A researcher claims that the stomachs of blue crabs from Location A contain more fish than...
A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 13 blue crabs from Location A contain a mean of 195 milligrams of fish and a standard deviation of 35 milligrams. The stomach contents of a sample of 11 blue crabs from Location B contain a mean of 187 milligrams of fish and a standard deviation of 41 milligrams. At alphaequals0.10, can you support the researcher's claim? Assume the population variances are equal. Complete parts (a) through (d) below. I need help with the standarized test statistic and p-value, and conclusion on whether is enough to reject or fail to reject at a 0.10(alpha)
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A researcher claims that the stomachs of blue crabs from
Location A contain more fish than...
please find the test statistic and p value 0.2 Save Score: 0.2 of 1 pt 5...
please find the test statistic and p value
0.2 Save Score: 0.2 of 1 pt 5 of 8 (8 complete) HW Score: 5696, 5.6 of 10 pts 8.2.15-T Assigned Media Question Help A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 14 blue crabs from Location A contain a mean of 196 milligrams of fish and a standard...
Quiz: Chapter 8 Quiz Submit Quiz This Question: 1 pt 10 of 14 (9 complete) This...
Quiz: Chapter 8 Quiz Submit Quiz This Question: 1 pt 10 of 14 (9 complete) This Quiz: 14 pts possibl Question Help of blue crabs from Location B. The stomach contents of a sample of 16 blue crabs from Location A contain a mean of 197 milligrams of fish and a standard deviation of 35 milligrams. The stomach contents of a sample of 8 B contain a mean of 182 mIgrams of fish and a standard deviation of 45 milligrams...
18. A researcher claims that more than 75% of the adults believe in global warming, Mimi conducte...
18. A researcher claims that more than 75% of the adults believe in global warming, Mimi conducted a survey on a random sample of 300 adults. The survey showed that 240 adults in the sample believe in global warming. Assume Mimi wants to use a 0.05 significance level to test the researcher's claim. (a) What is the appropriate hypothesis test to use for this analysis? Please identify and explain (b) Identify the null hypothesis and the alternative hypothesis. why it...
A bank claims that the mean waiting time in line is less than 4.1 minutes. A...
A bank claims that the mean waiting time in line is less than 4.1 minutes. A random sample of 60 customers has a mean of 4 minutes. Assuming a population standard deviation of 0.6 minute, test the bank's claim with an ? = 0.05 level of confidence. ?0 = ___________________________________ ?? = ___________________________________ Test Statistic = __________________________ Alpha level of significance= __________________ Classical Critical Value = ____________________ P-value = _______________________________ ________Conclusion: A) reject ?0 B) fail to reject ?0 ________Interpretation:...
In an advertisement, a pizza shop claims that its mean delivery time is no more than...
In an advertisement, a pizza shop claims that its mean delivery time is no more than 30 minutes. A random selection of 36 delivery times has a sample mean of 31.5 minutes. Assume the population standard deviation is 3.5 minutes and alpha is 0.02. ved Answer the following using the classical approach for hypothesis testing. Indicate the symbol in the Ha statement. Calculate the test statistic, z'. Is the critical region(s) left tailed, right tailed, or two tailed? As What...
A fitness magazine claims that the mean cost of a yoga session is not more than...
A fitness magazine claims that the mean cost of a yoga session is not more than $13. You work for a consumer group and are asked to test this claim. You find that a random sample of 27 yoga sessions has a mean cost of $14.32 and a standard deviation of $2.40. At ?-0.025, do you have enough evidence to reject the magazine's claim? Assume the population is normally distributed. a. Ho HA b. Find the critical value (s) and...
For a particular task given to a large population of participants, a researcher claims that the...
For a particular task given to a large population of participants, a researcher claims that the mean completion time, u, of the population is 60 minutes. To test this claim, 50 subjects are chosen at random from this population and given the task independently. The mean completion time of these 50 subjects is 59 minutes. It is known that the population standard deviation of completion times is 6 minutes. Assume that the population is normally distributed. Can we reject the...
