In the following situations, give the expected count for each of the k categories. (a) k = 3, H0: p1 = p2 = p3 = 1 3 , and n = 900
E1 =
E2 =
E3 =
Given,
If p1 = p2 = p3 = 13 , and n = 900
Expected count E(X) = n*p
E1 = p1*n = 11,700
E2 = p2*n = 11,700
E3 = p3*n = 11,700
If p1 = p2 = p3 = 1/3 and n = 900
E1 = p1*n = 300
E2 = p2*n = 300
E3 = p3*n = 300
In the following situations, give the expected count for each of the k categories. (a) k...
Stats help!! A researcher wants to determine if the distribution of asthma mortality by race has changed over the past years. He gathered data from Center of Disease Control and Prevention, and the following data was obtained from National Asthma Mortality Rate of 2015: Race White Non-Hispanic Black Non-Hispanic Other Non-Hispanic Hispanic Total Observed Counts (O) 2259 1148 235 358 4000 Percentages 60% 25% 5% 10% 100% Expected Counts (E) 1) If the null hypothesis is true, what are the...
a) Find the expected counts in each category using the given sample size and null hypothesis. H0:p1=0.7,p2=0.1,p3=0.1,p4=0.1;n=400 Enter the exact answers. Category 1 2 3 4 Expected count Enter your answer; Expected count, Category 1 Enter your answer; Expected count, Category 2 Enter your answer; Expected count, Category 3 Enter your answer; Expected count, Category 4 b) Find the expected counts in each category using the given sample size and null hypothesis. H0: All three categories A, B, C are...
The authors of a paper studied a random sample of 346 Twitter users. For each Twitter user in the sample, the tweets sent during a particular time period were analyzed and the Twitter user was classified into one of the following categories based on the type of messages they usually sent. Category Description IS Information sharing OC Opinions and complaints RT Random thoughts ME Me now (what I am doing now) O Other The accompanying table gives the observed counts...
Assume a series of reactions in one closed system as following (1) S+E1 <=> E1S => E1+P1, with rate constant Kf (forward), Kb(backwards), Kcat (2) P1+E2 <=> E2P1 => E2+P2, with Kf’,Kb’, Kcat’ (3) P1+P2 <=> P3, with Kf”, Kb” • Initial concentration [S], [E1], [E2] To prepare for simulation, write ODEs for each participating component and product in the system based on Mass action law and enzyme conservation law, including d(S)/d(t), d(E1)/d(t), d(E1S)/d(t), d(P1)/d(t), d(E2)/d(t), d(E2P1)/d(t), d(P2)/d(t), d(P3)/d(t).
the
following table contains the number of successes and failures for
three categories of a variable. Test whether the proportions are
equal for each category at the a=.1 level of signifcance.
please help! :)
Failures Successes Category 1 Category 2 Category 3 90 66 38 32 59 40 State the hypotheses. Choose the correct answer below. O A. Ho: P1 P2 P3 H, At least one of the proportions is different from the others. O B. Ho: H = E,...
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-P2) for each of the following situations. 0.7 and p2 Assuming that n-n2, find the sample sizes needed to estimate (p a. A margin of error equal to 0.08 with 99% confidence. Assume that p1 02. b.A 90% confidence interval of width 0.97. Assume that there is no prior information available to obtain approximate values of p,and p2 C. A margin of error equal to 0.05 with 90% confidence. Assume that p1 0.88 and p2 0.8. a. What is the...
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