the null hypothesis is assumed to be true (i.e. given the benefit of the doubt except...

the null hypothesis is assumed to be true (i.e. given the benefit of the doubt except if the evidence is strong enough to reject it. rue or false

Expert Solution

TOPIC:Testing of hypothesis.

orchestra answered 1 year ago

A null hypothesis is not rejected at a given level of significance. As the assumed value...

A null hypothesis is not rejected at a given level of significance. As the assumed value of the mean gets further away from the true population mean, the Type II error will

Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe...

Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. The principal of a middle school claims that the mean test score of the seventh-graders at his school is higher than 72.1. You wish to test this claim at the 0.05 level of significance. The mean score for a random sample of 101 seventh-graders is 75.7 with a standard...

When we reject a null hypothesis, we are certain that the alternative hypothesis is true. True...

When we reject a null hypothesis, we are certain that the alternative hypothesis is true. True or False

True or False A. In hypothesis testing, if you fail to reject the null hypothesis, then...

True or False A. In hypothesis testing, if you fail to reject the null hypothesis, then you have proven the null hypothesis to be true. B. If you are more concerned about a type I error than a type II error in a hypothesis test, it would be better to use ∝= .01 than ∝= .10. C. If you have complete information for a population (from a census), it would be unnecessary and inappropriate to carry out a hypothesis test...

For the following Hypothesis Tests below : (a) State the null hypothesis, if not given. ...

For the following Hypothesis Tests below : (a) State the null hypothesis, if not given. (b) State the decision rule. (c) Compute the value of the test statistic. (d) What is your decision regarding H0? (e) Your conclusion. Exercise 6: A stockholder at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6 percent with a standard deviation of 3.9 percent. The mean rate of return on...

10. In ANOVA, if the null hypothesis is true, the Fobt value will be _____. ...

10. In ANOVA, if the null hypothesis is true, the Fobt value will be _____. a. 0 b. 1 c. a negative number d. a high number 11. The null hypothesis for the one-way 2 is _____. a. expected frequencies equal observed frequencies b. expected frequencies are equal to each other c. observed frequencies are equal to each other d. fos ? fes Imagine that a general estimate of elementary-school students who have lice is 8%....

A Type 1 error is defined as: Rejecting a False Null Hypothesis Rejecting a True Null...

A Type 1 error is defined as: Rejecting a False Null Hypothesis Rejecting a True Null Hypothesis Failing to Reject a False Null Hypothesis Failing to Reject a True Null Hypothesis b.) The probability for which a Type 1 error may occur in a hypothesis test is referred to as: Z-value Test Statistic Critical Value Level of Significance c.) A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z...

Which of the following is TRUE? A) The statement of the null hypothesis never contains an...

Which of the following is TRUE? A) The statement of the null hypothesis never contains an equality. B) The alternative hypothesis represents the conclusion for which evidence is sought. C) The computed test statistic is also known as the critical value. D) An increase in the risk of type I error also increases the risk of a type II error.

1) Which of the following statements are true? If the null hypothesis is rejected at the...

1) Which of the following statements are true? If the null hypothesis is rejected at the 1% level of significance, then it will be rejected at 5% of level of significance. For a given confidence level, halving the margin of error requires a sample twice as large. For a specified confidence level, larger samples provide smaller margins of error. a) Ionly b) IIonly c) IIIonly d) IandIIonly e) IandIIIonly 2) Suppose that you take random samples of size n from...

Is this a true statement why or why not? Rejecting the null hypothesis that the population...

Is this a true statement why or why not? Rejecting the null hypothesis that the population slope is equal to zero or no relationship exists concludes that the population slope is, indeed, not equal to zero; and, therefore, there is a significant relationship between x and y. That being said, this information simply provides us with the measure of the strength of the relationship between the two variables. It informs us of how the variables are correlated, if they are...

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