Question

The following data from a random sample represents the average daily energy intake in kJ for each of eleven healthy women:

5260 5470 5640 6180 6390 6515 6805 7515 7515 8230 8770

Interest centred on comparing these
data with an underlying mean daily energy intake of 7725 kJ This
was the recommended daily intake. Departures from this mean in
either direction were considered to be of interest. Assuming that
the population is normal and the population variance is unknown. An
appropriate two-tailed hypothesis test at the 5% level of
significance was conducted. The null hypothesis is H_{0}:
*m* = 7725. What is the degree of freedom *df* in
this problem?

Answer #1

Set up hypotheses for the following
situations and explain your reasoning (One-tail or two-tailed? What
are your null and alternate hypotheses? Why?). Indicate whether a
z-test or t-test would be recommended to evaluate
the hypotheses. If a t-test is recommended, how many
degrees of freedom should be used?
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Group of answer choices
a.)-.50
b.)-.25
c.).75
d.)-1.00
In what situation would a researcher use
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Group of answer choices
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Explain.
Yes, because the x distribution is mound-shaped and symmetric
and σ is unknown.
No, the x distribution is skewed left.
No, the...

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(a) Is it appropriate to use a Student's t
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Yes, because the x distribution is mound-shaped and
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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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