Question

In: Statistics and Probability

If a hypothesis test turns out to be statistically significant at the significance level of 0.01...

  1. If a hypothesis test turns out to be statistically significant at the significance level of 0.01 (meaning reject the null hypothesis at 0.01 significance level), it will also be significant at:  Circle your answer(s)​   

  1. Significant level of 0.05  
  2. Significant level of 0.001
  3. Significant level of 0.005
  4. Significant level of 0.1

  1. Which p-value would provide more evidence against the null hypothesis:

            p-value of 0.02 and p-value of 0.04. Explain your answer.​   

  1. ATM machines must be stocked enough cash to satisfy customers making withdrawals over an entire weekend. However, if too much cash is kept in ATMs, the bank is forgoing the opportunities of investing the money to earn interests. Suppose that at a particular branch, the expected mean amount of money withdrawn from ATMs per customer over weekend is $160 and the population standard deviation of $30. If a random sample of 36 customers is examined and the sample mean withdrawal is $172, is there enough evidence to believe that average withdrawal is more than $160. Use the significance level of 0.05 to perform your test. Remember to perform all the steps.​   

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A 0.01 significance level is used for a hypothesis test of the claim that when parents...
A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 78 girls in 169 ​births, so the sample statistic of six thirteenths results in a z score that is 1 standard deviation below 0. Complete parts​ (a) through​ (h) below. A . Identify the null hypothesis and the alternative hypothesis. Choose the...
A 0.01 significance level is used for a hypothesis test of the claim that when parents...
A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 78 girls in 169 births, so the sample statistic of 6/13 results in a z score that is 1 standard deviation Complete parts (a) through (h) below a. identify the null hypothesis and alternative hypothesis. b. what is the value of a?...
A 0.01 significance level is used for a hypothesis test of the claim that when parents...
A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender? selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 66 girls in 144 ?births, so the sample statistic of StartFraction 11 Over 24 EndFraction results in a z score that is 1 standard deviation below 0. Complete parts? (a) through? (h) below. Click here to view page 1 of the Normal...
A 0.01 significance level is used for a hypothesis test of the claim that when parents...
A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 66 girls in 144 births, so the sample statistic of 11/24 results in a z score that is 1 standard deviation below 0. a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below. A.H0​:p=0.5 H1​:p>0.5 B. H0​: p≠0.5...
Determine whether the correlation coefficient is statistically significant at the specified level of significance for the...
Determine whether the correlation coefficient is statistically significant at the specified level of significance for the given sample size. r = 0.403, ? = 0.05, n = 25
The result of a hypothesis test is said to be "statistically significant" under all the following...
The result of a hypothesis test is said to be "statistically significant" under all the following circumstances EXCEPT: Group of answer choices There is convincing evidence supporting the alternative hypothesis. The P-value is less than alpha. The difference observed between the sample result and the parameter value stated in the null hypothesis is important in the real world. The difference observed between the sample result and the value stated in the null hypothesis is highly unlikely to be due to...
What does it mean for a hypothesis test to be statistically significant? How is this different...
What does it mean for a hypothesis test to be statistically significant? How is this different from our everyday notions of “significant”? Make sure that you respond to your classmates as well.
Conduct a test and find if there is a difference at the α=0.01 level of significance....
Conduct a test and find if there is a difference at the α=0.01 level of significance. In​randomized, double-blind clinical trials of a new vaccine, children were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the first dose, 67 of 607 subjects in the experimental group (group 1) experienced fever as a side effect. After the first dose, 109 of 728 subjects in the control group​...
Conduct a test at the a=0.01 level of significance by determining ​(a) the null and alternative​...
Conduct a test at the a=0.01 level of significance by determining ​(a) the null and alternative​ hypotheses, ​(b) the test​ statistic, and​ (c) the​ P-value. Assume the samples were obtained independently from a large population using simple random sampling. Test whether p1>p2. The sample data are x1=116, n1= 252​,x2=142​, and n2=303. a. Choose the correct null and alternative hypotheses below. A. H0: p1= p 2 versus H1: p1 > p 2 B. H0 : p1=p2 versus H1: p1≠p2 C. H0:...
1.) When the results of a hypothesis test are statistically significant what is the formal conclusion...
1.) When the results of a hypothesis test are statistically significant what is the formal conclusion to the hypothesis test? a.) Accept the null hypothesis b.) Fail to reject the null hypothesis c.) Reject the alternative hypothesis d.) Reject the null hypothesis and accept the alternative hypothesis 2.) When the results of a hypothesis test are not statistically significant what is the formal conclusion to the hypothesis test? a.) Accept the null hypothesis b.) Fail to reject the null hypothesis...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT