Ciccarelli: Psychology_5 (5th Edition)
Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN: 9780134477961
Author: Saundra K. Ciccarelli, J. Noland White
Publisher: PEARSON
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The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.54 liters. A health campaign promotes the consumption of at least 2.0 liters per day. A sample of 10 adults
after the campaign shows the following consumption in liters:
1.35
1.68
HO: US
H1:p>
1.76
Reject HO if t>
2.00
1.84
Value of the test statistic
1.84
At the 0.050 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value.
57
Click here for the Excel Data File
a. State the null hypothesis and the alternate hypothesis. (Round your answers to 2 decimal places.)
1,50
b. State the decision rule for 0.050 significance level. (Round your answer to 3 decimal places.)
1.82
c. Compute the value of the test statistic. (Round your intermediate and final answer to 3 decimal places.)
d. At the 0.050 level, can we conclude that water consumption has increased?
HO and conclude that water consumption has
en
AUO
14
1.86
a
1.60
O
tv
NOT
C
F6
2
MacBook Air
F7
13
DII
F8
A
F9
W
F10
X
e
F11
expand button
Transcribed Image Text:The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.54 liters. A health campaign promotes the consumption of at least 2.0 liters per day. A sample of 10 adults after the campaign shows the following consumption in liters: 1.35 1.68 HO: US H1:p> 1.76 Reject HO if t> 2.00 1.84 Value of the test statistic 1.84 At the 0.050 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value. 57 Click here for the Excel Data File a. State the null hypothesis and the alternate hypothesis. (Round your answers to 2 decimal places.) 1,50 b. State the decision rule for 0.050 significance level. (Round your answer to 3 decimal places.) 1.82 c. Compute the value of the test statistic. (Round your intermediate and final answer to 3 decimal places.) d. At the 0.050 level, can we conclude that water consumption has increased? HO and conclude that water consumption has en AUO 14 1.86 a 1.60 O tv NOT C F6 2 MacBook Air F7 13 DII F8 A F9 W F10 X e F11
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