We have provided a distribution and the observed frequencies of the values of a variable from a simple random sample of a population. In each case, use the chi-square goodness-of-fit test to decide, at the specified significance level, whether the distribution of the variable differs from the given distribution. Distribution: 0.2, 0.1, 0.1, 0.3, 0.3 Observed frequencies: 29, 13, 5, 25, 28 Significance level = 0.10

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: Given: n = 100 p^ = 0.25 P = 0.29 α = 0.05 Formula Used: Test-statistic Z = p^-PP(1-P)n

Q: Decide whether the normal sampling distribution can be used. If it can be​ used, test the claim…

A: Yes, normal sampling distribution can be used because both 'np' and 'nq' are greater than or equal…

Q: on of pregnant women, the mean weight gain during pregnancy was mu = 32lb(s) with standard deviation…

A: As the population standard deviation is known, it can be said that the distribution follows a normal…

Q: 64 randomly selected students were asked the number of pairs of shoes they have. Let X represent the…

A: mean = 8.0625median = 8sample standard deviation = 2.256first quartile = 6.5third quartile =…

Q: etermine whether the hypothesis test involves a sampling distribution of means that is a normal…

A: the hypothesis test involves a sampling distribution of means that is neither.

Q: fo (b) What is the mean and standard deviation of the sampling distribution of x assuming u = 4 and…

A: Given that  Sample size n =40 Population mean μ =4 Population standard deviation =2

Q: We have provided a distribution and the observed frequencies of the values of a variable from a…

A: The null and alternative hypotheses are stated below: H0: P1=0.5, P2= 0.3 and P3= 0.2. Ha: At least…

Q: 66 randomly selected students were asked the number of pairs of shoes they have. Let X represent the…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

Q: Before the furniture store began its ad campaign, it averaged 153 customers per day. The manager is…

A: Use the given data to form the excel table:   Number of Costumers x-μ x-μ2   132…

Q: a.Use range-rule-of-thumb to calculate the standard deviation: 113.3, 115.2, 116.8, 116, 116.2,…

A: (a)   Obtain the value of the standard deviation. The value of the standard deviation is obtained…

Q: The lengths of adult males' hands are normally distributed with mean 189 mm and standard deviation…

A:

Q: A beverage company has two bottling plants in different parts of the world. To insure uniformity in…

A: The given data is, Plant A Plant B 12.9 13.3 14.2 13.7 13.7 13.4 13.2 13.5 13.8 12.6…

Q: We have provided a distribution and the observed frequencies of the values of a variable from a…

A: The null and alternative hypotheses are stated below: H0: P1=0.2, P2= 0.1, P3= 0.1, P4= 0.3 and P5=…

Q: Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is 22.9…

A: Step 1:Given data : Mean μ=22.9Standard deviation σ=2.8Sample size : n=33 Step 2:Since the…

Q: ay Your bills: A company audit showed that of 581 bills that were sent out, 324 were paid on time,…

A: 324 paid on time 125 paid upto 30 days late 60 paid between 31 and 90 days late 72 unpaid…

Q: Decide whether the normal sampling distribution can be used. If it can be​ used, test the claim…

A: Here n1 = 155 and n2 = 181 are greater than 30 i.e. large samples Hence we can use normal sampling…

Q: For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c)…

A: We have to find test statistics.

Q: A simple random sample of 27 filtered 100-mm cigarettes is obtained from a normally distributed…

A: Assume that σ is the population standard deviation of tar content of each cigarette.

Q: Determine the null and alternative hypotheses. Choose the correct choice below. O A. Họ: The…

A: Test is that whether the distribution of the variabl3 differs from the given distribution. Given…

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A:

Q: Given the population proportion hypothesis H0: p = 28.6 and H1: p < 28.6​identify the the type of…

A: According to the provided distribution, H0: p = 28.6 and H1: p &lt; 28.6

Q: iven the 4 categories and distribution, apply the Goodness-of-fit test for the claim that the 4…

A:

Q: The manufacturer of a certain candy states that 15% of the candies are brown, 15% yellow, 25% red,…

A: The formula for chi-square test statistic is given as,

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: Sample proportion ) = 0.23Sample size (n) = 100

Q: Which of the following are the assumptions for a Paired Samples t Test? Choose all assumptions which…

A: Introduction: The paired samples t-test is used to compare the mean difference between two paired or…

Q: A sample of 3 measurements are taken and recorded: x = 8, y = 10 and z The sample mean is: x %3D…

A: Given: x=8,y=10,z=7x=x+y+z3=8.33

Q: Determine the type of distribution that should be used to test a hypothesis about​a population…

A: Testing of one population proportion: Z test should be used for testing the population proportion…

Q: The acceptable level for insect filth in a certain food item is 5 insect fragments (larvae, eggs,…

A: Here, we know that, sample mean is unbiased estimator of population mean.

Q: A simple random sample of 27 filtered 100-mm cigarettes is obtained from a normally distributed…

A: State the hypotheses