# Significance test questions and answers

Recent questions in Significance tests
Pamela Meyer 2021-12-20 Answered

### The average life span of a Golden Retriever is said to be 9.6 years. In a random sample of 15 Golden Retrievers, the following life spans were found: 6.8 10.2 9.5 13 9.9 7.0 8.3 8.9 11.2 10 9.8 13 9.8 9.5 8.7 At a 5% significance level, if we do a complete hypothesis test to test eh claim that the average life span of Golden Retrievers is 9.5, the p-value and conclusion are: p-value = 0.8187, fail to reject the null hypothesis p-value = 0.8153, fail to reject the null hypothesis p-value = 0.8187, reject the null hypothesis p-value = 0.8153, reject the null hypothesis

Carol Valentine 2021-12-18 Answered

### Your math test scores are 68, 78, 90, and 91. What is the lowest score you can earn on the next test and still achieve an average of at least 85? Getting an Answer Solve your inequality to find the lowest score you can earn on the next test and still achieve an average of at least 85. What score do you need to earn?

Emeli Hagan 2021-11-06 Answered

### For a test of $$\displaystyle{H}_{{{0}}}:\ {p}={0.5},$$ the z test statistic equals 1.74. Find the p-value for $$\displaystyle{H}_{{{a}}}:\ {p}{>}{0.5}$$. a) 0.0446 b) 0.0409 c) 0.892 d) 0.9591 e) 0.0818 f) 0.9554

Cheyanne Leigh 2021-06-30 Answered

### For a test of $$H_{0}:\ p=0.5,$$ the z test statistic equals 1.74. Find the p-value for $$H_{a}:\ p>0.5$$. a) 0.0446 b) 0.0409 c) 0.892 d) 0.9591 e) 0.0818 f) 0.9554

Brennan Flores 2021-05-28 Answered

### Find the margin of error for the given values of c,s, and n. c=0.95, s=2.2, n=64

Braxton Pugh 2021-05-25 Answered

### The means of the number of revolutions per minute of two competing engines are to be compared. Thirty engines are randomly assigned to be tested. Both populations have normal distributions. Table 10.9 shows the result. Do the data indicate that Engine 2 has higher RPM than Engine 1? Test at a 5% level of significance. EngineSample Mean Number of RPMPopulation Standard Deviation 11,50050 21,60060 Table 10.9

Zoe Oneal 2021-03-06 Answered

### To explain:Whether the samples are independent or dependent.

Trent Carpenter 2021-03-05 Answered