Question

Which of the following statements about the null and the alternative hypotheses is false?

1-You want to prove the alternative hypothesis.

2-The null and the alternative hypotheses should be exhaustive.

3-You want to prove the null hypothesis.

4-Hypotheses can be directional or non-directional.

Answer #1

Which of the following statements about the null and the alternative hypotheses is false?

- Correct Answer is

Option **3-You want to prove the null
hypothesis.**

The reasoning behind it is given below:

While doing any hypothesis testing we form two exhaustive conditions called The null hypothesis and alternative hypothesis

The null hypothesis assumes that whatever you are trying to prove did not happen

The alternative hypothesis is usually the hypothesis you are trying to prove

Please answer True or False for the following statements:
1.) In hypothesis testing, if the null hypothesis is rejected,
then the alternative or motivated hypothesis must also be
rejected.
2.) Under certain conditions, binomial distributions can be
approximated by normal distributions.
3.) Using a normal distribution to approximate binomial
probabilities is extremely accurate, but takes an excessive amount
of time and should be avoided.
4.) A bell-shaped curve is still normal, even if the mean,
median, and mode are not...

Perform a hypothesis for the null and alternative
hypotheses:
??:?? =? ??:?? <?
The following is the sample information.
?̅=?.? ?? =?.? ?=?? ?=?.??
a. (1 point) Calculate the appropriate test statistic, p-value,
and give a general conclusion of reject or fail to reject the null
hypothesis based on the significance level. Show all work
b. (1 point) Now suppose you know ?? = 1.2. Calculate the
appropriate test statistic, p-value and give a general conclusion
of reject or fail...

Think about the context of the claim.Determine whether you want
to support or reject the claim.
a.State the null and alternative hypotheses in words.
b.Write the null and alternative hypotheses in appropriate
symbols
c.Describe in words Type I error (the consequence of rejecting a
true null hypothesis.)
d.Describe in words Type II error (the consequence of failing to
reject a false null hypothesis.)
You represent a chemical company that is being sued for paint
damage to automobiles. You want to...

True or False: Null and Alternative Hypotheses can never refer
to sample statistics.
True or False: Type I error and Type II error canbothbe
controlled by increasing the sample size.
True or False: The pooled variance t-test can never be used when
you have dependent sampling.

: Identify IV, DV, and hypotheses and evaluate
the null hypothesis for an independent samples t test.
Data: Use the information from Problem Set
3.7.
Instructions: Complete the following:
Minutes of practice:
Group 1: 34, 25, 4, 64, 14, 49, 54
Group 2: 24, 78, 59, 68, 84, 79,
57
a. Identify the IV and DV
in the study.
b. State the null
hypothesis and the directional (one-tailed) alternative
hypothesis.
c. Can you reject the null
hypothesis at α =...

Which of the following statements about the structure of
double-stranded DNA is FALSE? 1. DNA is stabilized primarily by
H-bonding between the bases. 2. Only non-covalent forces stabilize
the helix so that the DNA can unwind during replication and
transcription. 3. The phosphodiester backbone interacts with Mg2+
in the cell. 4. Some groups of the bases are exposed in the grooves
of double-stranded DNA.

Exercise 2. Given the following null and alternative
hypotheses
?0: ?1≥ ?2
?a:?1<?2
together with the following sample information
Sample 1
Sample 2
n1= 18
n2= 18
x1= 565
x2= 578
x1= 28.9
s2= 26.3
a-Assuming that the populations are
normally distributed with equal variances, test at the 0.10 level
of significance whether you would reject the null hypothesis based
on the sample information. Use the test statistic approach.
b-Assuming that the populations are
normally distributed with equal variances, test...

Which of the following statements about cost drivers in ABC
systems is FALSE?
1. cost driver for a cost pool should have a cause and effect
relationship to the costs in the pool
2. the cost drivers should be duration drivers
3. 100% correlation between the cost driver activity and the
variation in the cost is not necessary
4. the cost driver activities can be quantified

Create the null and alternative hypotheses for the following
research problems! If you are taller, you are likely heavier!

The null and alternative hypotheses for z -test refer to which
of the following?
A. The population before the treatment.
B. The sample before the treatment.
C. The sample after the treatment.
D. The population after the treatment.

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