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IQ scores are normally distributed with an average of 100 and a standard deviation of 16. Some research suggests that left-handed individuals have a higher IQ score than right-handed individuals. To test this hypothesis, you randomly select 132 individuals and find that their average IQ is 103.2 with a sample standard deviation of 14.6. You formulate the null hypothesis H0: μ = H> versus the alternative hypothesis H1: Using the results from the sample, you calculate the test statistic as t = ( )/( N Hint: Write the t-statistic (value in the last blank) in two decimal places. Since the critical value for the one-sided alternative is level, you reject the null hypothesis. Hint: Write the critical value in two decimal places. ) = at the 5% significance

IQ scores are normally distributed with an average of 100 and a standard deviation of 16. Some research suggests that left-handed individuals have a higher IQ score than right-handed individuals. To test this hypothesis, you randomly select 132 individuals and find that their average IQ is 103.2 with a sample standard deviation of 14.6. You formulate the null hypothesis H0: μ = H> versus the alternative hypothesis H1: Using the results from the sample, you calculate the test statistic as t = ( )/( N Hint: Write the t-statistic (value in the last blank) in two decimal places. Since the critical value for the one-sided alternative is level, you reject the null hypothesis. Hint: Write the critical value in two decimal places. ) = at the 5% significance

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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IQ scores are normally distributed with an average of 100 and a standard deviation of 16. Some research suggests that left-handed individuals have a higher IQ score than right-handed individuals. To test this hypothesis, you randomly select 132 individuals and find that their average IQ is 103.2 with a sample standard deviation of 14.6. You formulate the null hypothesis H0: µ = H> versus the alternative hypothesis H1: Using the results from the sample, you calculate the test statistic as t = ( )/( N ) = Hint: Write the t-statistic (value in the last blank) in two decimal places. Since the critical value for the one-sided alternative is level, you reject the null hypothesis. Hint: Write the critical value in two decimal places. at the 5% significance
Transcribed Image Text:IQ scores are normally distributed with an average of 100 and a standard deviation of 16. Some research suggests that left-handed individuals have a higher IQ score than right-handed individuals. To test this hypothesis, you randomly select 132 individuals and find that their average IQ is 103.2 with a sample standard deviation of 14.6. You formulate the null hypothesis H0: µ = H> versus the alternative hypothesis H1: Using the results from the sample, you calculate the test statistic as t = ( )/( N ) = Hint: Write the t-statistic (value in the last blank) in two decimal places. Since the critical value for the one-sided alternative is level, you reject the null hypothesis. Hint: Write the critical value in two decimal places. at the 5% significance
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Calculus For The Life Sciences
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ISBN:
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