test statistics of z = 3.15 is obtained when testing the claim that p > 0.27. Use the significance level of α=0.01 to find the critical value(s).
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The test statistics of z = 3.15 is obtained when testing the claim that p > 0.27.
Use the significance level of α=0.01 to find the critical value(s).
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- Respiratory Rate Researchers have found that the 95 th percentile the value at which 95% of the data are at or below for respiratory rates in breath per minute during the first 3 years of infancy are given by y=101.82411-0.0125995x+0.00013401x2 for awake infants and y=101.72858-0.0139928x+0.00017646x2 for sleeping infants, where x is the age in months. Source: Pediatrics. a. What is the domain for each function? b. For each respiratory rate, is the rate decreasing or increasing over the first 3 years of life? Hint: Is the graph of the quadratic in the exponent opening upward or downward? Where is the vertex? c. Verify your answer to part b using a graphing calculator. d. For a 1- year-old infant in the 95 th percentile, how much higher is the walking respiratory rate then the sleeping respiratory rate? e. f.After concluding an experiment, the researcher analyzed the data using ANOVA. The researcher obtained a value of F(3,42) = 3.19. The researcher then determined that the critical value for with df(BS)=3 and df(WS)=23 and α = .05 is 3.22. What conclusion should the researcher make?The test statistic of z = - 2.71 is obtained when testing the claim that p = 1/2. Using a significance level of a = 0.05, find the critical value(s) Should we reject Ho or should we fail to reject Ho?
- The mean salary of federal government employees on the general schedule is $59,593. The average salary of 30 state employees who do the similar work is $ 58,800 with α =$1500. At the 0.01 level of significance, can it be concluded that state employees earn on average less than federal employees?Arm circumferences (cm) and heights (cm) are measured from randomly selected adult females. The 142 pairs of measurements yield x=32.14cm, y=163.36cm, r=.084, P value=.32 and y=160+.111x. Find the best predicted value of y (height) given an adult female with an arm circumference of 40cm. Let the predictor variable x be arm circumference and the response variable y be height. Use a .05 significance level.Determine both critical z-scores corresponding to αα = 0.25 in a two-tail test. neg. crititical z-score = [three decimal accuracy] pos. crititical z-score = [three decimal accuracy]
- A veterinarian claims that the mean weight of adult German shepherd dogs is 75 pounds. The test statistic is -2.01 when a researcher applied hypothesis test to test a veterinarian's claim at ?=0.05α=0.05. Find the critical value(s) and state the conclusion.A hospital claims that the average length of patient confinement is 5 days. A study of the length of patient confinement of 36 people showed a mean of 6.2 and s = 5.2. Does this data support the hospital’s claim? Use α = 0.01.The mean for the number of pets owned per household was 2.1. A poll of 1023 householdsconducted this year reported the mean for the number of pets owned per household to be 2.Assuming σ = 1.1, is there sufficient evidence to support the claim that the mean number ofpets owned has changed since at the α = 0.05 level of significance? Use the p-value approach and clearly specify each step.
- For Z-test used to analyze data on tablet weight in a batch with Ho: u = 300 mg and at a = 0.05. If a sample was taken from the batch and Z-score of the mean tablet weight of the sample was correctly calculated as 1.9. P-value is which suggest that, O 0.047, The mean tablet of the batch is not significantly different from 300 O 0.0574, The mean tablet of the batch is significantly different from 300 O 0.0287, The mean tablet of the batch is not significantly different from 300 O 0.047, The mean tablet of the batch is significantly different from 300 O0.9713, The mean tablet of the batch is significantly different from 300 0.9713, The mean tablet of the batch is not significantly different from 300 0.0287, The mean tablet of the batch is significantly different from 300 0.0574, The mean tablet of the batch is not significantly different from 300 Next pcThe test statistic of z = -3.32 is obtained when testing the claim that p < 0.19. Using the significance level a= 0.10 find the critical value’sThe test statistic of z=-2.96 is obtained when testing the claim that p<0.59. Using a significance level of a=0.05. Find the critical value (s)
