The Bath Heritage Days, which take place in Bath, Maine, have been popular for, among other things, an eating contest. In 2009, the contest switched from blueberry pie to a Whoopie Pie...

1 answer below »

The Bath Heritage Days, which take place in Bath, Maine, have been popular for, among other things, an eating contest. In 2009, the contest switched from blueberry pie to a Whoopie Pie (www.timesrecord.com), which consists of two large, chocolate cake–like cookies filled with a large amount of vanilla cream. Sixty-five randomly selected adults are chosen to eat a 1-pound Whoopie Pie, and the average time for 59 adults (out of these 65) is 127.10 seconds. Based on other Whoopie Pie–eating contests throughout the United States, suppose that the standard deviation of the times taken by all adults to consume 1-pound Whoopie pies are known to be 23.80 seconds.


a. Find the p-value for the test of hypothesis with the alternative hypothesis that the mean time to eat a 1-pound Whoopie Pie is more than 2 minutes. Will you reject the null hypothesis at Explain. What if



b. Test the hypothesis of part a using the critical-value approach. Will you reject the null hypothesis at




Answered Same DayDec 25, 2021

Answer To: The Bath Heritage Days, which take place in Bath, Maine, have been popular for, among other things,...

Robert answered on Dec 25 2021
125 Votes
transtutors.com/questions/-2080395.htm
in
A Test: µ > 120 with normal distn
Hypothesis test:
H0
: µ ≤ 120 (Null Hypothesis, H0 : µ = 120 is also correct)
Ha : µ > 120 (Alternative Hypothesis, also called H1)
This is upper tailed test (one tailed test).
x = 127.1
σ = 23.8
n = 59
Significance Level, α = 0.02
Test statistic z? = x− µ
σ/

n
Test Statistic, z? = 127.1− 120
23.8/

59
≈ 2.291434 ≈ 2.29
Test Statistic, z? = 2.29
P-value is in direction of Alternative hypothesis.
Since Ha : µ > 120, P-value= P (Z > 2.29)
P-value is Area to the right of test statistic = 2.29
P − value = 0.0110
test statistic = 2.29
0
P-value = P (Z > 2.29) = 0.0110(from z-table)
P-value = 0.0110
Decision Rule (rejection criteria): Reject H0 if p-value < α
Decision: Since 0.0110...
SOLUTION.PDF

Answer To This Question Is Available To Download

Related Questions & Answers

More Questions »

Submit New Assignment

Copy and Paste Your Assignment Here