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5. You are given the following information about a hypothesis test that is being performed on...
5. You are given the following information about a hypothesis test that is being performed on...
5. You are given the following information about a hypothesis test that is being performed on a random sample taken from a normal distribution with mean : • The unbiased sample variance is 9. • The sample size is 16. • H:= 80 • He: H > 80 Let tay be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta for specific combinations of a and v: v =...
4. You are given the following information on a random sample from a normal loss distri-...
4. You are given the following information on a random sample from a normal loss distri- bution with mean : • The sample mean is 42000. • The sample standard deviation is 8000. • There are 25 loss observations in the sample. Let to be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta for specific combinations of a and v: v = 23 v = 24 a =...
7. You are given two random samples of paid claim amounts for two Hospitals, A and...
7. You are given two random samples of paid claim amounts for two Hospitals, A and B, which independently follow normal distributions with equal variances and means pa and MB. The results for the paid claim amounts are Hospital A: 6.21 7.31 Hospital B: 7.89 | 10.12 5.67 7.88 3.89 9.71 5.55 | 4.33 | 12.48 The unbiased standard deviations calculated from the observations above are sa = 1.56 and so = 3.04. Let to be the critical value of...
7. You are given two random samples of paid claim amounts for two Hospitals, A and...
7. You are given two random samples of paid claim amounts for two Hospitals, A and B. which independently follow normal distributions with equal variances and means A and MB. The results for the paid claim amounts are Hospital A: Hospital B: 6.21 7.34 5.67 7.88 7.89 10.12 9.71 5.55 3.89 4.33 12.48 The unbiased standard deviations calculated from the observations above are sa = 1.56 and so = 3.04. Let to be the critical value of a t random...
you are given For a random sample of size 13 from a normal distribution with mean...
you are given For a random sample of size 13 from a normal distribution with mean the following regarding the observations: 3 (xi – ī)2 = 77.8 The width of the 100k% confidence interval for u is 2.7005. Let to be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta, for specific combinations of a and v: v = 12 v = 13 a=0.1 1.356 1.350 a= 0.07 1...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. A manual states that in order to be a hit, a song must be no longer than three minutes and thirty seconds (or 210 seconds). A simple random sample of 50 current hit songs results in a mean length of 252.5 sec. Assume the population standard deviation of song lengths is 53.5 sec....
A. B. Please follow the steps of hypothesis testing, including identifying the alternative and null hypothesis,...
A.
B.
Please follow the steps of hypothesis testing, including
identifying the alternative and null hypothesis, calculating the
test statistic, finding the p-value, and making a conclusions about
the null hypothesis and a final conclusion that addresses the
original claim. Use a significance level of 0.10. Is the conclusion
affected by whether the significance level is 0.10 or 0.01?
Test Statistic=______ (Round to two decimal places)
P-Value=______ (Round to three decimal places)
Answer choices below:
a) Yes, the conclusion is...
df to.10 0.025 t0.01 to.0ns df Values of ta 3.078 6.314 2.706 31.821 63.657 1886 2.920...
df to.10 0.025 t0.01 to.0ns df Values of ta 3.078 6.314 2.706 31.821 63.657 1886 2.920 4.303 6.965 9.925 1.638 2.353 3.182 .54 5.841 1.533 2.132 2.776 3.747 4.604 0 1.476 2.015 2.5 3.365 4.032 1.440 1.93 2.4473.143 3.707 1.415 1895 2.365 2.998 3.499 1.397 1860 2.306 2.896 3.355 1.383 1833 2.22 2.82 3.250 1.372 1.812 .282.764 3.169 1.363 1.796 2.20 2.718 3.106 1.356 1.782 2.179 2.68 3.055 1.350 77 2.160 2.650 3.012 1.345 76 2.145 2.624 2.977 10 10...
3. At test for two related samples Aa Aa A researcher is interested in how left-handedness...
3. At test for two related samples Aa Aa A researcher is interested in how left-handedness is related to hemispheric specialization in the brain. She matches N 25 right-handed students with left-handed students on their cognitive abilities and hand-eye coordination and then asks them to identify letter strings flashed onto the right or left sides of a screen as either words or nonwords she then compares the two groups on the number of non words flashed onto the right side...
