Provide an original example where you perform a hypothesis test using the one-mean z-test. Provide within...

Provide an original example where you perform a hypothesis test using the one-mean z-test. Provide within this part the following items: State the null hypothesis. State the alternative hypothesis test. State the chosen alpha level of significance. Use the critical value approach to determine whether to reject or fail to reject the null hypothesis. Use the p-value approach to determine whether to reject or fail to reject the null hypothesis. Discuss how a Type I or Type II error could occur within the context of this example.

Expert Solution

The test statistic is calculated using the formula mentioned. The critical value and p value is obtained from STATKEY (images attached for reference). The Type I and Type II error in context with the problem is provided.

orchestra answered 2 years ago

Provide an original example using the one-mean t-interval procedure (population standard deviation unknown). For this example,...

Provide an original example using the one-mean t-interval procedure (population standard deviation unknown). For this example, provide the following items: Describe the assumptions that must be met before using this procedure. Compute the confidence interval for a 95% confidence level. Show all work.

Find confidence interval and perform a hypothesis test for the mean of one population. The economic...

Find confidence interval and perform a hypothesis test for the mean of one population. The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #1. Countries that are considered high-income have a mean economic dynamism of 60.29. Do the data show that the mean economic dynamism of middle-income countries is less than the mean for high-income countries? Test at the 5% level. Table #1...

hypothesis statements using symbols for Two sided hypothesis test for the mean One sided hypothesis test...

hypothesis statements using symbols for Two sided hypothesis test for the mean One sided hypothesis test for the mean Two sided hypothesis test for variance One sided hypothesis test for variance Explain what each symbol you used above stands for

Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population...

Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population standard deviation is known, the population distribution is Normal, and the sample is small. Would you perform a z-test or t-test? a.The z-test is appropriate. b.Either test is appropriate. c.The t-test is appropriate. d.Neither test is appropriate.

##1a) *Using the wt column within the mtcars data set, test the hypothesis that the mean...

##1a) *Using the wt column within the mtcars data set, test the hypothesis that the mean weight is different from 3.00. Use an alpha level of .01* ```{r} ``` ##b *Comparing different precise recipies for chocolate cake, a study was conducted to examine the weight in grams of flour in each recipe. A well known scientific cookbook claims that the true mean number of grams of flour to put in chocolate cake is 250 grams. A sample of 8 cake...

perform the appropraite test of hypothesis with minitab. Null hypothesis: mean of the post scores is...

perform the appropraite test of hypothesis with minitab. Null hypothesis: mean of the post scores is equal or lower than the mean of the pre score. Alternative hypothesis: mean of the post scores is higher the mean of the pre score. POSTSCORE PRESCORE 129 148 147 154 147 135 140 164 157 132 144 150 147 154 156 143 151 139 144 132 144 136 149 122 128 151 154 134 145 134 131 135 158 135 153 150 140...

What is one example where a hypothesis test would be an appropriate way to make a...

What is one example where a hypothesis test would be an appropriate way to make a decision in your professional or interest area? Why would this method be better than another (for example, confidence intervals, point estimates or probability). What would an appropriate null and alternate hypothesis be? *please write clearly. thank yoy

Perform an appropriate hypothesis test for a population mean using the p-value approach. Last year, the...

Perform an appropriate hypothesis test for a population mean using the p-value approach. Last year, the mean running time for a certain type of flashlight battery was 8.5 hours. This year, the manufacturer has introduced a change in the production method which he hopes will increase the mean running time. A random sample of 4 0 of the new light bulbs was obtained and the mean running time was found to be 8.7 hours. Do the data provide sufficient evidence...

You are advised to perform the appropriate hypothesis test using pencil and paper, along with a...

You are advised to perform the appropriate hypothesis test using pencil and paper, along with a calculator and statistical tables, and then use your working to answer the questions below. It is claimed that on-line shopping can lead to considerable savings in some areas. One magazine claims that purchasing a personal computer (PC) from an on-line company results on average in savings of at least $750. A consumer group wished to test whether the claim was exaggerated, and a random...

UPDATED Use the sample you chose to perform a meaningful hypothesis test for the mean. Include...

*UPDATED* Use the sample you chose to perform a meaningful hypothesis test for the mean. Include all the assumptions, identify clearly the null and alternate hypotheses, show the method used to test the hypothesis and write a clear conclusion sample x ̅=200 population mean= 266.5 sample n=32 population size=263 S=828.1 Assumptions/Claim: -10 pts- Null Hypothesis H0: -5 pts- Alternate Hypothesis H1: -5 pts- Method to Test the Hypothesis: -5 pts- Hypothesis conclusion: -10 pts- Sample is: 19 24 8 21...

Question