Using [Hint_1] show that the sampling distribution of MLE is given by OMLE 0 N Fn-1m-1 i.e., the sampling distribution of MLE is an F distribution with n - 1 degrees of freedom in the numerator, and m - 1 degrees of freedom in the denominator.
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- A manufacturer claims that the batteries for a laptop can last up to 6 hours from full charge. State the null and alternative hypotheses and identify the claim of the manufacturer.ge 24 of 30) - Chromium n.squ.edu.om/mod/quiz/attempt.php?attempt-D1766808&cmid%3D8751228page%3D23 YSTEM (ACADEMIC) s Statistics 1|| Spring21 Time left 0:29:4 A survey showed that 50% of customers like Toyota cars, 40% customers like Nissan cars, and 70% like at least one brand of cars Toyota or Nissan. Then the probability that a randomly selected customer will like both Toyota and Nissan car is O a. 0.30 O b. 0.70 O c. 0.90 O d. 0.20 ere to searchA research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 1000 adults in that country in a recent year, 26% say they are concerned that their taxes will be audited. At a = 0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. The percentage of adults in the country who.think that their taxes will be audited is not %. B. At least % of adults in the country think that their taxes will be audited. O C. Less than % of adults in the country think that their taxes will be audited. O D. % of adults in the countrv think that their taxes will be audited. Click to select and enter your answer(s) and then click Check Answer. parts 5 remaining Clear All Check Answer
- Question 14 Express the null hypothesis Ho and the alternative hypothesis Hi in symbolic form. Use the correct symbol (µ, p, o )for the indicated parameter. An entomologist writes an article in a scientific journal which claims that fewer than 12 in ten thousand male fıreflies are unable to produce light due to a genetic mutation. Use the parameter p, the true proportion of fireflies unable to produce light. O Ho: p = 0.0012 H1: p 0.0012 %3! Ho: p 0.0012 H: p s 0.0012A research center claims that at least 31% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 26% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. Less than % of adults in the country think that their taxes will be audited. O B. % of adults in the country think that their taxes will be audited. O C. At least 31 % of adults in the country think that their taxes will be audited. O D. The percentage of adults in the country who think that their taxes will be audited is not Let p be the population proportion of successes, where a success is an adult in the country who thinks that…A research center claims that at least 31% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 26% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. Less than % of adults in the country think that their taxes will be audited. O B. % of adults in the country think that their taxes will be audited. C C. At least 31 % of adults in the country think that their taxes will be audited. O D. The percentage of adults in the country who think that their taxes will be audited is not %. Let p be the population proportion of successes, where a success is an adult in the country who thinks that…
- QUESTION 16 How does an investigator determine whether a result is replicable? O Try to find a simpler explanation that fits the results Conduct a statistical test to measure the probability of getting such results by chance Repeat the experiment and compare results Examine the procedures looking for hidden flawsA research center claims that at least 24% of adults in a certain country think that their taxes will be audited. In a random sample of 1000 adults in that country in a recent year, 21% say they are concerned that their taxes will be audited. At a = 0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. The percentage of adults in the country who think that their taxes will be audited is not %. O B. Less than % of adults in the country think that their taxes will be audited. OC. % of adults in the country think that their taxes will be audited. O D. At least % of adults in the country think that their taxes will be audited.According to a food website, the mean consumption of popcorn annually by Americans is 64 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Họ: H,: (Type integers or decimals. Do not round.) (b) A sample of 876 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department. O A. There is sufficient evidence to conclude that the mean consumption of popcorn has risen. O B. There is not sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. OC. There is sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. O D. There is not sufficient evidence to conclude that the mean consumption…
- In which situation cointegration test can be performed? Write down its null Also, refer the given table and interpret the results?Question 10 of 14 (1 point) Attempt 1 of Unlimited View question in a popup 12.2 Section Exercise 12 (p-value, calc) Beryllium disease: Beryllium is an extremely lightweight metal that is used in many industries, such as aerospace and electronics. Long-term exposure to beryllium can cause people to become sensitized. Once an individual is sensitized, continued exposure can result in chronic beryllium disease, which involves scarring of the lungs. In a study of the effects of exposure to beryllium, workers were categorized by their duration of exposure (in years) and by their disease status (diseased, sensitized, or normal). The results were as follows: Duration of Exposure 5 Diseased 15 7 19 Sensitized 12 22 14 Normal 66 145 197 Send data to Excel Test the hypothesis of independence. Use the a = 0.10 level of significance and the P-value method with the TI-84 Plus calculator. What do you conclude? Part: 0 / 4 Save For Later Submit Assignment Skip Part Check Answer O 2021 McGraw-Hill…Section 10.3 Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. Step 2 of 3: draw a conclusion and interpret the decision. a.) we reject the null hypothesis and conclude that there is sufficient evidence at the 0.05 level of significance to support the claim that the average time required to install the tile differs from 10 hrs b.) we fail to reject the null hypothesis and conclude that there is sufficient evidence at the 0.05 level of significance to support the claim that the average time required to install the tile differs from 10 hrs c.) we fail to reject the null hypothesis and conclude that there is insufficient evidence at the 0.05 level of significance to support the claim that the average time required to install the tile differs from 10 hrs d.) we reject the null hypothesis and conclude that there is insufficient evidence at the 0.05 level of significance to support the claim that the average time required to…