A credit card company claims that the mean credit card debt for individuals is greater than...
A credit card company claims that the mean credit card debt for individuals is greater than $ 5,000. You want to test this claim. You find that a random sample of 34 cardholders has a mean credit card balance of $ 5,228 and a standard deviation of $ 550. At alpha equals 0.10, can you support the claim? Complete parts (b) through (e) below. Assume the population is normally distributed. (b) Find the critical value(s) and identify the rejection region(s)....
3. A company claims that the new boxes of detergents that it sells contain more than...
3. A company claims that the new boxes of detergents that it sells contain more than 500 grams of detergent. From past experience the company knows that the quantity of t in a box is normally distributed with a mean of 500 grams and a standard deviation of 120 grams. A market analyst bought 64 boxes of the detergent and found that the average weight is 520 grams. Determine if the company's claim is legitimate at the 0.05 level of...
A UCLA researcher claims that the average life span of mice can be extended by as...
A UCLA researcher claims that the average life span of mice can be extended by as much as 8 months when the calories in their diet are reduced by approximately 40% from the time they are weaned. The restricted diets are enriched to normal levels by vitamins and protein. Suppose that a random sample of 10 mice is fed a normal diet and has an average life span of 32.1 months with a standard deviation of 3.2 months, while a...
please find the test statistic and p value
0.2 Save Score: 0.2 of 1 pt 5 of 8 (8 complete) HW Score: 5696, 5.6 of 10 pts 8.2.15-T Assigned Media Question Help A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 14 blue crabs from Location A contain a mean of 196 milligrams of fish and a standard...
Quiz: Chapter 8 Quiz Submit Quiz This Question: 1 pt 10 of 14 (9 complete) This Quiz: 14 pts possibl Question Help of blue crabs from Location B. The stomach contents of a sample of 16 blue crabs from Location A contain a mean of 197 milligrams of fish and a standard deviation of 35 milligrams. The stomach contents of a sample of 8 B contain a mean of 182 mIgrams of fish and a standard deviation of 45 milligrams...
18. A researcher claims that more than 75% of the adults believe in global warming, Mimi conducted a survey on a random sample of 300 adults. The survey showed that 240 adults in the sample believe in global warming. Assume Mimi wants to use a 0.05 significance level to test the researcher's claim. (a) What is the appropriate hypothesis test to use for this analysis? Please identify and explain (b) Identify the null hypothesis and the alternative hypothesis. why it...
In an advertisement, a pizza shop claims that its mean delivery time is no more than 30 minutes. A random selection of 36 delivery times has a sample mean of 31.5 minutes. Assume the population standard deviation is 3.5 minutes and alpha is 0.02. ved Answer the following using the classical approach for hypothesis testing. Indicate the symbol in the Ha statement. Calculate the test statistic, z'. Is the critical region(s) left tailed, right tailed, or two tailed? As What...
A fitness magazine claims that the mean cost of a yoga session is not more than $13. You work for a consumer group and are asked to test this claim. You find that a random sample of 27 yoga sessions has a mean cost of $14.32 and a standard deviation of $2.40. At ?-0.025, do you have enough evidence to reject the magazine's claim? Assume the population is normally distributed. a. Ho HA b. Find the critical value (s) and...
For a particular task given to a large population of participants, a researcher claims that the mean completion time, u, of the population is 60 minutes. To test this claim, 50 subjects are chosen at random from this population and given the task independently. The mean completion time of these 50 subjects is 59 minutes. It is known that the population standard deviation of completion times is 6 minutes. Assume that the population is normally distributed. Can we reject the...
3. A company claims that the new boxes of detergents that it sells contain more than 500 grams of detergent. From past experience the company knows that the quantity of t in a box is normally distributed with a mean of 500 grams and a standard deviation of 120 grams. A market analyst bought 64 boxes of the detergent and found that the average weight is 520 grams. Determine if the company's claim is legitimate at the 0.05 level of...
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