Question

Perform each of the following steps: a. State the hypotheses and identify the claim. b. Find the critical value(s). c. Compute the test value. d. Make the decision. e. Summarize the results.

AVALANCHE The average avalanche will leave a depth of snow of 180.009 inches, according to meteorologists ( with a stdev = 10.6 inches). Joanna believes that average depth is LOWER than stated and goes about testing several occurrences. She tests 49 avalanche occurrences and obtains a sample mean of 178 .29 inches. Test her claim at a 95% level. . PROVIDE A DETAILED TEST by answering the questions below.----- DO NOT USE THE P-VALUE METHOD—USE THE TRADITIONAL METHOD

Answer #1

a)

H0: = 180.009

Ha: < 180.009

b)

Critical value at 0.05 level = -1.645

c)

Test statistics

z = - / / sqrt(n)

= 178.29 - 180.009 / 10.6 / sqrt(49)

= -1.135

d)

Since test statistics falls in non-rejection region, (That is z > -1.645) , we do not have sufficient

evidence to reject H0 .

e)

We conclude at 0.05 level that we fail to support the claim.

Perform each of the following steps: a. State the hypotheses and
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test value. d. Make the decision. e. Summarize the results.
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Find the critical values(s).
Compute the test value.
Make the decision.
Summarize the results.
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For each exercise, perform these steps. Assume that all
variables are normally or approximately normally
distributed.
a.State the
hypotheses and identify the claim.
b.Find the
critical value(s) or use the P-value method.
c.Compute
the test value.
d.Make the
decision.
e.Summarize
the results.
Use the traditional method of hypothesis testing unless the
P-value method is specified by your instructor.
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Using the model proposed by Lafley and Charan, analyze how
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case:
W17400
APIGEE: PEOPLE MANAGEMENT PRACTICES AND THE CHALLENGE OF
GROWTH
Ranjeet Nambudiri, S. Ramnarayan, and Catherine Xavier wrote
this case solely to provide material for class discussion. The
authors do not intend to illustrate either effective or ineffective
handling of a managerial situation. The authors may have disguised
certain names and other identifying information to protect
confidentiality.
This publication may not be...

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