Test the null hypothesis H0:μ=3.2against the alternative hypothesis HA:μ<3.2, based on a random sample of 25...
Test the null hypothesis H0:μ=3.2against the alternative hypothesis HA:μ<3.2, based on a random sample of 25 observations drawn from a normally distributed population with x¯=3 and σ=0.72.
a) What is the value of the test statistic? Round your response to at least 3 decimal places.
b) What is the appropriate p-value? Round your response to at least 3 decimal places.
c) Is the null hypothesis rejected at:
i) the 10% level of significance?
ii) the 5% level of significance?
Homework Answers
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Test the null hypothesis H0:μ=3.2against the alternative
hypothesis HA:μ<3.2, based on a random sample of 25...
Test the null hypothesis H0:μ=3.2against the alternative hypothesis HA:μ<3.2, based on a random sample of 25...
Test the null hypothesis H0:μ=3.2against the alternative hypothesis HA:μ<3.2, based on a random sample of 25 observations drawn from a normally distributed population with x¯=3 and σ=0.71. a) What is the value of the test statistic? Round your response to at least 3 decimal places. b) What is the appropriate p-value? Round your response to at least 3 decimal places. c) Is the null hypothesis rejected at: i) the 10% level of significance? NoYesClick for List ii) the...
Test the null hypothesis H0:μ=3.3against the alternative hypothesis HA:μ<3.3, based on a random sample of 25...
Test the null hypothesis H0:μ=3.3against the alternative hypothesis HA:μ<3.3, based on a random sample of 25 observations drawn from a normally distributed population with x¯=3.1 and σ=0.68. a) What is the value of the test statistic? Round your response to at least 3 decimal places. b) What is the appropriate p-value? Round your response to at least 3 decimal places. c) Is the null hypothesis rejected at: i) the 10% level of significance? NoYesClick for List ii) the...
9 Test the null hypothesis Ho : u = 3.0against the alternative hypothesis HA: U < 3.0 , based on a random sample of 2...
9
Test the null hypothesis Ho : u = 3.0against the alternative hypothesis HA: U < 3.0 , based on a random sample of 25 observations drawn from a normally distributed population with ū = 2.8 and o = 0.70. a) What is the value of the test statistic? Round your response to at least 3 decimal places. Number b) What is the appropriate p-value? Round your response to at least 3 decimal places. Number c) Is the null hypothesis...
> 9.9, based on a random sample of 71 observations drawn from a Test the null...
> 9.9, based on a random sample of 71 observations drawn from a Test the null hypothesis Ho: M=9.9against the alternative hypothesis HA: normally distributed population with Z = 4.1 and 0 = 0.89. a) What is the value of the test statistic? Give your response to at least 3 decimal places. Number b) What is the appropriate p-value? Give your response to at least 3 decimal places. Number c) Is the null hypothesis rejected at: i) the 10% level...
(a) Suppose the null and alternative hypothesis of a test are: H0: μ= 9.7 H1: μ...
(a) Suppose the null and alternative hypothesis of a test are: H0: μ= 9.7 H1: μ >9.7 Then the test is: left-tailed two-tailed right-tailed (b) If you conduct a hypothesis test at the 0.02 significance level and calculate a P-value of 0.07, then what should your decision be? Fail to reject H0 Reject H0 Not enough information is given to make a decision
A test of the null hypothesis H0: μ = μ0 gives test statistic z = 0.45....
A test of the null hypothesis H0: μ = μ0 gives test statistic z = 0.45. (Round your answers to four decimal places.) (a) What is the P-value if the alternative is Ha: μ > μ0? (b) What is the P-value if the alternative is Ha: μ < μ0? (c) What is the P-value if the alternative is Ha: μ ≠ μ0?
Suppose the number of cars pulling into a certain convenience store between 2:00 and 3:00 am on weeknights approximatel...
Suppose the number of cars pulling into a certain convenience store between 2:00 and 3:00 am on weeknights approximately follows a Poisson distribution with X = 2.8 On a randomly selected weeknight, what is the probability fewer than 1 cars pull in between 2:00 and 3:00 am? Round your answer to at least 3 decimal places. Number > 3.2 , based on a random sample of 73 observations drawn from a Test the null hypothesis HO : = 3.2against the...
In a large lake, a sample of size 89 three-year old walleye had a mean weight...
In a large lake, a sample of size 89 three-year old walleye had a mean weight of 512 grams. Suppose from previous knowledge it is reasonable to believe that = 7E1 Suppose we wish to calculate a confidence interval for mu, the true mean weight of three-year old walleye in this lake. Suppose that it is reasonable to think of our sample as a simple random sample of these fish from this lake. a) What is the margin of error...
Given the following hypothesis: H0 : μ ≤ 12 H1 : μ > 12 For...
Given the following hypothesis: H0 : μ ≤ 12 H1 : μ > 12 For a random sample of 10 observations, the sample mean was 14 and the sample standard deviation 4.80. Using the .05 significance level: (a) State the decision rule. (Round your answer to 3 decimal places.) (Click to select)Cannot rejectReject H0 if t > (b) Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic (c)...
Suppose a study is done to test the null hypothesis H0: μ = 100. A random...
Suppose a study is done to test the null hypothesis
H0: μ = 100. A random sample of
n = 42 observations results in x = 104 and
s = 11.
(a) What is the null standard error in this case? (Round your
answer to three decimal places.)
(b) Plug numbers into the formula and enter the result in the
answer box. (Round your answer to three decimal places.)
Sample statistic
− Null value
Null standard
error
(c) On the...
9
Test the null hypothesis Ho : u = 3.0against the alternative hypothesis HA: U < 3.0 , based on a random sample of 25 observations drawn from a normally distributed population with ū = 2.8 and o = 0.70. a) What is the value of the test statistic? Round your response to at least 3 decimal places. Number b) What is the appropriate p-value? Round your response to at least 3 decimal places. Number c) Is the null hypothesis...
> 9.9, based on a random sample of 71 observations drawn from a Test the null hypothesis Ho: M=9.9against the alternative hypothesis HA: normally distributed population with Z = 4.1 and 0 = 0.89. a) What is the value of the test statistic? Give your response to at least 3 decimal places. Number b) What is the appropriate p-value? Give your response to at least 3 decimal places. Number c) Is the null hypothesis rejected at: i) the 10% level...
Suppose the number of cars pulling into a certain convenience store between 2:00 and 3:00 am on weeknights approximately follows a Poisson distribution with X = 2.8 On a randomly selected weeknight, what is the probability fewer than 1 cars pull in between 2:00 and 3:00 am? Round your answer to at least 3 decimal places. Number > 3.2 , based on a random sample of 73 observations drawn from a Test the null hypothesis HO : = 3.2against the...
In a large lake, a sample of size 89 three-year old walleye had a mean weight of 512 grams. Suppose from previous knowledge it is reasonable to believe that = 7E1 Suppose we wish to calculate a confidence interval for mu, the true mean weight of three-year old walleye in this lake. Suppose that it is reasonable to think of our sample as a simple random sample of these fish from this lake. a) What is the margin of error...
Suppose a study is done to test the null hypothesis
H0: μ = 100. A random sample of
n = 42 observations results in x = 104 and
s = 11.
(a) What is the null standard error in this case? (Round your
answer to three decimal places.)
(b) Plug numbers into the formula and enter the result in the
answer box. (Round your answer to three decimal places.)
Sample statistic
− Null value
Null standard
error
(c) On the...
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