Question

Suppose that before we conduct a hypothesis test we pick a significance level of ?. When the test is conducted, we get a p-value of 0.023. Given this p-value, we

a. can reject the null hypothesis for any significance level, ?, greater than 0.023.

b. cannot reject the null hypothesis for a significance level, ?, greater than 0.023.

c. can reject the null hypothesis for a significance level, ?, less than 0.023.

d. draw no conclusion about the null hypothesis.

Answer #1

Answer Option A. Can reject the null hypothesis for any any significance level, , greater than 0.023.

Explation: in statistical inference testing we need (The level of significane, i.e. the chance of commiting type-I error ) and P-value which varies between 0 to 1. and p-value shows evidence against the null hypothesis, if the p-value is low then it shows stronger evidence favouring alternative hypothesis. in hypotisis testing we compare both the with P - value

if
> P-Value H_{0} (Null Hypothesis is rejected) and
Alternative Hypothesis is accepted

if
< P-Value H_{0} (Null Hypothesis is accepted)

as per the question P-value is 0.023, and if any significance level > 0.023, then we can rejecte the null hypothesis and accept the alternative hypothesis.

We would like to conduct a hypothesis test at the 10% level of
significance to determine whether the true mean score of all
players in a bowling league differs from 150. The mean and standard
deviation of the scores of 12 randomly selected players are
calculated to be 162 and 17, respectively. Scores of all players in
the league are known to follow a normal distribution. Using the
critical value method, the decision rule is to reject H0 if the...

we would like to conduct a hypothesis test at the 10% level of
significance to determine whether the true mean score of all
players in a bowling league differs from 150. the mean and standard
deviation of the scores of 12 randomly selected players are
calculated to be 162 and 17, respectively. Scores of all players in
the league are known to follow a normal distribution. using
critical value method, the decision rules to reject Ho if the value
of...

You perform a hypothesis test for a hypothesized population mean
at the 0.01 level of significance. Your null hypothesis for the
two-sided test is that the true population mean is equal to your
hypothesized mean. The two-sided p-value for that test is 0.023.
Based on that p-value... A. you should accept the null hypothesis.
B. the null hypothesis cannot be correct. C. you should reject the
null hypothesis. D. you should fail to reject the null
hypothesis.

In order to conduct a hypothesis test for the population mean, a
random sample of 24 observations is drawn from a normally
distributed population. The resulting sample mean and sample
standard deviation are calculated as 13.9 and 1.6, respectively.
(You may find it useful to reference the appropriate
table: z table or t
table).
H0: μ ≤ 13.0 against
HA: μ > 13.0
a-1. Calculate the value of the test statistic.
(Round all intermediate calculations to at least 4 decimal...

In order to conduct a hypothesis test for the population mean, a
random sample of 20 observations is drawn from a normally
distributed population. The resulting sample mean and sample
standard deviation are calculated as 10.5 and 2.2, respectively.
(You may find it useful to reference the appropriate table: z table
or t table).
H0: μ ≤ 9.6 against HA: μ > 9.6
a-1. Calculate the value of the test statistic. (Round all
intermediate calculations to at least 4 decimal...

In order to conduct a hypothesis test for the population mean, a
random sample of 28 observations is drawn from a normally
distributed population. The resulting sample mean and sample
standard deviation are calculated as 17.9 and 1.5, respectively.
(You may find it useful to reference the appropriate
table: z table or t
table).
H0: μ ≤ 17.5 against
HA: μ > 17.5
a-1. Calculate the value of the test statistic.
(Round all intermediate calculations to at least 4 decimal...

Suppose that in a certain hypothesis test the null hypothesis is
rejected at the .10 level; it is also rejected at the .05 level;
however it cannot be rejected at the .01 level. The most accurate
statement that can be made about the p-value for this test is
that:
p-value = 0.01.
p-value = 0.10.
0.01 < p-value < 0.05.
0.05 < p-value < 0.10.
Complete the sentence: If we do not reject the null hypothesis,
we conclude that _____....

On your first day on the job, your boss asks you to conduct a
hypothesis test about the mean dwell time of a new type of UAV.
Before you arrived, an experiment was conducted on n= 5 UAVs (all
of the new type) resulting in a sample mean dwell time of y-bar=
9.4 ℎours. The goal is to conclusively demonstrate, if possible,
that the data supports the manufacturer’s claim that the mean dwell
time is greater than 10 hours. Given...

If the P-value of a
hypothesis test is 0.0330 and the level of significance is α =
0.05, then the conclusion you should draw is to fail to reject the
null hypothesis.
True
False

n order to conduct a hypothesis test for the population
proportion, you sample 290 observations that result in 87
successes. (You may find it useful to reference the appropriate
table: z table or t table) H0: p ≥ 0.35; HA: p < 0.35.
a-1. Calculate the value of the test statistic. (Negative value
should be indicated by a minus sign. Round intermediate
calculations to at least 4 decimal places and final answer to 2
decimal places.)
a-2. Find the p-value....

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 26 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago