Question

Using traditional methods it takes 101 101 hours to receive an advanced flying license. A new training technique using Computer Aided Instruction (CAI) has been proposed. A researcher believes the new technique may reduce training time and decides to perform a hypothesis test. After performing the test on 190 190 students, the researcher decides to reject the null hypothesis at a 0.05 0.05 level of significance. What is the conclusion?

There IS sufficient evidence. ?

There is Not sufficient evidence?

Answer #1

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**Answer:**

**As the null
hypothesis ire rejected here, there is sufficient evidence to
conclude that the rechnique lengthens the training
time**

Using traditional methods it takes 107 hours to receive an
advanced flying license. A new training technique using Computer
Aided Instruction (CAI) has been proposed. A researcher believes
the new technique may lengthen training time and decides to perform
a hypothesis test. After performing the test on 120 students, the
researcher decides to reject the null hypothesis at a 0.10 level of
significance. What is the conclusion?

Using traditional methods it takes 93 hours to receive an
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a hypothesis test. After performing the test on 180 students, the
researcher decides to reject the null hypothesis at a 0.10 level of
significance.
What is the conclusion?

xUsing traditional methods it takes 103 hours to receive an
advanced driving license. A new training technique using Computer
Aided Instruction (CAI) has been proposed. A researcher believes
the new technique may reduce training time and decides to perform a
hypothesis test. After performing the test on 170 students, the
researcher fails to reject the null hypothesis at a 0.10 level of
significance. What is the conclusion?
A. There is not sufficient evidence at the 0.10 level of
significance that...

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sufficient evidence to support the...

Using traditional methods it takes 94.094.0 hours to receive a
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6.06.0. Is there evidence at the 0.050.05 level that the technique
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Step 1 of 5:
Enter the hypotheses:
Using traditional methods it...

Using traditional methods it takes 9292 hours to receive an
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technique on 7070 students and observed that they had a mean of
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there evidence at the 0.050.05 level that the technique lengthens
the training time?
Step 1 of 6 :
State the null and alternative hypotheses.

Using traditional methods it takes 102 hours to receive an
advanced flying license. A new training technique using Computer
Aided Instruction (CAI) has been proposed. A researcher used the
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Step 2 of 6 : Find the value of the test statistic.
Round your answer...

Using traditional methods it takes 101 hours to receive an
advanced flying license. A new training technique using Computer
Aided Instruction (CAI) has been proposed. A researcher used the
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hours. Assume the population standard deviation is known to be 6 .
Is there evidence at the 0.02 level that the technique performs
differently than the traditional method?
Step 1 of 6: State the null and alternative hypotheses....

Using traditional methods it takes 107 hours to receive an
advanced driving license. A new training technique using Computer
Aided Instruction (CAI) has been proposed. A researcher used the
technique on 190 students and observed that they had a mean of 108
hours. Assume the population standard deviation is known to be 6.
Is there evidence at the 0.05 level that the technique lengthens
the training time?
Find the value of the test statistic. Round to two decimal
places. Specify...

Using traditional methods, it takes 103 hours to receive a basic
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significance of 0.05 will be used to determine if the technique
performs differently than the traditional method. Is there
sufficient evidence to support the claim...

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