Question: This is what I can do it's a practice question A humane society claims that less than 69% of households in a certain country own
This is what I can do it's a practice question


A humane society claims that less than 69% of households in a certain country own a pet. In a random sample of 600 households in that country, 390 say they own a pet. At a = 0.10, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. U. Ho: p2 0.69 UE. Ho: P 8 (claim) Quiz: Module 6 and 7: Quiz (for an 8 week class) construct a 99% confidence interval for u, - jiz with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are pproximately normal with unequal variances. x1 106 mg. s, - 3.62 mg. n, - 19 X2 # 77 mg, $2 = 2.14 mg, n2 = 14 Stats Confidence interval when variances are not equal d.f. is the smaller of n, - 1 or n2 - 1 Enter the endpoints of the interval. 8 (claim) OD. Ho: Ps Ha: p> Ha : P# (b) Use technology to find the P-value. Identify the standardized test statistic. z= (Round to two decimal places as needed.) Identify the P-value P =] (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis and (d) interpret the decision in the context of the original claim. the null hypothesis. There |enough evidence to the society's claim. Test the claim about the difference between two population means , and u2 at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. Claim: H1 = H2; a =0.01 Population statistics: of = 3.4, 02 = 1.5 Sample statistics: x1 = 17, n, = 27, x2 = 15, n2 = 28 Determine the alternative hypothesis Ha: H1 # H2 Determine the standardized test statistic. z= 2.80 (Round to two decimal places as needed.) Determine the P-value. P-value = 0.0051 (Round to three decimal places as needed.) Test the claim about the difference between two population means , and u2 at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. Claim: H1 SH2; a= 0.10. Assume of #63 Sample statistics: x, =2418, s, = 170, n, = 12 and *2 = 2293, $2 = 51, n2 = 11 OE. Ho: #1 > H2 F. HO: HIS H2 Ha Hy SH2 Ha: 1 1 > H2 Find the standardized test statistic t. 1= 2.43 (Round to two decimal places as needed.) Find the P-value. P = 13.127 (Round to three decimal places as needed.) A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 14 blue crabs from Location A contain a mean of 192 milligrams of fish and a standard deviation of 35 milligrams. The stomach contents of a sample of 10 blue crabs from Location B contain a mean of 189 milligrams of fish and a standard deviation of 42 milligrams. At a = 0.01, can you support the researcher's claim? Assume the population variances are equal. Complete parts (a) through (d) below. (a) Identify the null and alternative hypotheses. Choose the correct answer below
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