A study uses a random sample of size 15. The test statistic for testing Upper H...
A study uses a random sample of size 15. The test statistic for testing Upper H 0 : mu equals 12 versus Upper H Subscript a Baseline : mu not equals 12 is t equals negative 2.5 . Find the approximate P-value. Round your answer to two decimal places. A. 0.013 B. 0.050 C. 0.990 D. 0.025 E. The P-value cannot be determined without the sample standard deviation.
(please explain the steps using TI84 calculator and the keys to enter in the calculator!!!)
Homework Answers
Option D) is correct.
P value is 0.025...............................By using Excel command TDIST(-2.5,14,2)
Degree of freedom =n-1 = 15-1 = 14
P value procedure by using TI-84
Find the absolute value of t_calc
>>2nd DISTR
>>Scroll down to tcdf(
>> ENTER
>> Now enter: |t_calc|, 1000, df)
>> ENTER
>>Output is ½ of the P-value so
>> Multiply result by 2
Add Answer to:
A study uses a random sample of size 15. The test statistic for
testing Upper H...
A study uses a random sample of size 15. The test statistic for testing Upper H...
A study uses a random sample of size 15. The test statistic for testing Upper H 0 : mu equals 12 versus Upper H Subscript a Baseline : mu not equals 12 is t equals negative 2.5 . Find the approximate P-value. Round your answer to two decimal places.
A study has a random sample of 27 subjects. The test statistic for testing Upper H...
A study has a random sample of 27 subjects. The test statistic for testing Upper H 0 : mu equals 150H0: μ=150 is tequals=2.53. Find the approximate P-value for the alternative a. Upper H Subscript a Baseline : muHa: μnot equals≠150, b. Upper H Subscript a Baseline : muHa: μgreater than>150, and c. Upper H Subscript a Baseline : muHa: μless than<150.
Use the t-distribution and the given sample results to complete the test of the given hypotheses....
Use the t-distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from random samples, and if the sample sizes are small, assume the underlying distributions are relatively normal. Test Upper H Subscript 0 Baseline : mu Subscript 1 Baseline equals mu Subscript 2 vs Upper H Subscript a Baseline : mu Subscript 1 Baseline not-equals mu Subscript 2 using the sample results x Overscript bar EndScripts Subscript 1 Baseline equals 15.3,...
Consider testing Upper H 0 : mu equals 20H0: μ=20 against Upper H Subscript a Baseline...
Consider testing Upper H 0 : mu equals 20H0: μ=20 against Upper H Subscript a Baseline : mu less than 20Ha: μ<20 where muμ is the mean number of latex gloves used per week by all hospital employees, based on the summary statistics nequals=4444, x overbarxequals=19.219.2, and sequals=11.211.2. Compute the p-value of the test.
In a test of Upper H 0: mu=100 against Upper H Subscript a: mu not equals100,...
In a test of Upper H 0: mu=100 against Upper H Subscript a: mu not equals100, the sample data yielded the test statistic z=2.24. Find the Upper P-value for the test.
A study has a random sample of 23 subjects. The test statistic for testing Ho: H=50...
A study has a random sample of 23 subjects. The test statistic for testing Ho: H=50 ist= 1.77. Find the approximate P-value for the alternative a. H: * 50, b. He: >50, and c. H : <50. a. Find the P-value for the alternative He:*50. P-value = (Round to three decimal places as needed.) b. Find the P-value for the alternative He: >50. P-value = (Round to three decimal places as needed.) c. Find the P-value for the alternative H,:<50....
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A study has a random sample of 29 test subjects. the test statistic for testing H0:...
A study has a random sample of 29 test subjects. the test statistic for testing H0: u=100 is t= 1.81. find the approximate P- value for the alternative. A) Ha: u (does not equal) 100 p-value=?? B) Ha : u > 100 p-value=?? C) Ha: u < 100 p-value=??
In a test of Upper H 0H0: muμequals=100 against Upper H Subscript aHa: muμnot equals≠100, the...
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