Question

14.

Calculate the critical t-value(s) for each of the given hypothesis test scenarios below. If mulitple critical values exist for a single scenario, enter the solutions using a comma-separated list. Round t-values to four decimal places.

• Find the critical t-value(s) for a left-tailed test of hypothesis for a mean, assuming the population standard deviation is unknown, with a sample size of 25 and let α=0.005.
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• t=
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• Find the critical t-value(s) for a right-tailed test of hypothesis for a mean, assuming the population standard deviation is unknown, with a sample size of 72 and let α=0.0005.
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• t=
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• Find the critical t-value(s) for a two-tailed test of hypothesis for a mean, assuming the population standard deviation is unknown, with a sample size of 85 and a signifance level of 2%.
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• t=
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• Find the critical t-value(s) for a two-tailed test of hypothesis for a mean, assuming the population standard deviation is unknown, with a sample size of 50 and a signifance level of 10%.
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• t=

Answer 1