A researcher claims that 45% of students drop out of college. She conducts a hypothesis test...
A researcher claims that 45% of students drop out of college. She conducts a hypothesis test and rejects the null hypothesis. What type of error could have been committed here?
A.
Power of the test
B.
Type II
C.
There are never errors in hypothesis testing
D.
Type I
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A researcher claims that 45% of students drop out of college.
She conducts a hypothesis test...
if a hypothesis test leads to failing to reject the null hypothesis, a___ a) type II...
if a hypothesis test leads to failing to reject the null hypothesis, a___ a) type II error must have been committed b) type II error MAY have been committed c) type I error MAY have been commited
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample d...
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample data to reject it. True False 2. The first step in testing a hypothesis is to establish a true null hypothesis and a false alternative hypothesis. True False 6. The power curve provides the probability of Correctly accepting the null hypothesis Incorrectly accepting the null hypothesis Correctly rejecting the alternative hypothesis Correctly rejecting the null hypothesis 7. Suppose that Ho: μ ≤...
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is...
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is true, a. a Type II error has been committed b. a Type I error has been committed c. the correct decision has been made d. either a Type I or Type II error has been committed
A researcher claims that the proportion of college students who plan to participate in community service...
A researcher claims that the proportion of college students who plan to participate in community service after graduation is greater than 35%. To test this claim, a survey asked 500 randomly selected college students if they planned to perform community service after graduation. Of those students, 195 indicated they planned to perform community service. The following is the setup m the following hypothesis test: H0:p=0.35 Ha:p>0.35 In this example, the p-value was determined to be 0.030. Come to a conclusion...
If in reality (i.e., nature) the null is true, but the research rejects the null hypothesis,...
If in reality (i.e., nature) the null is true, but the research rejects the null hypothesis, the researcher has made a _____________. a. Type I Error b. Type II Error c. Correct conclusion and Power has been found d. Potentially correct conclusion
A college Statistics student randomly surveys 200 fellow students to determine whether students on campus prefer...
A college Statistics student randomly surveys 200 fellow students to determine whether students on campus prefer Cheetos or Doritos for their favorite study snack. The Statistics student rejects the null hypothesis that the proportion who prefer Cheetos is 0.5. Later a marketing firm surveys a large number of UMW students and concludes that there is no statistically significant difference between the students preference for Cheetos versus Doritos. Answer whether there was a Type I error, Type II error, or neither...
please help ?? A social researcher wants to test the hypothesis that college students may experience...
please help ??
A social researcher wants to test the hypothesis that college students may experience different levels of happiness depending on how much they are using social media. She surveyed students about the frequency of their social media use and their happiness. Among 10 heavy users, she found an average happiness score of 4.4 with a variance of 4.3, whereas the 10 light users reported an average happiness score of 6.5 with a variance of 3.4. heavy light Answer...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than 120. Write the null and alternative hypothesis statements . A dean at JWU claims that the mean time for students to eam a Master's Degree in Business is at most 5.2 years. Write the null and alternative hypothesis statements. A researcher claims that 65% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed The mean...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than 120. Write the null and alternative hypothesis statements . A dean at JWU claims that the mean time for students to eam a Master's Degree in Business is at most 5.2 years. Write the null and alternative hypothesis statements. A researcher claims that 65% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed The mean...
A professor claims that only 35% of the students at Flora College work while attending school. Dean...
A professor claims that only 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated that number and conducts a survey to determine if they can use the 35% in their published literature. The hypothesis test was conducted and the associated p-value for the test was: p-value = 0.15. What type of error can occur in this situation?
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is true, a. a Type II error has been committed b. a Type I error has been committed c. the correct decision has been made d. either a Type I or Type II error has been committed
please help ??
A social researcher wants to test the hypothesis that college students may experience different levels of happiness depending on how much they are using social media. She surveyed students about the frequency of their social media use and their happiness. Among 10 heavy users, she found an average happiness score of 4.4 with a variance of 4.3, whereas the 10 light users reported an average happiness score of 6.5 with a variance of 3.4. heavy light Answer...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than 120. Write the null and alternative hypothesis statements . A dean at JWU claims that the mean time for students to eam a Master's Degree in Business is at most 5.2 years. Write the null and alternative hypothesis statements. A researcher claims that 65% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed The mean...
Hypothesis Testing . It is claimed that the mean IQ of statistics instructors is greater than 120. Write the null and alternative hypothesis statements . A dean at JWU claims that the mean time for students to eam a Master's Degree in Business is at most 5.2 years. Write the null and alternative hypothesis statements. A researcher claims that 65% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed The mean...
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