Question

Suppose that you had consumer group wanted to test to see if weight of participants in...

Suppose that you had consumer group wanted to test to see if weight of participants in a weight loss program changed (up or down). They computed a 95% confidence interval of the result (-4.977, 2.177).

Suppose that we had a significance test with the following hypothesis:

Ho: population mean weight loss = 0

Ha: population mean weight loss does not equal 0

What do we know about the p-value for the test?

It would be greater than 0.05.
It would be equal to 0.05.
It would be less than 0.05.
Can't be determined.

Answer is not "It would be greater than 0.05"

Homework Answers

Answer #1

Solution

When the p value is less than the significance level , then we reject the null hypothesis and the test is said to be "significant".

When the p value is grater than equal to the significance level , then we fail to reject the null hypothesis and the test is said to be "not significant".

In given example , we are given a 95% confidence interval.

c = 95% = 0.95

= 1 - c = 0.05

Also , it is given that the test is significant.

For significant test , the p value is less than .

So the answer is "It would be less than 0.05."

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Suppose that you had consumer group wanted to test to see if weight of participants in...
Suppose that you had consumer group wanted to test to see if weight of participants in a weight loss program changed (up or down). They computed a 95% confidence interval of the result (-4.977, -2.177). Suppose that we had a significance test with the following hypothesis: Ho: population mean weight loss = 0 Ha: population mean weight loss does not equal 0 What do we know about the p-value for the test? Group of answer choices Can't be determined. It...
) Suppose we wanted to evaluate the effect of a diet program on weight loss (in...
) Suppose we wanted to evaluate the effect of a diet program on weight loss (in pounds) using four participants. If µ = 19 and σ = 13, and M = 9, conduct a one-tailed Z-test. B) What can we conclude about the effect of this treatment and explain the result clearly in the context of the study.
A clinic offers a weight-reduction program. A review of its records revealed the following weight losses,...
A clinic offers a weight-reduction program. A review of its records revealed the following weight losses, in pounds, for a random sample of 29 of its clients after the program: 6 14 0 5 3 2 3 0 3 0 5 7 0 4 8 7 6 5 7 6 8 0 0 0 4 2 0 5 3 Goodness-of-Fit Test Shapiro-Wilk W Test W Prob<W 0.899470 0.0095* Note: Ho = The data is from the Normal distribution. Small p-values...
A new​ weight-loss program claims that participants will lose an average of more than 10 pounds...
A new​ weight-loss program claims that participants will lose an average of more than 10 pounds after completing it. The data table shows the weights of five individuals before and after the program. 1 2 3 4 5 weight before 264 220 285 264 195 weight after 240 223 267 250 175 We need to test the hypothesis that the population mean of differences exceed 10.  That is, H0:   H1:   .   Use 5% level of significance. Find the test statistic. (Provide two  significant...
a sample of 17,taken from a normally distributed population has a sample mean of 96.36and a...
a sample of 17,taken from a normally distributed population has a sample mean of 96.36and a sample standard deviation of 6.30.Suppose that we have adopted the null hypothesis that the actual population mean is greater than or equal to 99. that is Ho is that ≥99 and we want to test the alternative hypothesis Ha that µ <99 with level of significance a= 0.1 a ) what type of test would be appropriate on this situation b) what is the...
A diet center claims that it has the most effective weight loss program in the region....
A diet center claims that it has the most effective weight loss program in the region. Its advertisement says, "Participants in our program really lose weight." Five clients of this program are weighed on the first day of the diet and then three months later. Client Weight on First Day of Diet Weight Three Months Later 1 151 147 2 201 195 3 152 151 4 190 185 5 190 192 a. Specify the null and alternative hypotheses to test...
(Round all intermediate calculations to at least 4 decimal places.) An advertisement for a popular weight...
(Round all intermediate calculations to at least 4 decimal places.) An advertisement for a popular weight loss clinic suggests that participants in its new diet program lose, on average, more than 9 pounds. A consumer activist decides to test the authenticity of the claim. She follows the progress of 17 women who recently joined the weight reduction program. She calculates the mean weight loss of these participants as 10.6 pounds with a standard deviation of 2.7 pounds. Use Table 2....
Suppose that a group of researchers is planning to test a new weight loss supplement. They...
Suppose that a group of researchers is planning to test a new weight loss supplement. They have selected a random sample of 30 people who are trying to lose weight and plan to measure the amount of weight lost after one month of using the supplement. Assume that the researchers know from prior experiments that the standard deviation of weight lost in one month, σ, is 1.1 lb. To show that the supplement is effective, they plan to use a...
Suppose the population proportion of computer keyboards that fail is p. To infer about p, a...
Suppose the population proportion of computer keyboards that fail is p. To infer about p, a manufacturer randomly selected 60 keyboards and determined that 6 had failed. (a) Find an approximate 95% Wald confidence interval for p. (b) Find an approximate 95% Agresti-Coull confidence interval for p. (e) Suppose we wish to test H0: p = 0:50 versus Ha: p does not equal 0:50 at the alpha = 0:05 significance level. Based upon your answer in 9.3(b), will the p−value...
A simple random sample generated 12 male and 18 female adults identified by their primary care...
A simple random sample generated 12 male and 18 female adults identified by their primary care physicians as being over-weight. These adults were fed a special high protein diet for a month and had a sample mean weight loss of 8 pounds with a sample standard deviation of 3.7 pounds. We would like to conduct a test to determine whether the average weight loss for all adults is less than 10 pounds at a 1% level of significance. What is...