a two tailed test is performed at a 5% level of significance. THE value is determined...
a two tailed test is performed at a 5% level of significance. THE value is determined to be 0.04 the null hypothesis a) has been designed incorrect 2) should not be rejected 3)may or may not be rejected depending on sample size 4. should be rejected
Homework Answers
p - Value is less than the significance level of 0.05 so we should reject the null hypothesis.
Option 4 is correct.
Add Answer to:
a two tailed test is performed at a 5% level of significance.
THE value is determined...
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for ...
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b.
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b.
Multiple Choice: In a two tailed test if the p value is less than the significance...
Multiple Choice: In a two tailed test if the p value is less than the significance level alpha, then: A. H0 is not rejected B. additional information needed and no conclusion can be reached whether H0 is rejected or not C. H0 may or may not be rejected depending on the sample size D. H0 is rejected
A hypothesis test is performed at the α = 0.05 level of significance. The p-value is...
A hypothesis test is performed at the α = 0.05 level of significance. The p-value is determined to be 0.03. Therefore, we know that we would _______________. either reject or fail to reject the null hypothesis, depending on the value of the test statistic. reject the null hypothesis know that a 99% confidence interval would contain the value specified in the null hypothesis. fail to reject the null hypothesis
5.in a lower one-tailed hypothesis test, chosen level of significance = 0.10, sample size = 55,...
5.in a lower one-tailed hypothesis test, chosen level of significance = 0.10, sample size = 55, and t-test statistic = -1.76. Which of the following is the conclusion? A) This is a high probability and the conclusion is difficult. B) The null hypothesis is rejected. C) There are many sampling errors. D) The null hypothesis cannot be rejected. 4. While checking for linearity by examining the residual plot, the residuals must: A) exhibit a linear trend. B) form a parabolic...
A two-tailed test of population mean is performed at 0.20 level of significance with unknown σ....
A two-tailed test of population mean is performed at 0.20 level of significance with unknown σ. Sample size is 20. Find the critical value(s). -0.842 1.328 and -1.328 -1.282 and 1.282 -0.861
For a one-tailed hypothesis test (upper tail) the p-value is computed to be 0.034. If the...
For a one-tailed hypothesis test (upper tail) the p-value is computed to be 0.034. If the test is being conducted at 95% confidence, the null hypothesis Select one: a. is rejected. b. is not rejected. c. could be rejected or not rejected depending on the value of the mean of the sample. d. could be rejected or not rejected depending on the sample size.
A P-value of 0.12 is calculated on a hypothesis test with a significance level set at...
A P-value of 0.12 is calculated on a hypothesis test with a significance level set at 0.01. Which of the following is the correct conclusion for the test? a. Claim the null hypothesis is true b. Fail to reject the null hypothesis c. Reject the null hypothesis d. Claim the alternative hypothesis is true Which of the following are not requirements for using the t-distribution for a hypothesis test concerning μ? (More than one answer may be correct.) a. Sample...
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test...
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test is 0.04. For what significance levels (values of a) can the null hypothesis be rejected? For a = 0.04 For all values of a greater than or equal to 0.04 For a = 0.05, 0.10 For all values of a smaller than 0.04
A friend has performed a significance test of the null hypothesis that two means are equal....
A friend has performed a significance test of the null hypothesis that two means are equal. His report states that the null hypothesis is rejected in favor of the alternative the first mean is larger than the second. In a presentation on his work, he notes that the first sample mean was larger than the second mean and this is why he chose this particular one-sided alternative. (a) Explain what is wrong with your friend's procedure and why. We should...
Read the z statistic from the normal distribution table and circle the correct answer. A one-tailed...
Read the z statistic from the normal distribution table and circle the correct answer. A one-tailed test (upper tail) at a 123 level of significance, a. 1.645 b. 1.54 C. 1.96 O d. 1.16 When the hypotheses Ho μ z 100 and Ha μ < 100 are being tested at a level of significance of o, the null hypothesis will be rejected if the test statistic z is a. -za O c. 100 For a one-tailed test (upper tail) with...
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b.
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b.
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test is 0.04. For what significance levels (values of a) can the null hypothesis be rejected? For a = 0.04 For all values of a greater than or equal to 0.04 For a = 0.05, 0.10 For all values of a smaller than 0.04
Read the z statistic from the normal distribution table and circle the correct answer. A one-tailed test (upper tail) at a 123 level of significance, a. 1.645 b. 1.54 C. 1.96 O d. 1.16 When the hypotheses Ho μ z 100 and Ha μ < 100 are being tested at a level of significance of o, the null hypothesis will be rejected if the test statistic z is a. -za O c. 100 For a one-tailed test (upper tail) with...
Most questions answered within 3 hours.
-
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 1 hour ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 3 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 5 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 5 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 7 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 7 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 7 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 7 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 7 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 7 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 7 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 7 hours ago