A random sample of 161 recent donations at a certain blood bank reveals that 88 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. A USE SALT State the appropriate null and alternative hypotheses. O Ho: p = 0.40 H: p< 0.40 O Ho: p = 0.40 H:p> 0.40 O Ho: p = 0.40 H: p = 0.40 O Ho: p + 0.40 H: p = 0.40 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value =
A random sample of 161 recent donations at a certain blood bank reveals that 88 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. A USE SALT State the appropriate null and alternative hypotheses. O Ho: p = 0.40 H: p< 0.40 O Ho: p = 0.40 H:p> 0.40 O Ho: p = 0.40 H: p = 0.40 O Ho: p + 0.40 H: p = 0.40 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value =
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:A random sample of 161 recent donations at a certain blood bank reveals that 88 were type A blood. Does this suggest that the actual percentage of type A donations differs
from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01.
A USE SALT
State the appropriate null and alternative hypotheses.
O Ho: p = 0.40
H: p < 0.40
O H,: p = 0.40
Hip> 0.40
O Ho: p = 0.40
H: p + 0.40
O Ho: p + 0.40
H:p = 0.40
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.)
z =
P-value =
Transcribed Image Text:O Ho: p 0.40
Hip = 0.40
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.)
Z =
P-value =
State the conclusion in the problem context.
O Do not reject the null hypothesis. There is sufficient evidence to conclude that the percentage of type A donations differs from 40%.
O Do not reject the null hypothesis. There is not sufficient evidence to conclude that the percentage of type A donations differs from 40%.
O Reject the null hypothesis. There is not sufficient evidence to conclude that the percentage of type A donations differs from 40%.
O Reject the null hypothesis. There is sufficient evidence to conclude that the percentage of type A donations differs from 40%.
Would your conclusion have been different if a significance level of 0.05 had been used?
O Yes
O No
You may need to use the appropriate table in the Annan
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