For the following observed and expected frequencies: Observed 30 9 15 15 17   Expected 33 6 19 20 19     Test the hypothesis that the distribution of the observed frequencies is as given by the expected frequencies. Use the =α0.05 level of significance and the P-value method with the TI-84 Plus calculator. (a) State the null and alternate hypotheses. (b) Find the P-value. Round the answer to at least four decimal places. (c) Determine whether to reject H0. (d) State a conclusion.

Q: A 95% confidence interval for the population mean will be built for a population with a standard…

A: From the provided information, Population standard deviation (σ) = 20 Width of confidence interval =…

Q: You are conducting a multinomial hypothesis test (a = 0.05) for the claim that all 5 categories are…

A: The random variable is category. There are 5 types of categories. We have to test whether all 5…

Q: Part A. Please show ti 84 steps

A: (a) The random sample, n is 60, the standard deviation is 20 and the sample mean is 32. The…

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: The provided 12 sample observations (i.e., the sample size, n=12) are : 1424, 694, 729, 625, 1225,…

Q: A manufacturer of potato chips would like to know whether its bag filling machine works correctly at…

A: Solution: State the hypotheses. Null hypothesis: That is, the bag filling machine works correctly…

Q: hypothesis test for the claim that the 4 categories occur with the following frequencies: Н. : РА —…

A: Given H0:PA=0.3 PB=0.2 Pc=0.3 PD=0.2

Q: You would like to rent an unfurnished one-bedroom apartment in Braamfontein, Johannesburg next year.…

A:

Q: The standard deviation of test scores on a certain achievement test is 11.5 . A random sample of 90…

A: From the given information, let X be the score on a test. Total number of scores sampled n = 90. The…

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: 1423,1225,987,694,729,834,729,748,550,622,1444,941 sample size(n)=12

Q: #5.A survey organization takes a simple random sample of 625 households from a city of 80,000…

A: The question is based to find and interpret confidence interval for a popl. mean  Given : Sample…

Q: A machine that is programmed to package 1.30 pounds of cereal is being tested for its accuracy in a…

A: Givensample size(n)=43mean(x)=1.32standard deviation(σ)=0.06α=1-0.95=0.05α2=0.025zα2=1.96

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may…

A:

Q: For the provided sample mean, sample size, and population standard deviation, complete parts (a)…

A:

Q: 1. A sample size of n=12 with population standard deviation ở= 16 at 99% confidence level. 2. A…

A:

Q: A manufacturer of potato chips would like to know whether its bag filling machine works correctly at…

A:

Q: The mean weight of 15 randomly selected newborn babies at a local hospital is 8 lbs and the standard…

A: The sample size is 15, sample mean is 8 and sample standard deviation is 0.8.

Q: A sample of n=24 is selected from a population = 120 and σ = 40.  If the sample mean is 130, what is…

A: It is given that the population mean, μ=120 and standard deviation, σ=40. For the sample size of 24,…

Q: You are conducting a multinomial hypothesis test (a= 0.05) for the claim that all 5 categories are…

A: It is needed to test, whether all of the 5 categories are equally likely.

Q: Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who sufer from…

A:

Q: A random sample of ?=1300 registered voters and found that 670 would vote for the Republican…

A: One proportion z test

Q: (b) How are the data sets the same? How do they differ? O A. The three data sets have the same range…

A: Range is the difference between highest value - lowest value. Mean is average  of all values.

Q: Find the confidence interval for a Related-Samples t-test (Ch.11), given the following info: Level…

A: Solution-: In given problem data are before and after so this is suitable for paired t-test. Let,…

Q: A sample of male and female students were equipped with a device that records sound for one day.…

A: given data malesx¯1  = 16177s1 = 7520n1 = 56femalex¯2  =16569s2 = 9108n2 = 5699% ci for μ1-μ2unequal…

Q: A simple random sample of size n=17 is drawn from a population that is normally distributed. The…

A: We have given that,  Sample mean (x̄) =107, sample standard deviation (s) = 10 and sample size (n) =…

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: Given states test scores for 12 randomly selected high school seniors Test Score  1426 1223…

Q: ) Make a X square -test of the null hypothesis that the die is fair. What's the p-value? (round to 3…

A: The experiment is of the fair die.It has 6 outcomes 1,2,3,4,5,6.Given…

Q: A fashion designer wants to know how many new dresses women buy each year. A sample of 650 women was…

A: From the provided information, Sample size (n) = 650 Population standard deviation (σ) = 1.3 Sample…

Q: (b) A random sample of 120 measurements taken from a normal population gave the following data:…

A: Solution:- From given information

Q: 4. 84% 5. 81% B. Assuming that the population is approximately normally distributed, compute the…

A: Given that

Q: wing sample of n = 4 scores was obtained from a population with unknown = parameters. Scores: 2, 2,…

A: a. The sample mean is: x=∑xn Now, x x−¯x (x−¯x)2 2 -1 1 2 -1 1 6 3 9 2 -1 1 The…

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: a. Use the one-mean t-interval procedure with the sample mean, sample size, sample standard…

A:

Q: (Sec. 5.4) Let X denote the courtship time for a randomly selected female-male pair of mating…

A: a) From the given information, the random variable X denotes the courtship time for a randomly…

Q: 9. A sample size of n 300 with population standard deviation o= 0.75 at 99% confidence level. 10. A…

A: From the provided information, Sample size (n) = 300 Standard deviation (σ) = 0.75 Confidence level…

Q: For a random sample of 400 students, the mean cost for textbooks during the first semester of…

A: According to the given information, we have Sample size, n = 400 Mean = 368.75 Sample standard…

Q: Over the years, the mean customer satisfaction rating at a local restaurant has been 79. The…

A:

Q: A sample of 10 observations taken from a normally distributed population yielded the following…

A:

Q: (CO 4) In a sample of 8 high school students, they spent an average of 28.8 hours each week doing…

A: According to the provided information,

Q: How much money does the average professional hockey fan spend on food at a single hockey game? That…

A: The independent sample t-test is used when we want to estimate/compare the mean(s) of an independent…