Your boss believes that more than 20% of a population subscribes to Netflix. You take a sample of 300 households and discover that 69 households subscribe to Netflix. Set up hypotheses to test this. Perform necessary calculations. Interpret your results.

Q: 18. z = 2.96

A: Given that.   X~N( μ , ?^2 )   μ=30 , ?=4.5  , x= row score    Z-score =( x - μ )/?

Q: n an experiment, the purpose for manipulating the independent variable is to help? A. Establish the…

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Q: Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the…

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Q: 8% of all Americans suffer from sleep apnea. A researcher suspects that a lower percentage of those…

A: The random variable X follows normal distribution. We have to test whether a lower percentage of…

Q: xplain why x follows a binomial distabuton . blnsfead of using What probabilcty use to appoximate…

A: here from given information , no of customer  = 300 p  =proportion of customers ordered pepperoni on…

Q: Question 8 Correlation: Your manager feels employee holidays has a strong correlation with employee…

A: According to guidelines we solve first three sub parts when given multiple sub parts.

Q: 22. Researchers investigated whether a new process for producing yarn could reduce the mean amount…

A: Given that Researchers investigated whether a new process for producing yarn could reduce the mean…

Q: biologist

A: Given, x = independent variable = Seeds produced y = dependent variable  = Sprout percent

Q: Bank of America's Consumer Spending Survey collected data on annual credit card charges in seven…

A: For the given data Hypothesis test for paired t test

Q: 12 female and 7 male students take Mathematics course. While 3 of the female students do not have a…

A: When there is a chance of uncertainty, we find the probability. Probability is, mathematically,…

Q: Using 0.05 level of significance and assuming that the data is normally distributed: • Tell whether…

A: In testing of hypothesis there the decision is taken based on the value of the test statistic. Using…

Q: The number of chocolate chips in a popular brand of cookie is normally distributed with a mean of 19…

A: Given that.  Mean=19  Standard deviation=1.6  Find  P(a<X<b)=90%

Q: Which of the following represents a 98 percent confidence interval for the slope of the…

A: here given  slope of regression line  = 0.161 standard error of slope = 0.073  confidence level 98%…

Q: Company A joined a concrete cylinder contest. The strength of their concrete cylinder is normally…

A: The following information has been given: The strength of the concrete cylinder A is normally…

Q: In eight throws of a die 5 or 6 is considered a success. Find the variance of the Binomial…

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Q: Bag A contains four (4) balls in total: Three (3) balls show $1, and one (1) ball shows $5. • Bag B…

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Q: To compute the confidence interval use a ___ distribution. b. With 90% confidence the population…

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Q: 12c: One researcher estimated that smoking reduces the sense of smell. The mean of the odor test for…

A: Given

Q: normally distributed 18 year old men mean 71 inches and standard deviation 2 inches If random…

A: Given that   n = 21 μ = 71 inches ? = 2 inches By using the central limit theorem we solve this…

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 71…

A: Mean(µ) = 71Standard deviations (σ) = 14

Q: Suppose a set of data has mean u = 29 and standard deviation o = 1.2. (Give answers accurate to…

A: Given that.   X~N( μ , ?^2 )   μ=29.     , ?=1.2   Z-score =( x - μ )/?   NOTE:- According to…

Q: 3. A pharmaceutical company has developed a new that are currently available for this condition…

A: since there are multiple parts , part a , b ,c answered step by step . Kindly repost for more help .

Q: Prior to airport construction, a survey was conducted if the residents in a certain barangay are in…

A: n=350, p=35%,  X~Bin(n=350, p=0.35) P(X≥100)=?

Q: Keep in mind that the words in bold below have technical and formal meanings in statistics. "An…

A: We have the following statement about the  Estimator that is consistent.

Q: Determine what the key terms refer to in the following study. Insurance companies are interested in…

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Q: as one variable decreases, the other variable increases as one variable decreases, the other…

A: We have given that,  A correlation coefficient of 0.05 means that?  We have to check the correct…

Q: A company wishes to purchase one of five different machines: A, B, C, D, or E. In an experiment…

A:

Q: Evaluate F for s, 5.97 and s, = 5.46. S2 F = (Round to two decimal places as needed.)

A:

Q: Consider the standard normal random variable Z. What is PZ> -0.32)?

A: Is is given that Z is standard normal variable i.e Z follows N(mean = 0, SD = 1).

Q: 3. A set of data with a correlation coefficient of -0.55 has a strong negative linear correlation…

A: Given:  A set of data with a correlation coefficient of-0.55 has a a. strong negative linear…

Q: A researcher were conducted in the effect of outdoor activity on mood. She hypotthesized that…

A: Step 1: Null Hypothesis: H0: There is no difference in the means between before mode and after mode.…

Q: 1. Which of the following is(are) example(s) of an experimental research? A study took a random…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question 7 A researcher wishes to estimate the average height of trees in a geographic region. If…

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Q: You are conducting a test of independence for the claim that there is an association between the row…

A: For the given data perform chi square test

Q: A car company claims that its new SUV gets better gas mileage than its competitor’s SUV. A random…

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Q: 12. In a Leichtman Research Group survey of 900 TV households, 74.9% of them had at least one…

A: Here we conduct Z test for Proportion.

Q: ariable of interest here? Is this variable continuous c hape of the distribution. le mean and sample…

A: 0 3                       1 4 5 6 8 8 8             2 0 1 2 4 5 5 5 6 6 7 8 9 3 0 0 1 4 4 7…

Q: Suppose you wanted to test whether or not the payoff to an additional year of education was the same…

A: We want to test whether the pay-off for an additional year of education was same for mean and women…

Q: Round every calculation to 2 decimal points unless the specific question asks for something…

A: Given

Q: 61 57 58 57 61 64 68 51 49 64 50 48 65 52 62 55 54 48 58 64 55 55 54 42 51 65…

A: 61 57 58 57 61 64 68 51 49 64 50 48 65 52 62 55 54 48 58 64 55 55 54 42 51 65 51 54 51 60 62…

Q: A basketball coach believes that the variance of the heights of adult male basketball players is…

A: For the given data Perform F test for the equality of two population variances

Q: What is the chi-square test-statistic for this data? χ2=

A: Given that  Category ObservedFrequency A 33 B 23 C 22 D 44

Q: Evaluate the following formula for p, = 0.6, p2 = 0.1, p1 -P2 = 0, p= 0.758971, q = 0.417202, n, =…

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Q: 5 4月21日周四 28. An environmental group wanted to estimate the proportion of fresh produce sales…

A: We have given the following statement  about the proportion.

Q: 31% of all pygmy softshell toises have stripes on their shells. A herpetologist in Cititon collects…

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Q: A city has two universities. Sixty (60) percent of all students in the city are enrolled at…

A: Given information: 60% of all students in the city are enrolled at University 1. P(University 1)=60%…

Q: In a random sample of 300 patients with rheumatoid arthritis, 192 of them responded favourably to a…

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Q: Analyzing One and Two Variable Data

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Q: new filtering device is installed in a chemical unit. Before its installation, a random sample…

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Q: 61 57 58 57 61 64 68 51 49 64 50 48 65 52 62 55 54 48 58 64 55 55 54 42 51…

A: Introduction:  Measure of Central tendency. There are three types of measure of central tendency…