. We assume that d has an approximately uniform distribution. What is the value of the sample test statistic? (Round your answer to three decimal places.) (c) Find (or estimate) the P-value. OP-value> 0.500 O 0.250 < P-value < 0.500 O 0.100 < P-value < 0.250 09.050 s P-value 0.100
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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