10. The t test for two independent samples - One-tailed example using tables Most engaged couples...
10. The t test for two independent samples - One-tailed example using tables Most engaged couples expect or at least hope that they will have high levels of marital satisfaction. However, because 54% of first marriages end in divorce, social scientists have begun investigating influences on marital satisfaction. [Data source: This data was obtained from the National Center for Health Statistics.] Suppose a clinical psychologist sets out to look at the role of sexual orientation in relationship longevity. He decides...
5. You are given the following information about a hypothesis test that is being performed on a random sample taken from a normal distribution with mean : • The unbiased sample variance is 9. • The sample size is 16. • H:= 80 • He: H > 80 Let tay be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta for specific combinations of a and v: v =...
4. You are given the following information on a random sample from a normal loss distri- bution with mean : • The sample mean is 42000. • The sample standard deviation is 8000. • There are 25 loss observations in the sample. Let to be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta for specific combinations of a and v: v = 23 v = 24 a =...
7. You are given two random samples of paid claim amounts for two Hospitals, A and B, which independently follow normal distributions with equal variances and means pa and MB. The results for the paid claim amounts are Hospital A: 6.21 7.31 Hospital B: 7.89 | 10.12 5.67 7.88 3.89 9.71 5.55 | 4.33 | 12.48 The unbiased standard deviations calculated from the observations above are sa = 1.56 and so = 3.04. Let to be the critical value of...
7. You are given two random samples of paid claim amounts for two Hospitals, A and B. which independently follow normal distributions with equal variances and means A and MB. The results for the paid claim amounts are Hospital A: Hospital B: 6.21 7.34 5.67 7.88 7.89 10.12 9.71 5.55 3.89 4.33 12.48 The unbiased standard deviations calculated from the observations above are sa = 1.56 and so = 3.04. Let to be the critical value of a t random...
you are given For a random sample of size 13 from a normal distribution with mean the following regarding the observations: 3 (xi – ī)2 = 77.8 The width of the 100k% confidence interval for u is 2.7005. Let to be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta, for specific combinations of a and v: v = 12 v = 13 a=0.1 1.356 1.350 a= 0.07 1...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. A manual states that in order to be a hit, a song must be no longer than three minutes and thirty seconds (or 210 seconds). A simple random sample of 50 current hit songs results in a mean length of 252.5 sec. Assume the population standard deviation of song lengths is 53.5 sec....
A.
B.
Please follow the steps of hypothesis testing, including
identifying the alternative and null hypothesis, calculating the
test statistic, finding the p-value, and making a conclusions about
the null hypothesis and a final conclusion that addresses the
original claim. Use a significance level of 0.10. Is the conclusion
affected by whether the significance level is 0.10 or 0.01?
Test Statistic=______ (Round to two decimal places)
P-Value=______ (Round to three decimal places)
Answer choices below:
a) Yes, the conclusion is...
df to.10 0.025 t0.01 to.0ns df Values of ta 3.078 6.314 2.706 31.821 63.657 1886 2.920 4.303 6.965 9.925 1.638 2.353 3.182 .54 5.841 1.533 2.132 2.776 3.747 4.604 0 1.476 2.015 2.5 3.365 4.032 1.440 1.93 2.4473.143 3.707 1.415 1895 2.365 2.998 3.499 1.397 1860 2.306 2.896 3.355 1.383 1833 2.22 2.82 3.250 1.372 1.812 .282.764 3.169 1.363 1.796 2.20 2.718 3.106 1.356 1.782 2.179 2.68 3.055 1.350 77 2.160 2.650 3.012 1.345 76 2.145 2.624 2.977 10 10...
3. At test for two related samples Aa Aa A researcher is interested in how left-handedness is related to hemispheric specialization in the brain. She matches N 25 right-handed students with left-handed students on their cognitive abilities and hand-eye coordination and then asks them to identify letter strings flashed onto the right or left sides of a screen as either words or nonwords she then compares the two groups on the number of non words flashed onto the right side...
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