14. Blood glucose levels for overweight patients have a mean of 120 with a standard deviation of 19. A researcher thinks that a diet high in raw cornstarch will have a positive or negative effect on blood glucose levels. A sample of 30 patients who have tried the raw cornstarch diet have a mean glucose level of 160. Test the hypothesis that the raw cornstarch had an effect. e.) a) b) State the null hypothesis Determine the critical value (cv) Determine the Z-value Indicate values on the bell curve c) d) e) Provide decision rule a) the null hypothesis had no effect b.) ore sailed test significance level of 0.05 is 1.695 c)2 = (160-120)/(19/530) 8.02 2 d) . 9.02 1.645 to improve sales. Past sales data indicate that the average sale w

MATLAB: An Introduction with Applications
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14. Blood glucose levels for overweight patients have a mean of 120 with a standard deviation of 19. A researcher thinks that a diet high in
raw cornstarch will have a positive or negative effect on blood glucose levels. A sample of 30 patients who have tried the raw cornstarch diet
have a mean glucose level of 160. Test the hypothesis that the raw cornstarch had an effect.
e.)
a)
b)
C)
d)
e)
State the null hypothesis
Determine the critical value (cv)
Determine the Z-value
Indicate values on the bell curve
Provide decision rule
a) The null hypothesis had no effect
b.) ore tailed test significance level of 0.05 is 1.695
c) 2 (160-120)/(19/530)
8.02.2
d)
.
9.02
1.645
15. A sports eyewear company wants to improve sales. Past sales data indicate that the average sale was $150 per transaction. After training
the company's sales team, recent sales data (taken from a sample of 20 salesmen) indicates an average sale of $180, with a standard deviation
en Did the training work? Conduct a hypothesis testing at a 5% alpha lovel
Transcribed Image Text:14. Blood glucose levels for overweight patients have a mean of 120 with a standard deviation of 19. A researcher thinks that a diet high in raw cornstarch will have a positive or negative effect on blood glucose levels. A sample of 30 patients who have tried the raw cornstarch diet have a mean glucose level of 160. Test the hypothesis that the raw cornstarch had an effect. e.) a) b) C) d) e) State the null hypothesis Determine the critical value (cv) Determine the Z-value Indicate values on the bell curve Provide decision rule a) The null hypothesis had no effect b.) ore tailed test significance level of 0.05 is 1.695 c) 2 (160-120)/(19/530) 8.02.2 d) . 9.02 1.645 15. A sports eyewear company wants to improve sales. Past sales data indicate that the average sale was $150 per transaction. After training the company's sales team, recent sales data (taken from a sample of 20 salesmen) indicates an average sale of $180, with a standard deviation en Did the training work? Conduct a hypothesis testing at a 5% alpha lovel
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