abel the hypothesis as null or alternative Eating frequent family dinners increases school grades O Null Hypothesis O Alternative Hypothesis
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- R language and R studio #######code in R # Run a two sample hypothesis test. # We want to know if there is evidence the mean uptake # value for the nonchilled treatment is greater than the # mean uptake value for the chilled treatment. ############## use the CO2 data set #### Note: Use CO2 and not co2. #### co2 is a simple vector of numbers # Use 4% for the significance level help(CO2) ### provides documentation of the data set. # show work below for your hypothesis test # <your work here> # What is the null hypothesis? # <your answer here> # What is the p-value of the test? # <your answer here> # Do you reject the null hypothesis? # Aside from the yes or no answer, give a reason # for your answer. # <your answer here>13Question in attachment
- What is the nature of E(Y|X = x…)? Please select the best answer. E(Y|X= x.) is the expected value of Y when X = ₂. Suppose we don't know the population model. A random variable An unknown parameter A known parameterpart a dropdown: years of expierence or annual income part f dropdown: increases or decreases or stays the sameQuestion Help ▼ 7.4.7-T A medical researcher says that less than 86% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 82% think that healthy children should be required to be vaccinated. At a 0.01, is there enough evidence to support the researcher'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. % of adults in the country think that healthy children should be required to be vaccinated. B. More than % of adults in the country think that healthy children should be required to be vaccinated. C. Less than 86 % of adults in the country think that healthy children should be required to be vaccinated. %. D. The percentage of adults in the country who think that healthy children should…
- 2-2Title Suppose the hypotheses for a one-sample t-test are H0: ? = 0 vs. Ha: ? > 0. Further suppose that, Description Suppose the hypotheses for a one-sample t-test are H0: ? = 0 vs. Ha: ? > 0. Further suppose that, based on a sample of n=15 observations, the t test statistic is t = 1.82. What are the degrees of freedom for this t-test statistic? Give the two critical t-values in the t-Table that bracket t =1.82 Give the two right-tail probabilities for these two t-values. How should the p-value for this test of significance be reported? _______ Is the value t=1.82 statistically significant at the p Is the value t=1.82 statistically significant at the pNone
- What is your conclusion? Accept the alternative hypothesis and reject the claim Accept the null hypothesis and support the claim Reject the alternative hypothesis and support the claim Fail to reject the null hypothesis and do not support the claim Reject the null hypothesis and support the claimQuestion( A scientific group claims that the true population mean μ is more than 7 meters. (i) What is the form of the null and alternative hypotheses for testing groups claim? Choose one No answer given H0:μ=7, VS HA:μ>7 H0:μ=7, VS HA:μ<7 H0:μ=7, VS HA:μ≠7A Moving to another question will save this response. Question 4 For testing the difference between two population proportions, the pooled proportion estimate should be used to compute the value of the test statistic when the: populations are normally distributed O sample sizes are small O samples are independently drawn from the populations O null hypothesis states that the two population proportions are equal A Moving to another question will save this response. MacBook Pro esc %$4 @ 5 0 A L
