Homework Answers
We know that null hypothesis is claim stated . And always
contain equality(
)
.
Alternative hypothesis is opposite to null hypothesis
According to given statement last option is correct.
Last last option is correct.
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Determine the null hypothesis Ho and the alternative hypothesis Hy for the following case study: The...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. A manual states that in order to be a hit, a song must be no longer than three minutes and thirty seconds (or 210 seconds). A simple random sample of 50 current hit songs results in a mean length of 252.5 sec. Assume the population standard deviation of song lengths is 53.5 sec....
For each of the following situations, write the alternative hypothesis. (a) The null hypothesis is Ho:...
For each of the following situations, write the alternative hypothesis. (a) The null hypothesis is Ho: p = .40, and it is a two-sided hypothesis test. Hg: P ? » (b) The null hypothesis is Ho:p 3.55. H:P ? (c) The null hypothesis is Ho:p 2.45. Ha:p ?
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test...
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tailed, left-tailed, or right-tailed. The mean length of imprisonment for motor-vehicle theft offenders in this country is 23.2 months. A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 23.2 months. Choose the correct null and alternative hypotheses below. O A. Ho:p> 23.2 months Hu=...
Examine the given statement, then express the null hypothesis Ho and the alternative hypothesis Hy in...
Examine the given statement, then express the null hypothesis Ho and the alternative hypothesis Hy in symbolic form. High school teachers have incomes with a standard deviation that is more than $18,000. Which of the following is the hypothesis test to be conducted? O A. Ho: 0# $18,000 H: 0 = $18,000 0 C. Hg: 0$18,000 Hy: 0 = $18,000 O E. Ho: o > $18,000 Hy: 0 = $18,000 OB. Ho: 6 = $18,000 H: 0< $18,000 OD. Ho:...
For the statement below, write the claim as a mathematical statement. State the null and alternative...
For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. According to a recent survey, 27% of college students used their own income or savings to pay for college Write the claim as a mathematical statement. O A. p<0.27 OD. p#0.27 O B. p>0.27 O E. P50.27 OC. P20.27 ON p=0.27 Choose the correct null and alternative hypotheses below. O A. Ho: P = 0.27 Ha: P+0.27...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2119 passenger cars in a particular region, 247 had only rear license plates. Among 308 commercial trucks, 44 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars....
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...
Identify the null hypothesis,
alternative hypothesis, test statistic, P-value, conclusion about
the null hypothesis, and final conclusion that addresses the
original claim. Use the P-value method. Use the normal
distribution as an approximation of the binomial distribution.
7. In a recent poll of 745 randomly selected adults, 585 said that it is morally wrong to not report all income on tax returns. Use a 0.01 significance level report all income on tax returns. Identify the null hypothesis, altemative hypothesis, test...
In a study of 420,127 cell phone users, 136 subjects developed cancer of the brain or...
In a study of 420,127 cell phone users, 136 subjects developed cancer of the brain or nervous system. Test the claim of a somewhat common belief that such cancers are affected by cell phone use. That is, test the claim that cell phone users develop cancer of the brain or nervous system at a rate that is different from the rate of 0.0340% for people who do not use cell phones. Because this issue has such great importance, use a...
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. A test of sobriety involves measuring the subject's motor skills. A study of n = 20 randomly selected sober subjects take the test and produce a mean score of X = 41.0, and we know that o = 3.7. At the 0.01 level of significance, test the claim that the true mean score for all sober subjects is...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 407 babies were born, and 216 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be conducted? O A. Ho:...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. A manual states that in order to be a hit, a song must be no longer than three minutes and thirty seconds (or 210 seconds). A simple random sample of 50 current hit songs results in a mean length of 252.5 sec. Assume the population standard deviation of song lengths is 53.5 sec....
For each of the following situations, write the alternative hypothesis. (a) The null hypothesis is Ho: p = .40, and it is a two-sided hypothesis test. Hg: P ? » (b) The null hypothesis is Ho:p 3.55. H:P ? (c) The null hypothesis is Ho:p 2.45. Ha:p ?
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tailed, left-tailed, or right-tailed. The mean length of imprisonment for motor-vehicle theft offenders in this country is 23.2 months. A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 23.2 months. Choose the correct null and alternative hypotheses below. O A. Ho:p> 23.2 months Hu=...
Examine the given statement, then express the null hypothesis Ho and the alternative hypothesis Hy in symbolic form. High school teachers have incomes with a standard deviation that is more than $18,000. Which of the following is the hypothesis test to be conducted? O A. Ho: 0# $18,000 H: 0 = $18,000 0 C. Hg: 0$18,000 Hy: 0 = $18,000 O E. Ho: o > $18,000 Hy: 0 = $18,000 OB. Ho: 6 = $18,000 H: 0< $18,000 OD. Ho:...
For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. According to a recent survey, 27% of college students used their own income or savings to pay for college Write the claim as a mathematical statement. O A. p<0.27 OD. p#0.27 O B. p>0.27 O E. P50.27 OC. P20.27 ON p=0.27 Choose the correct null and alternative hypotheses below. O A. Ho: P = 0.27 Ha: P+0.27...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2119 passenger cars in a particular region, 247 had only rear license plates. Among 308 commercial trucks, 44 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars....
Identify the null hypothesis,
alternative hypothesis, test statistic, P-value, conclusion about
the null hypothesis, and final conclusion that addresses the
original claim. Use the P-value method. Use the normal
distribution as an approximation of the binomial distribution.
7. In a recent poll of 745 randomly selected adults, 585 said that it is morally wrong to not report all income on tax returns. Use a 0.01 significance level report all income on tax returns. Identify the null hypothesis, altemative hypothesis, test...
In a study of 420,127 cell phone users, 136 subjects developed cancer of the brain or nervous system. Test the claim of a somewhat common belief that such cancers are affected by cell phone use. That is, test the claim that cell phone users develop cancer of the brain or nervous system at a rate that is different from the rate of 0.0340% for people who do not use cell phones. Because this issue has such great importance, use a...
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. A test of sobriety involves measuring the subject's motor skills. A study of n = 20 randomly selected sober subjects take the test and produce a mean score of X = 41.0, and we know that o = 3.7. At the 0.01 level of significance, test the claim that the true mean score for all sober subjects is...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 407 babies were born, and 216 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be conducted? O A. Ho:...
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