Hypothesis Testing (Z-Test) (3) - Protected View - Saved to this PC Mailings Review View Help O Search - Unless you need to edit, it's safer to stay in Protected View. Enable Editing 2. A random sample of 100 babies in a town is obtained, and the mean head circumference is found to be 40.6 cm Assuming that the population standard deviation is known to be 1.6 cm, use a 5% significance level to test the claim that the mean head circumference of the babies in this town differs from the normal head circumference of 40.0 cm for all two-month-old babies. a) Identify the following: b) Symbolically identify: Ho: НА: Circle the correct test for this problem: Right-tailed test Left-tailed test Two-tailed test c) Find the test statistic: (On1-x) %3D d) Sketch and shade the curve. Find the p-value. P- value = How does your p-value compare to a in part (a)? Circle the correct conclusion: REJECT THE NULL HYPOTHESIS DO NOT REJECT THE NULL HYPOTHESIS e) State your final conelusion in regards to this particular problem.

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2. A random sample of 100 babies in a town is obtained, and the mean head circumference is found to be 40.6
cm Assuming that the population standard deviation is known to be 1.6 cm, use a 5% significance level to test
the claim that the mean head circumference of the babies in this town differs from the normal head
circumference of 40.0 cm for all two-month-old babies.
a) Identify the following:
b) Symbolically identify: Ho:
НА:
Circle the correct test for this problem: Right-tailed test
Left-tailed test
Two-tailed test
c) Find the test statistic:
(On1-x)
%3D
d) Sketch and shade the curve. Find the p-value.
P- value =
How does your p-value compare to a in part (a)?
Circle the correct conclusion: REJECT THE NULL HYPOTHESIS
DO NOT REJECT THE NULL HYPOTHESIS
e) State your final conelusion in regards to this particular problem.
Transcribed Image Text:Hypothesis Testing (Z-Test) (3) - Protected View - Saved to this PC Mailings Review View Help O Search - Unless you need to edit, it's safer to stay in Protected View. Enable Editing 2. A random sample of 100 babies in a town is obtained, and the mean head circumference is found to be 40.6 cm Assuming that the population standard deviation is known to be 1.6 cm, use a 5% significance level to test the claim that the mean head circumference of the babies in this town differs from the normal head circumference of 40.0 cm for all two-month-old babies. a) Identify the following: b) Symbolically identify: Ho: НА: Circle the correct test for this problem: Right-tailed test Left-tailed test Two-tailed test c) Find the test statistic: (On1-x) %3D d) Sketch and shade the curve. Find the p-value. P- value = How does your p-value compare to a in part (a)? Circle the correct conclusion: REJECT THE NULL HYPOTHESIS DO NOT REJECT THE NULL HYPOTHESIS e) State your final conelusion in regards to this particular problem.
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