Using Excel, what z would be chosen if the critical ratio is .95?

Q: Let Y denote the average age of the two children that are selected. What are all the different…

A: couple has 6 children. Jo, Co, are both 10 years old (they were twins), Joey is 8 years old, and…

Q: The thickness specification for aluminum sheets is 0.246-0.254 mm. Data from an X chart, based on…

A:

Q: According to the Distribution of Z table, ______ % of area is below a Z value of -0.50?

A: Using a standard normal table area to the left of z score, look up for z value -0.50 i.e., -0.5 in…

Q: I found my critical value t is 2.756, s= 0.64, and n=30 what is the margin of error

A: given; critical value of t, t*=2.756 standard deviation(s)=0.64 sample size(n)=30 find margin of…

Q: Find the margin of error for the given values of c, o, and n. c= 0.90, o=2.4, n 100 Click the icon…

A:

Q: Calculate the p-value, using a t-ratio of -2.0991 and DF of 50. Please provide working. DO OT USE…

A: The null hypothesis is that the true population mean of some data set is equal to zero. The…

Q: When performing the Levene’s test of homogeneity what do we want when using an alpha level of .05?

A: Solution:  Levene's test of homogenity that is equality of variance test: To test the hypothesis…

Q: When estimating an unknown parameter, what does the margin of error indicate?

A: Margin of error:Margin of error is a range of values that lie above and below the sample statistic…

Q: Complete the information below by writing them in the blanks. Ho. The relationship between Body Mass…

A: The computed value is 2.30 and the critical value is 4.21.

Q: Hello. I appreciate any help. Thanks.

A: Standard Error of estimate:S=√MSEMean square error:The formula for the mean square error is,MSE =…

Q: The sample is actually 55.  what is the critical value?

A: It is given that the sample is 55 and there are three treatments.

Q: The rare earth element gadolinium is often used as a contrasting agent for MRIS. The concentration…

A:

Q: Given the image below, what can be determined about the z-score associated with the shaded area?

A: We have to identify the z score for given area inder Standard Normal curve.

Q: Fourteen different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given, n=14 df denotes Degree of Freedom.

Q: Find the sensitivity and the specificity

A: here given , A medical research team wished to evaluate a proposed screening for diabetes. The test…

Q: a. What is the number of degrees of freedom that should be used for finding the critical value tu/2?…

A: Given: Sample size n = 50 sample mean = 17.598 sample standard deviation = 16.017127

Q: The point estimate for p, p, is (Round to three decimal places as needed.)

A: Given : Sample Size, n = 1074 Number of successes, x = 346

Q: Number of students in a class of 30 who prefer peanut M&Ms over plain M&Ms

A: A categorical variable is a variable type with two or more categories.

Q: A negative z score indicates that an individual's raw score:

A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…

Q: The correct denominator for the repeated-measures F-ratio is

A:

Q: What is the critical difference? Is (P)Less than or greater than .05?

A:

Q: Click the icon to view the table of critical values. (a) n = | (Round up to the nearest integer.)…

A: Here use margin of error formula

Q: Consider a process with average X-bar equal to 112 and standard deviation equal to 2. If the…

A: Given mean=112, standard deviation=2 and specification limit = 110±7 For X¯ bar chart, we find LSL…

Q: Type the R code used to calculate the "critical values" that correspond to a 97% interval

A: To calculate  the critical value in R, you can use  the following syntax: To find Z critical value…

Q: Thirteen different video games showing alcohol use were observed. The duration times of alcohol use…

A: Given,sample size(n)=13population mean(μ)=77secH0:μ=77 secHa:μ>77 sec

Q: Find the margin of error for the given values of c, o, and n. c = 0.95, o = 3.4, n 64 Click the icon…

A: We have given that,  Population standard deviation (σ) = 3.4, sample size (n) = 64 and confidence…

Q: Naini, Cobourne, McDonald and Donaldson (2008) reported that a specific ratio of height to face…

A: According to the provided data, it is reported that a specific ratio of height to face length of 1…

Q: Based on the diagram below make a flowchart for a t test for a mean.

A: Given:

Q: a mean weight of 32 ounces. Assume the population what is the maximal margin of error associated…

A:

Q: tion, the standard distance between a sample mean and the population mean is 5 points for samples of…

A: The formula of standard error: SE=sn Now,  the standard distance between a sample mean and the…

Q: . A process has demonstrated that, when held in control, it can maintain a o of 0.15 cm. A certain…

A: Given: Mean=15Standard deviation=0.15Limits=15.00±0.50 cm

Q: Based on the diagram below, create a flowchart when a z-test for a  proportion is appropriate or…

A: Z-test for a proportion: This test is applicable when population is normally distributed. It is used…

Q: What is thethe critical value Z0.10

A: From the given information, It has been given that, Level of significance (α) =0.10 Thus,

Q: Find the critical values using the info in the table. sethypothesis a) u - µ0 > 00.042 b) u - µo…

A: (a) Given the hypothesis: μ-μ0>0 and α=0.042 That means this is a right tailed test. From the…

Q: Determine the critical value zα/2 that corresponds to the given level of confidence. 95%

A: Given information- Confidence level, c = 0.95 So, significance level α = 0.05 We have to find the…

Q: How many F-ratios are produced in a 4 x 2 ANOVA? Explain your answer.

A: The study is about to find the number of F-ratios are produced in a 4 x 2 ANOVA.

Q: When computing a 95% CI for a population mean, the ____ is used as the point estimate.

A: Given that  When computing a 95% CI for a population mean, the ____ is used as the point estimate.…

Q: Two methods are used for determining ESR values of 100 persons, first is the Wintrobe method and…

A: Sensitivity is given by, Sensitivity= True positive/(True positive+ False Negative) = TP/(TP+FN)

Q: Find the critical value tc for a 90 % Con fidence level

A: From the given information, The sample size is 24. degrees of freedom=24-1=23 Given confidence level…

Q: According to the Distribution of Z table, ______________ % of area is below a Z value of -1.16?

A: Z value = -1.16 Percentage of area that is below a Z value of -1.16 is given as,

Q: Click the icon to view the table of Chi-Square critical values. (Type a whole number.) df=

A: It is given that the confidence level is 0.80 and the sample size n is 26.

Q: The average sales in a  company  = 225 St devaitin = 40  Using z scores, any sale over what…

A: mean = 225 sigma = 40

Q: Find the margin of error for the given values of c, o, and n. c = 0.95, o = 2.8, n = 81 Click the…

A: We have given that,  Population standard deviation (σ) = 2.8, confidence level (c) = 0.95 or 95% and…

Q: ean is (Round to the nearest tenth as needed.) measures of central tendency, including the midrange.…

A: X 43 51 11 91 77 36 64 37 42 72 54 62 36 75 51 72 37 29 39…

Q: Using a=0.05, find the critical value and apply the rejection/decision rule. What is your…

A:

Q: A researcher calculates an F value for an ANOVA and it results in the value -12.155. The critical…

A: ANOVA or Analysis of Variances is one of the most important fields in Statistic. The reason for…

Q: Eight individual alloy specimens were tested for hardness. The following results were obtained:…

A: Standard deviation formula:  s = ∑(xi-μ)2N-1

Q: The standard mean constant of the composition is.

A: Given:  E(w)=1000 & E(ln*w)=3600  Then standard mean constant value ?

Q: From a population of 10,000 individuals of a certain town, what sample size is needed in order to…

A: Yamane's formula can be used to determine the minimum sample size required for the study with…

Q: ind the z score for population va

A: Find the z score for population value of 3

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.