a) The research hypothesis H1 b) The null hypothesis HO c) The rejection region of the null hypothesis a) H;: 4 # 7.5 b) Họ: u = 7.5 c) [-tin-1) , tin-1)] O a) H1: µ # 7.5
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![It is known that, on average, the level of knowledge in natural sciences of children in urban areas is 7.5.
It is suspected that the average natural science knowledge of children in rural areas is different.
identify
a) The research hypothesis H1
b) The null hypothesis H0
c) The rejection region of the null hypothesis
O a) H1: u # 7.5
b) H μ - 7.5
c) [-tin-1) , tin-1)]
O a) H1: µ + 7.5
b) Ho: μ-7.5
c) (-00 , -tin-1,] U [t(n-1) , ∞)
O a) H1: µ = 7.5
b) Họ: 4 + 7.5
c) (-00 , -tin-1)] U [tn-1) , ∞)
O a) H1: u # 7.5
b) Ho: μ - 7.5
c) (-00 , tin-1)]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f9d7520-78a9-4ea5-aa84-f1f63ffe00c7%2F59979cdc-c8e8-41c7-9c3a-9ad8d0341029%2F5omz6kh_processed.png&w=3840&q=75)
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- Which part Given or Prove of the proof depends upon the a hypothesis of theorem? b conclusion of theorem?In a study with a non-directional hypothesis… A) There are two rejection regions that have the same area that adds up to the alpha level. B) There is a single rejection region with an area that corresponds to the alpha level. C) There are two rejection regions that have the same area that adds up to the p-value. D) There is a single rejection region with an area that corresponds to the p-value.The size of leaves taken from bramble bushes were measured to see if there is adifference between the size of the leaves growing in full sunlight and those growing inthe shade. Test the hypothesis using 0.05 level of significance.Width Of Leaf / Cm Sunlight6.0 4.8 5.1 5.5 4.1 5.3 4.5 5.1Shade 6.5 5.5 6.3 7.2 6.8 5.5 5.9 5.5 is this a wilcoxon test or mann whitney test ? and how do i do this question in hand calculation method. attached ceritical table for the two tests
- A species of marine arthropod lives in seawater that contains calcium in a concentration of 32 mmole/kg of water. Fourteen of the animals are collected and the calcium concentrations in their coelomic fluid are found to be: 28, 27, 29, 26, 30, 33, 31, 30, 33, 25, 30, 32, 21 and 31 mmole/kg. Test the appropriate hypothesis to conclude whether members of this species have a coelomic calcium concentration different than that of their environment. At the 0.05 level of significance, is there a evidence to conclude that the true average coelomic calcium concentration in the species is different than that of their environment? What assumptions must you make about the population distribution in order to conduct the hypothesis testing in part a.)? Clearly write down the test Statistic (in notations) used for hypothesis testing. Construct a 95% confidence interval estimate of the true average coelomic calcium concentration of the species. (Clearly write down the formula used and…Dr. Dommer is interested in testing whether the gender breakdown in his introductory biology class isrepresentative of the gender breakdown of the college population. There are 20 females and 25 males in his class. If the college population is 60 percent female, what should Dr. Dommer conclude about the representativeness of his class? Complete the 6 steps of hypothesis testing. Show your work for each step. Report your results and conclusion in APA style. Assume that alpha is set at .05.An experiment was conducted to assess the effect of baking temperature on the density of bread. A large batch ofwhite bread dough and a large batch of whole wheat bread dough were prepared. Each of the batches was formedinto loaves, resulting in a total of loaves. Each of the white bread loaves was randomly assigned to one ofthree baking temperatures (low, medium, and high), so that loaves were baked at the low temperature, werebaked at the medium temperature, and were baked at the high temperature. A similar process of randomassignment was carried out for the whole wheat bread loaves.Which of the following are the treatments in the experiment? (A) The loaves of bread(B) The type of bread (white, whole wheat)(C) The density of the bread(D) The baking temperatures (low, medium, high)(E) The two batches of bread dough
- A species of marine arthropod lives in seawater that contains calcium in a concentration of 32 mmole/kg of water. Thirteen of the animals are collected and the calcium concentrations in their coelomic fluid are found to be: 28, 27, 29, 29, 30, 30, 31, 30, 33, 27, 30, 32 and 31 mmole/kg.(a) Test the appropriate hypothesis to determine whether members of this species maintain coelomic calcium concentration less than that of their environment.A chi square test for homogeneity applies to: Select one: a. data from a single random sample where the sample is classified by values of three or more categorical variables. b. data from samples from two or more populations where each sample is classified by values of two categorical variables. c. data from samples from two or more populations where each sample is classified by values of a single categorical variable. d. data from a single random sample where the sample is classified by values of two categorical variables.It was also asking for rejection region. What would that be?
- For the z test, the critical region for rejection of HO? A) is determined only by alpha b) is determine only by Alpha and N c) Allows us to except the null hypothesis d) is determine only buy NYou are using a z-test to test H0: u=413 vs Ha: u<413 at the a=.1 level. What would the rejection region be for this test?1. Write the null and alternative hypthesis 2. Sketch a picture of this situation. Label and scale the horizontal axis, and shade the region(s) corresponding to the p-value. 3. Include the correct decision ("reject" or "do not reject" the null hypothesis), the reason for it, and write the appropriate conclusion.