Question

Astronomers have recently discovered an unknown distant galaxy and noticed something abnormal. Specifically, they suspect theAre the assumptions necessary for this hypothesis test satisfied? Justify your answer. Calculate the appropriate test statist

0 0
Add a comment Improve this question Transcribed image text
Answer #1

The information is given as follows: The sample size that denotes the randomly observed stars within the new galaxy is n= 45The test statistic is calculated as follows: 7- p-p p(1-p) 0.533-0.75 10.75(1-0.75) V 45 = -3.362 Hence, the test statistic i

Add a comment
Know the answer?
Add Answer to:
Astronomers have recently discovered an unknown distant galaxy and noticed something abnormal. Specifically, they suspect the...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Say a 95% confidence interval for P2 - P2, the difference between two proportions, is (0.152,...

    Say a 95% confidence interval for P2 - P2, the difference between two proportions, is (0.152, 0.392). This indicates that the difference between the two proportions is not significant. A) True-- Yes OB) False--No O C) Can't tell without the data Question 7 (1 point) According to National Eye Institute (NEI), in 2010, 61% of Americans with cataract were women and 39% were men. Suppose you want to conduct a test for the difference in proportions to test whether females...

  • Hypotheses and summary sample statistics are given for a test for a proportion. Test Ho :...

    Hypotheses and summary sample statistics are given for a test for a proportion. Test Ho : p = 0.3 vs Ha :p>0.3 when the sample has p = 0.37 and n = 500. Find the value of the standardized z-test statistic and then use the standard normal distribution to find the p-value. Round your answers to three decimal places. z-test statistic - p-value = What is the conclusion using a 5% significance level? O Reject Ho O Do not reject...

  • it he 1980s it was generally believed that con enital abnormal ties affected aboutア of a...

    it he 1980s it was generally believed that con enital abnormal ties affected aboutア of a large nation's ch dren ome people believe that the increase in the number o chemicals in the environment has led to an increase in the incidence o abnormalities. A recent study examined 358 randomly selected children and ound hat 28 of the showed signs of an abnormality. Is this strong ev dence that the nsk has increased? We consider a P-value of around 5%...

  • (Round all intermediate calculations to at least 4 decimal places.) In order to conduct a hypothesis...

    (Round all intermediate calculations to at least 4 decimal places.) In order to conduct a hypothesis test for the population mean, a random sample of 15 observations is drawn from a normally distributed population. The resulting sample mean and sample standard deviation are calculated as 8.6 and 1.8, respectively. Use Table 2 Use the p-value approach to conduct the following tests at a0.10 HO-us 7.3 against HA > 7.3 a-1. Calculate the value of the test statistic. (Round your answer...

  • Test: Exam 3 1 of 10 0 complete) This Question: 4 pts Conduct he folowing teat...

    Test: Exam 3 1 of 10 0 complete) This Question: 4 pts Conduct he folowing teat at the a 0.01 level of signficance by delermining (a) the mul and altemative hypotheses, (b) the test statistic, and (c) the Pwalue Assume that the sampies were obtained independenty using simple random sampling. Test whether Ps PSample data are x,30, n 254, x -36, and n-301 (a) Detemine the nul and atemative hypotheses. Choose the comect answer below. O B. Ha PP versus...

  • Suppose you wish to conduct a test of the research hypothesis that the median of a population is ...

    Not sure of my answers Suppose you wish to conduct a test of the research hypothesis that the median of a population is greater than 73. You randomly sample 20 measurements from the population and determine that 13 of them exceed 73. Set up and conduct thee appropriate test of hypothesis at the 0.10 level of significance. Be sure to specify all necessary assumptions. What are the null and alternative hypotheses for this hypothesis tast? OA. Ho: n-13 He :...

  • A plan for an executive travelers' club has been developed by an airline on the premise...

    A plan for an executive travelers' club has been developed by an airline on the premise that 5% of its current customers would qualify for membership. A random sample of 500 customers yielded 40 who would qualify. (a) Using this data, test at level 0.01 the null hypothesis that the company's premise is correct against the alternative that it is not correct. State the appropriate null and alternative hypotheses. Ho: P = 0.05 Ha: p = 0.05 Ho: P =...

  • Recent incidents of food contamination have caused great concern among consumers. An article reported that 33...

    Recent incidents of food contamination have caused great concern among consumers. An article reported that 33 of 80 randomly selected Brand A brand chickens tested positively for either campylobacter or salmonella (or both), the leading bacterial causes of food-borne disease, whereas 69 of 80 Brand B brand chickens tested positive. (a) Does it appear that the true proportion of non-contaminated Brand A chickens differs from that for Brand B? Carry out a test of hypotheses using a significance level 0.01....

  • A suggestion is made that the proportion of people who have food allergies and/or sensitivities is...

    A suggestion is made that the proportion of people who have food allergies and/or sensitivities is 0.63. You believe that the proportion is actually greater than 0.63. If you conduct a hypothesis test, what will the null and alternative hypothesis be? Question 1 options: 1) HO: p ≤ 0.63 HA: p > 0.63 2) HO: p = 0.63 HA: p ≠ 0.63 3) HO: p > 0.63 HA: p ≤ 0.63 4) HO: p < 0.63 HA: p ≥ 0.63...

  • In order to conduct a hypothesis test for the popufation proportion, you sample 320 observations that...

    In order to conduct a hypothesis test for the popufation proportion, you sample 320 observations that result in 128 successes Use the p-value approach to conduct the following tests at 0° 0 05 Use Table 1 Ho, p2045; H, p<045 a-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) Test statistic a-2. The p-value is: (Round p value to 4 decimal places.) O p-value <...

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
ADVERTISEMENT