A researcher believes that among the residents of a remote community, 10% have type O blood, 10% have type A blood, 30% have type B blood and 50% have type AB blood. She takes a random sample of 145 residents and finds that 32 had type O blood, 20 had type A blood, 45 had type B blood and 48 had type AB blood. = Do the data follow the hypothesized distribution of blood type for this community? Test at a your answers to three decimal places, if necessary. Null hypothesis: X O Ho: Po Ho: Po = 32 145 O Ho: Po = 1 32 " PA = , PA = 20 145 1 20 Alternative hypothesis: 1 Ho: Po PA PB = PAB = = = 4 PB = PB = PA PB = PAB = 20 145 1 4 45 145 1 45 0.1, PA = 0.1, PB = 0.3, PAB = 0.5 , PA # ,PB # PAB PAB = Ha: Po Ha: Po 0.1, PA ‡ 0.1, PB ‡ 0.3, PAB # 0.5 32 Ha: Po 145 At least one of the proportions is different. = 45 145 1 48 PAB # 48 145 48 145 .01. Round
A researcher believes that among the residents of a remote community, 10% have type O blood, 10% have type A blood, 30% have type B blood and 50% have type AB blood. She takes a random sample of 145 residents and finds that 32 had type O blood, 20 had type A blood, 45 had type B blood and 48 had type AB blood. = Do the data follow the hypothesized distribution of blood type for this community? Test at a your answers to three decimal places, if necessary. Null hypothesis: X O Ho: Po Ho: Po = 32 145 O Ho: Po = 1 32 " PA = , PA = 20 145 1 20 Alternative hypothesis: 1 Ho: Po PA PB = PAB = = = 4 PB = PB = PA PB = PAB = 20 145 1 4 45 145 1 45 0.1, PA = 0.1, PB = 0.3, PAB = 0.5 , PA # ,PB # PAB PAB = Ha: Po Ha: Po 0.1, PA ‡ 0.1, PB ‡ 0.3, PAB # 0.5 32 Ha: Po 145 At least one of the proportions is different. = 45 145 1 48 PAB # 48 145 48 145 .01. Round
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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