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A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normally distributed. $3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00 Find the 95% confidence interval for the true mean. (Be sure to indicate your calculations for mean and standard deviation)
suppose sample size n100 sample proportion .25 the null hypothesis is that the true proportion 0.20 and the
Leggo's pesto is make from a recipe brought to America by an immigrant ancestor the present generation refers to as Bisnonna Maria.
BMI in children is roughtl normally distributed with the mean of 24.5 and standard deviation of 6.2. BMI of 30 or more is considered obese. Determine proportion of children are obese?
Describe a 5-step hypothesis test for two variances for a particular claim related to a real life experience. You need to state the claim, define the null and alternate hypothesis
What is the probability of getting a sample mean larger than $135 per hour?
How can I conduct statistic experimental design for three independent variable (time, amount, temperature) are useful to predict Y? Please include any approach steps and How can I interpreted?
the following table shows six years of average annual cost-of-living index datayearannual cost of living
question an investigator hypothesizes that cholesterol level in children might be affected by educating
The state of Texas college admission board has set a standard for automatic acceptances to any university at top 10% of any graduating class will be allowed to attend any university in the state.
Suppose that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.
If the 95% confidence interval for the average age of a learner at Capella is 27.8 yrs.
Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 8 IQ points of the true mean.
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