You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: Ho: PA= 0.2; PB = 0.3; Pc = 0.2; PD = 0.3 Complete the table. Report all answers accurate to three decimal places. Observed Category Expected Frequency Frequency A 42 33 D 27 What is the chi-square test-statistic for this data? (2 decimal places) B C 44

Q: points of the population proportion of 15% is closest to (Use normal approximation): replacement.…

A: Given P=15%=0.15 1-p=0.85

Q: Example 20.25 You are given the following price index numbers with base year 1995. Calculate the new…

A:

Q: 20.22 Splice the two indices with base-year 1990 = 100. Year Index 1990 100 1991 110 1992 120 1993…

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A: a) Excel Procedure: Enter X and Y in Excel>Data>Data Analysis> ‘Regression’>Select Y…

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A: Rejection rule: Reject the null hypothesis if the p-value is less than the level of significance.

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Q: In a normal distribution approximately what percent of data items fall within 1Standard deviation of…

A: Data fall within one standard deviation

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A: Given Mean =150 Standard deviation =30 I have solve option C

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A: here given , Sam is a competitive swimmer that competes in the 100 m freestyle and 100 m…

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Q: Give the value of the test statistic t for this situation:

A: here given , null and alternate  H0   : μd = 0H0   : μd ≠ 0

Q: Two samples are taken with the following sample means, sizes, and standard deviations x¯1 = 27 x¯2…

A: Given n1=65 n2=72 S1=4 S1=5

Q: The table below gives the list price and the number of bids received for five randomly selected…

A: Solution: To fit the regression line  y^= b0+b1xWhere b1= n∑xy-(∑x)(∑y)n∑x2-(∑x)2and b0=∑yn-b1∑xn…

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A: We have given thatMean(µ) = 0.8Sample size (n) = 9Sample mean (x̅) = 1.32Standard deviations (s) =…

Q: What is the standardized test statistic for the significance test the school administrator wants to…

A: It is given that Sample size n = 10 Sample mean M = 27.5 Sample SD s = 3.85 Population mean = 25

Q: 3(a). Develop hypotheses that can be used to determine whether mean annual Medicare spending in…

A: Given that ; μ = $ 6883 n = 49  Sample mean = $ 5978.32 s = $ 2513 By using this information we…

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A:

Q: In a survey, 95% of n = 400 randomly sampled married men said that they would marry their spouses…

A: For men,  = 0.95 * 400 = 380 men were ready to marry there spouses again.

Q: 1. Let X and Y be two jointly continuous random variables with joint pdf f(x,y) = {k(x + y), 0≤x≤…

A: Given that                      We have to find  Var(X)  And  P(1/2<X<1, 0<Y<1/2)

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A: Given n=7 Alpha=0.01

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A: The total number of males is 300+500+200=1000.

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A: X1=52, n1=175, x2=5, n2=40 Construct 95% CI for difference in population proportion

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A: Given information:

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A: Suppose that you are offered the following "deal." You roll a six sided die. If you roll a 6, you…

Q: Consider using a z test to test Ho: p = 0.2. Determine the P-value in each of the following…

A: a) Consider that p is the true population proportion.

Q: Example 20.27 Construct the quantity index numbers for 1991 and 1992 with base as 1990, for the…

A:

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A: Sample size (n) = 25Sample mean (x̅) = 78.2Standard deviations (s) = 23.6Significance level (α ) =…

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Q: Which of the following variable is continuous? A.Zip code of a place B.Grade received in a class…

A: Which of the following variable is continuous?

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A: Given that : μ= 1200 hour  ? = 250 hours  n = 100 By using the central limit theorem we solve this…

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A: here given , five component in diagram  A and B are in series  C , D and E are in series  p(A) =…

Q: 11. What is the mean of this data? A. 0 B. 1 C. 2 D. 3 12. What is its median? (Same choices as in…

A: Given that : A data set { 0,0,1,4,5 } We use here mode concept to solve this.

Q: A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean…

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Q: Let X and Y continuous random variable with joint density function (²(2-x-y) for 0 < x, y < 2;…

A: Given information:

Q: If the correlation coefficient is -0.145, then find the type of correlation.

A: here use basic of correlation coefficient

Q: A disadvantage of running multiple t-tests in the comparison of several population slopes is:   a.…

A: Given: multiple t-tests in the comparison of several population slopes

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A: We have given that,  Confidence interval = 90% and Margin of error (E) = 3% = 0.03 Then,  We will…

Q: Questions 11-15 are about this data, taken from a sample: {0, 0, 1, 4, 5} 11. What is the mean of…

A: We have given data { 0, 0, 1, 4, 5}

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Q: The degrees of freedom for the critical value of a one-way ANOVA obtained from 5 samples, where each…

A: It is given that Number of samples k = 5 Number of observations N = 5 × 9 = 45

Q: Section 3.3 For data set 1 5 8 18 20 38 23 57 44 24 45 8 25 47 47 59 60 162 651 81 83 83 184 89 24.…

A: 65th  percentile=60

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A: here given , Margin of error = 4 miles  confidence level = 96%

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A: HERE GIVEN, Education professionals refer to science, technology, engineering, and mathematics as…

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A: State the result as a probability

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A: For the given data Find the equation of the least-squares regression line ŷ and the linear…