Question

Using traditional methods, it takes 8.78.7 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 2727 students and observed that they had a mean of 8.58.5 hours with a variance of 2.562.56. A level of significance of 0.10.1 will be used to determine if the technique performs differently than the traditional method. Assume the population distribution is approximately normal. State the null and alternative hypotheses.

Answer #1

Using traditional methods it takes 94.094.0 hours to receive a
basic flying license. A new license training method using Computer
Aided Instruction (CAI) has been proposed. A researcher used the
technique on 7070 students and observed that they had a mean of
92.092.0 hours. Assume the standard deviation is known to be
6.06.0. Is there evidence at the 0.050.05 level that the technique
performs differently than the traditional method?
Step 1 of 5:
Enter the hypotheses:
Using traditional methods it...

Using traditional methods, it takes 9.6 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 16 students and observed that they had a mean of 9.5
hours with a standard deviation of 1.6. A level of significance of
0.1. will be used to determine if the technique performs
differently than the traditional method. Assume the population
distribution is approximately normal. State the null...

Using traditional methods, it takes 11.5 hours to receive a
basic driving license. A new license training method using Computer
Aided Instruction (CAI) has been proposed. A researcher used the
technique with 17 students and observed that they had a mean of
11.9 hours with a standard deviation of 1.7. A level of
significance of 0.05 will be used to determine if the technique
performs differently than the traditional method. Assume the
population distribution is approximately normal. State the null...

Using traditional methods, it takes 9.5 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 13 students and observed that they had a mean of 9.3
hours with a variance of 3.61. A level of significance of 0.05 will
be used to determine if the technique performs differently than the
traditional method. Assume the population distribution is
approximately normal.
Make the decision to...

Using traditional methods, it takes 8.7 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 28 students and observed that they had a mean of 9.2
hours with a variance of 3.24. A level of significance of 0.05 will
be used to determine if the technique performs differently than the
traditional method. Assume the population distribution is
approximately normal. Make the decision to...

Using traditional methods, it takes 97 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 90 students and observed that they had a mean of 99
hours. Assume the standard deviation is known to be 7. A level of
significance of 0.02 will be used to determine if the technique
performs differently than the traditional method. Is there
sufficient evidence to support the...

Using traditional methods, it takes 9.4 hours
to receive a basic driving license. A new license training method
using Computer Aided Instruction (CAI) has been proposed. A
researcher used the technique with 24 students and
observed that they had a mean of 9.6 hours with a
standard deviation of 1.4. A level of significance
of 0.1 will be used to determine if the technique
performs differently than the traditional method. Assume the
population distribution is approximately normal. Find the value...

Using traditional methods, it takes 93 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 160 students and observed that they had a mean of 92
hours. Assume the variance is known to be 64 . A level of
significance of 0.02 will be used to determine if the technique
performs differently than the traditional method. Find the value of
the test statistic....

Using traditional methods, it takes 95 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 170 students and observed that they had a mean of 94
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significance of 0.01 will be used to determine if the technique
performs differently than the traditional method. Find the value of
the test statistic....

Using traditional methods, it takes 101 hours to receive a basic
driving license. A new license training method using Computer Aided
Instruction (CAI) has been proposed. A researcher used the
technique with 100 students and observed that they had a mean of
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significance of 0.05 will be used to determine if the technique
performs differently than the traditional method. Find the value of
the test statistic. Round...

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