HomeworkLib
Question

A sample size of 22 with a mean of 8 and a standard deviation of 12.5...

A sample size of 22 with a mean of 8 and a standard deviation of 12.5 test the hypothesis that the value of the population mean is 70 against the assumption that it is more than 70. Use the 0.025 significant levels.

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A sample size of 22 with a mean of 8 and a standard deviation of 12.5...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to...

    A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ , of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. sample mean = 24.4, s = 9.2, n=25, H0: μ = 26, Ha : μ , 26, α = 0.05 Options: A: Test statistic: t = -0.87. P-value = 0.1922....

  • A sample mean, sample standard deviation, and sample size are given. Use the one meant test...

    A sample mean, sample standard deviation, and sample size are given. Use the one meant test to perform the required hypothesis test about the mean, , of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. x-22,298, s=14200, n = 17, HO: P = 30,000, Ha# 30,000 a -0.05. Test statistic: 224. P.value 0.0200. Reject the null hypothesis. There is sufficient evidence to conclude that the...

  • A sample mean, sample size, and population standard deviation are given. Use the one-mean z-test to...

    A sample mean, sample size, and population standard deviation are given. Use the one-mean z-test to perform the required hypothesis test at the given significance level. Use the P-value approach. x̄ = 259, n = 15, σ = 19,   H 0: μ = 250, Ha :  μ   > 250,  α  = 0.01

  • A simple random sample of size n=40 is drawn from a population. The sample mean is...

    A simple random sample of size n=40 is drawn from a population. The sample mean is found to be 106.9​,and the sample standard deviation is found to be 15.1. Is the population mean greater than 100 at the α=0.025 level of​ significance? A) Determine the null and alternative hypotheses. B) Compute the test statistic C) Determine the​ P-value. ​(Round to three decimal places as​ needed.) D) What is the result of the hypothesis​ test? ____ the null hypothesis because the​...

  • A sample​ mean, sample​ size, and sample standard deviation are provided below. Use the​ one-mean t-test...

    A sample​ mean, sample​ size, and sample standard deviation are provided below. Use the​ one-mean t-test to perform the required hypothesis test at the 1​% significance level. x=22 s=6 n=15 H0: M=24 Ha: M<24 The test statistic is t=

  • section 9.5 A sample mean, sample size, and sample standard deviation are provided below. Use the...

    section 9.5 A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 5% significance level x = 23, s = 6, n = 32, Ho H = 27, H.: H = 27 Click here to view a partial table of values of The test statistic ist=Q (Round to two decimal places as needed.) A sample mean, sample size, and sample standard deviation are provided below. Use...

  • A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test...

    A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 10% significance level. x=37, n = 31, σ=9, H0 : μ=39, Ha: μ<39 EB Click here to view a partial table of areas under the standard normal curve. The test statistic is z- (Round to two decimal places as needed.)

  • A sample mean, sample size and population standard deviation are provided below. Use the one-mean z-test...

    A sample mean, sample size and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 10% significance level. x=27, n=25, =8, Ho =25 Hà #25 The test statistic is z= (Round to two decimal places as needed) Identify the critical value(s) Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed) O A. The critical values are +2/2+ OB. The...

  • Sample mean, x ̅ = 2.26 nM, sample standard deviation, s = 1.18 nM, and sample...

    Sample mean, x ̅ = 2.26 nM, sample standard deviation, s = 1.18 nM, and sample size, n = 12. in this area there is a natural amount of arsenic in snow, and researchers have established that the natural level is 1.5 nM. State the null hypothesis and the alternative hypothesis that should be used to determine if the level of arsenic concentration was (at that time) higher than the natural level of 1.5 nM. The sample size is rather...

  • A sample size of 120 had a sample mean and standard deviation of 100 and 15 respectively. Of thes...

    A sample size of 120 had a sample mean and standard deviation of 100 and 15 respectively. Of these 120 data values, 3 were less than 70, 18 were between 70 and 85, 30 between 85 and 100, 35 between 100 and 115, 32 were between 115 and 130 and 2 were greater than 130. Test the hypothesis that the sample distribution was normal.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT