Textbook ExpertVerified Tutor
23 Nov 2021
Given information
Instructions: For the following ten exercises,
Hypothesis testing: For the following ten exercises, answer each question.
State the null and alternate hypotheses.
State the p-value.
. State alpha.
. What is your decision?
Write a conclusion.
Answer any other questions asked in the problem.The student academic group on a college campus claims that freshman students study at least 
hours per day, on average. One Introduction to Statistics class was skeptical. The class took a random sample of 
freshman students and found a mean study time of 
minutes with a standard deviation of 
minutes.
hours per day, on average. One Introduction to Statistics class was skeptical. The class took a random sample of freshman students and found a mean study time of minutes with a standard deviation of minutes.Step-by-step explanation
Step 1.
We are given to use a left-tailed test. That’s why the alternative hypothesis has 
sign. Reject the null hypothesis if 
.
The null hypothesis states that on average, freshman students study at least hours or 
minutes.
In symbols:
The alternative hypothesis states that on average, freshman students study less than hours or minutes.
In symbols:
Step-by-step procedure to obtain the test statistic and 
value using the 
calculator:
- Press Stat > EDIT > Edit.
- Enter data in L1.
- Press Stat > TESTS > 2: T-Test…
- Enter data as shown below:
- Highlight Calculate and press enter.
Output using the calculator is given below
Since the null hypothesis is not rejected, we can conclude that on average, freshman students study at least hours or minutes.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 62a
- Problem 62b
- Problem 62c
- Problem 62d
- Problem 62e
- Problem 62f
- Problem 62g
- Problem 62h
- Problem 62i
- Problem 62j
- Problem 63
- Problem 64
- Problem 65
- Problem 66a
- Problem 66b
- Problem 66c
- Problem 66d
- Problem 66e
- Problem 66f
- Problem 66g
- Problem 66h
- Problem 66i
- Problem 66j
- Problem 67a
- Problem 67b
- Problem 68
- Problem 69
- Problem 70
- Problem 71
- Problem 72
- Problem 73a
- Problem 73b
- Problem 73c
- Problem 73d
- Problem 73e
- Problem 73fi
- Problem 73fii
- Problem 73fiii
- Problem 73g
- Problem 73h
- Problem 73i
- Problem 73ji
- Problem 73jii
- Problem 73jiii
- Problem 74
- Problem 75
- Problem 76
- Problem 77
- Problem 78
- Problem 79
- Problem 80
- Problem 81
- Problem 82
- Problem 83
- Problem 84
- Problem 85
- Problem 86
- Problem 87
- Problem 88
- Problem 89
- Problem 90
- Problem 91
- Problem 92
- Problem 93
- Problem 94
- Problem 95
- Problem 96
- Problem 97
- Problem 98
- Problem 99
- Problem 100
- Problem 101
- Problem 102
- Problem 103
- Problem 104a
- Problem 104b
- Problem 104c
- Problem 104d
- Problem 105a
- Problem 105b
- Problem 105c
- Problem 105d
- Problem 106a
- Problem 107
- Problem 108
- Problem 109
- Problem 110
- Problem 111
- Problem 112
- Problem 113
- Problem 114
- Problem 115
- Problem 116