For sample average = 28 and a μ = 17 and a s = 4 and a sample size n = 7, compute the t-score. Round your answers to 2 decimal places and be sure to include the negative (-) if necessary, in your answer. Enter your response in the space provided here.
For sample average = 1.5 and a μ = 1.52 and a s = 7 and a sample size n = 10, compute the t-score. Round your answers to 2 decimal places and be sure to include the negative (-) if necessary, in your answer. Enter your response in the space provided here.
First sample average = 3 Second sample average = 8 SS for first sample = 17 SS for second sample = 13 Sample size for first sample = 5 Sample size for second sample = 5 Compute the t-score. Round your answers to 2 decimal places and be sure to include the negative (-) if necessary, in your answer. Enter your response in the space provided here.
First sample average = 4 Second sample average = 9 SS for first sample = 16 SS for second sample = 15 Sample size for first sample = 8 Sample size for second sample = 8 Compute the t-score. Round your answers to 2 decimal places and be sure to include the negative (-) if necessary, in your answer. Enter your response in the space provided here.
The average price of a college math textbook is $161 and the standard deviation is $28. Suppose that 17 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. What is the distribution of ¯xx¯? ¯xx¯ ~ N( ___ , ___ ) For the group of 17, find the probability that the average price is between $168 and $173. _____ Find the third quartile for the average textbook price for this sample size. $ _____ (round to...
Given the following hypotheses: H0: μ = 540 H1: μ ≠ 540 A random sample of 10 observations is selected from a normal population. The sample mean was 550 and the sample standard deviation was 6. Using the 0.10 significance level: State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Compute the value of the test statistic. (Round your answer to 3 decimal places.)
Given the following hypotheses: H0: μ ≤ 13 H1: μ > 13 A random sample of 10 observations is selected from a normal population. The sample mean was 11 and the sample standard deviation 3.6. Using the 0.05 significance level: State the decision rule. (Round your answer to 3 decimal places.) Compute the value of the test statistic. (Negative answers should be indicated by a minus sign. Round your answer to 3 decimal places.) What is your decision regarding the...
Determine μx and σx from the given parameters of the population and sample size. μ=32, σ=17, n=33 μx=__?__ σx=__?__ (Round to three decimal places as needed.)
Suppose x has a distribution with μ = 32 and σ = 17. (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? No, the sample size is too small. Yes, the x distribution is normal with mean μ x = 32 and σ x = 17. Yes, the x distribution is normal with mean μ x = 32 and σ x = 1.1. Yes, the x distribution...
To test Ho μ-100 versus H1 : μ#100, a simple random sample size ofna 23 is obtained from a population that is known to be normally distributed. Answer parts EB Click here to view the t-Distribution Area in Right Tail. (a) If x 105.4 and s 9.3, compute the test statistic (Round to three decimal places as needed.)
Given the following hypotheses: H0: μ = 600 H1: μ ≠ 600 A random sample of 16 observations is selected from a normal population. The sample mean was 609 and the sample standard deviation 6. Using the 0.10 significance level: State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 when the test statistic is outside the interval ( , ). ? Compute the value of the test...